Return-Path: X-Real-To: stagecraftlist [at] theatrical.net Received: by prxy.net (CommuniGate Pro PIPE 4.2.6) with PIPE id 16202152; Thu, 27 Jan 2005 03:01:20 -0800 X-ListServer: CommuniGate Pro LIST 4.2.6 List-Unsubscribe: List-ID: Message-ID: From: "Stagecraft" Sender: "Stagecraft" To: "Stagecraft" Precedence: list Subject: Stagecraft Digest #274 Date: Thu, 27 Jan 2005 03:01:00 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Disposition: inline X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00, OBSCURED_EMAIL,WEIRD_QUOTING autolearn=no version=3.0.2 X-Spam-Level: X-Spam-Checker-Version: SpamAssassin 3.0.2 (2004-11-16) on prxy.net X-TFF-CGPSA-Version: 1.4f2 X-prxy-Spam-Filter: Scanned For info, archives & UNSUBSCRIBE, see --------------------------------------------------- Stagecraft Digest, Issue #274 1. Re: Source for twistlock and edison extension cords by "Alf Sauve" 2. Re: Falling sheaves of paper by Michael Powers 3. Re: Source for twistlock and edison extension cords by "Chris Warner" 4. Re: 3 ph 1 transformer (phase converters) by Michael Powers 5. Extension cords by "Dougherty, Jim" 6. Re: Extension cords, it pays to shop by IAEG [at] aol.com 7. Re: Source for twistlock and edison extension cords by "Paul Schreiner" 8. skelton (dance lighting) by kupfer [at] post.tau.ac.il 9. Re: skelton (dance lighting) by Greg Bierly 10. Re: Flame retardant and velours by "Stephen E. Rees" 11. Re: Source for twistlock and edison extension cords by MissWisc [at] aol.com 12. Re: skelton (dance lighting) by IAEG [at] aol.com 13. Re: Source for twistlock and edison extension cords by Stephen Litterst 14. Re: USITT Housing by "ladesigners [at] juno.com" 15. Re: Source for twistlock and edison extension cords by "Jon Ares" 16. Re: Source for twistlock and edison extension cords by Stephen Litterst 17. Re: Extension cords by "richard j. archer" 18. Re: Falling sheaves of paper by "Jon Ares" 19. Re: Three Phase Power by LoftLight [at] aol.com 20. Re: sacrificial fish by "Karl G. Ruling" 21. Re: Dance Floor Roll Diameter by Michael Feinberg 22. Re: 3 ph 1 transformer (phase converters) by Jerry Durand 23. Re: skelton (dance lighting) by Jerry Durand 24. Re: Secrets of making cables by "Alf Sauve" 25. Re: Secrets of making cables by "Paul Schreiner" 26. Re: Secrets of making cables by Mike Brubaker 27. Blatent commercial post by "David Fox" 28. Re: Falling sheaves of paper by James Feinberg 29. design position in Canada by Jerrard 30. Re: Tree bark by Marty_Petlock [at] sarasotagov.com 31. Re: Dance Floor Roll Diameter by Michael Heinicke 32. Re: Secrets of making cables by "Paul Schreiner" 33. Re: 3 ph 1 transformer (phase converters) by FrankWood95 [at] aol.com 34. Re: USITT Housing by "Dr. Randall W.A. Davidson" 35. Re: Secrets of making cables by FrankWood95 [at] aol.com 36. by "Ronnie Thevenot" 37. tower lifts by Bill Schaffell 38. Re: Tree bark by "Delbert Hall" 39. Shingles by "Tom Grabowski" 40. Re: Shingles by Jerry Durand 41. Re: Shingles by Steve Larson 42. Re: Shingles by Jerry Durand 43. Re: Shingles by "jknipple" 44. Re: Two-Scene Operation of Lighting Consoles [Long & Late post] by Brian Aldous 45. Re: Dance Floor Roll Diameter by Stuart Wheaton 46. Re: Falling sheaves of paper by Brian Aldous 47. Glowing paint by Stephanie Boyd 48. Lights And Cold Weather by "will kent" 49. Re: Shingles by roguerpj [at] mn.rr.com 50. Re: Dance Floor Roll Diameter by Michael Feinberg 51. Re: Falling sheaves of paper by "Jon Ares" 52. Lightweight Clearcom Headset by Mat Goebel 53. Re: Lights And Cold Weather by Dorian Kelly *** Please update the subject line of your reply to use the subject *** line of the message you are replying to! Please only reply to *** one message subject in each reply. ---------------------------------------------------------------------- Message-ID: <00b801c5039b$dfa93630$0400a8c0 [at] ALFOFFICE> Reply-To: "Alf Sauve" From: "Alf Sauve" References:

Subject: Re: Source for twistlock and edison extension cords Date: Wed, 26 Jan 2005 06:28:26 -0500 Several of the theatre supply companies will make them up. Check locally else freight will kill you. Yes, they charge a lot for their labor. What's your labor worth? Beware: HD and Lowes do not always carry SO grade when they offer 12/3 on sale! Plus they rarely offer shorter lengths. Plus they never have twofers. BIG SECRET. You can buy cable at wholesale from the cable specialty companies yourself, IF you don't mind getting 500' rolls. But considering you'll be saving 30-40%......consider sharing it with another theatre. What amazes me is people who buy 500' rolls from a retail dealer. Another secret: There is a right end and a wrong end of the cable for the male and female connectors. Alf ----- Original Message ----- From: "Mark O'Brien" To: "Stagecraft" Cc: "Mark O'Brien" Sent: Tuesday, January 25, 2005 5:52 PM Subject: Re: Source for twistlock and edison extension cords > For info, archives & UNSUBSCRIBE, see > --------------------------------------------------- > > On Jan 25, 2005, at 3:44 PM, Mat Goebel wrote: > >> For info, archives & UNSUBSCRIBE, see >> --------------------------------------------------- >> >> Hey all, >> >> Does anyone have a preferred vendor for affordable extension cords in >> twistlock and edison varieties? I can't find anyone local to me that >> can get them at a reasonable price - hardware stores have to special >> order and the local mega-theatre-rental company wants my first born >> child. >> >> Please email me off list, I don't want this to turn into a >> commercialised thread. >> >> Thanks again for your continued help. >> -- >> Mat Goebel >> Cell: 510.693.1448 >> > > > > Oh, why not. > > Myself, I would like to hear about some place to by these. I just wish > some places I work for would buy some, instead of going with Home Depot > Orange colored ones. I want mine in purple, myself. > > > Mark O'Brien > Opera Technical Director > University of Arizona, School of Music > Tucson, AZ > 520/621-7025 > 520/591-1803 Mobile > > > ------------------------------ Date: Wed, 26 Jan 2005 08:34:50 -0500 From: Michael Powers Subject: Re: Falling sheaves of paper Cc: jonares [at] hevanet.com Message-id: <41F79C7A.4070304 [at] theater.umass.edu> jonares [at] hevanet.com writes: <<..... I am designing a show that needs to have reams of paper falling from the heavens ............. I would love to hear if anyone's done such a thing. The papers should come fluttering down, not a 'dump' of papers ("THUD!"). .........>> Jon, Check out the USITT Tech expo book from 2003, page 41, "The ""Uncommon"" letter Delivery System". I think it is very close to what you need if not exactly the ticket. Briefly, picture a long, flexible belt about a foot wide. Wrap the belt around a piece of PVC tube or similar and as you wind it up, insert the pieces of paper at the intervals desired. As the belt unwinds on to another roller, the pieces of paper fall at a rate and quantity determined by how you load it and how fast you pull or drive the take up reel. HTH. Michael Michael Powers, Technical Director UMass Amherst 413-545-6821 mfpowers (at) theater.umass.edu mptecdir (at) aol.com ------------------------------ Message-ID: <04ae01c503ad$bdd11930$6501a8c0 [at] chris> From: "Chris Warner" Cc: alf [at] sauve.org (Alf Sauve) References:

Subject: Re: Source for twistlock and edison extension cords Date: Wed, 26 Jan 2005 05:48:39 -0800 > Another secret: There is a right end and a wrong end of the cable for the > male and female connectors. > > Alf Okay Alf, this one I gotta here! Thanks in advance Chris Warner -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.7.3 - Release Date: 1/24/2005 ------------------------------ Date: Wed, 26 Jan 2005 08:52:18 -0500 From: Michael Powers Subject: Re: 3 ph 1 transformer (phase converters) Message-id: <41F7A092.8000806 [at] theater.umass.edu> Jerry Durand writes: << ......there are single phase to 3-phase converter boxes used with motors. Look up "phase converter" on McMaster (page 785). ........ There may even be solid-state ones now..... >> Jerry, There are indeed solid state converters. In fact on the page you cite, the category "A" transformers are all solid state. A word of caution here to any one needing to use a converter, in my experience, the solid state or transformer configured converters put out Delta 3 phase not wye, I'm not sure about the motor driven converters. Delta is great for motors but if you want to pull 120 vac one of the legs will be a high leg with about 180 volts to ground. So check the voltage carefully before hooking up any 110-120 volt equipment. Michael Michael Powers, Technical Director UMass Amherst 413-545-6821 mfpowers (at) theater.umass.edu mptecdir (at) aol.com ------------------------------ Date: Wed, 26 Jan 2005 09:05:54 -0500 Subject: Extension cords From: "Dougherty, Jim" Message-ID: Our local lumberyard now sells 12 ga. extension cords in a variety of bright colors, including purple-ish. Some come with either a GFCI or a neon light in the connector so that you know if it's hot or not. I don't need any cords at the moment, but when I do I'll look at them, because it seems a good way to tell your cords from someone else's, or the carps' from the squints' from the squeaks', if that matters to you. As for the GFCI's and the indicator lights, contractors are supposed to have the former and the latter just seems to make sense. Other places including online and catalog stores sell these too, so don't feel obliged to travel to VT to get them. The snow is nice, though... - Jim Dougherty ATD, Middlebury College ------------------------------ From: IAEG [at] aol.com Message-ID: <110.41ffd28d.2f29001c [at] aol.com> Date: Wed, 26 Jan 2005 09:15:56 EST Subject: Re: Extension cords, it pays to shop In pricing "over the counter" extension cords, it really pays to do your shopping. Earlier this fall I was in need of MASSIVE amounts of u-ground, black or dark green out door extension cords. Both LOWES and WALMART carried exactly the same manufacturer of 14/3 40' Green Cords. WALMART was close to being half the price of LOWES. Don't recall the exact price but it was something like $7.67 at LOWES and $3.90 at WALMART. For EXACTLY the same product from the same manufacturer. (by the way , you can't purchase a male and female U Ground connector for $ 7.67!) I purchased the entire inventory at WALMART then went next door with the receipt (which had the SKU on it) and one of the cords to LOWES I then purchased the entire inventory at LOWES who MATCHED THE WALMART PRICE MINUS 10% It's not always this easy, but in this case we were talking about exactly the same product and LOWES (after a brief chat with the Manager on Duty) stepped up to the plate and more than matched the WALMART price. Hopefully this won't start another round of "Walmart Bashing" posts. very best, Keith Arsenault IAEG - International Arts & Entertainment Group Tampa, Florida ------------------------------ Subject: RE: Source for twistlock and edison extension cords Date: Wed, 26 Jan 2005 09:16:09 -0500 Message-ID: <6E497ADB607656479C24E6D7BF6B505A0196C6C2 [at] exchange.rmwc.edu> From: "Paul Schreiner" > > Another secret: There is a right end and a wrong end of=20 > the cable for=20 > > the male and female connectors. > > >=20 > Okay Alf, this one I gotta here! (sic) It has to do with the twist of the individual conductors and how they line up with the posts on the connector. For example, looking at the back of a 3-prong Edison male plug, I have the hot at about 10:00 and the neutral at 2:00. So, reading clockwise, the layout is hot-neutral-ground. Cut a length of 12/3 cable and compare the ends. One end will have hot-neutral-ground in a clockwise arrangement, the other will be counter-clockwise. You want to fix the male plug described above to the end of the cable that has the CCW arrangement; it makes installation a little easier, especially when you're trying to minimize how much of the cable jacket you remove. It usually (in my experience) makes more difference with Edison and twistlock connectors than it does with stage pin, but it can be noticeable there as well... ------------------------------ Message-ID: <1106749532.41f7a85ccce12 [at] webmail.tau.ac.il> Date: Wed, 26 Jan 2005 16:25:32 +0200 From: kupfer [at] post.tau.ac.il Subject: skelton (dance lighting) I remember reading a great article by Tom Skelton but I can't find it now= , don't even remember in which journal it appeared, and I'd like to find it for m= y students. Anybody have a clue? He said something there I've often quoted = and used: that in every dance he finds one moment which is most significant f= or him, and then builds the rest of the lighting from that. By the way I'm writing from school again but with the text editor definit= ely set to English. Wonder if it will still come out right-justified. Judy ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program. ------------------------------ In-Reply-To: References: Message-Id: From: Greg Bierly Subject: Re: skelton (dance lighting) Date: Wed, 26 Jan 2005 09:43:57 -0500 Still came through right justified. I looked in the raw source and it had the charset=CP1255 listed. I would have no idea how to change. It does make your emails stand out. ------------------------------ Message-ID: <41F7AD95.7090002 [at] fredonia.edu> Date: Wed, 26 Jan 2005 09:47:49 -0500 From: "Stephen E. Rees" Reply-To: Rees [at] fredonia.edu Subject: Re: Flame retardant and velours References: Thanks for this information Roy. Part of the confusion encountered seems to be the duration of the certification in a specific jurisdiction. A city or region's length of certification may bear no resemblance to the manufacturer's claims. Some are more stringent as to duration than others. I am looking a certificate from KM and their certificate states that their process is in conformance with laws of California, City of Boston, New York Port Authority, Commonwealth of Mass as well as NFPA Small Scale and Large Scale. They also say that the FABRIC should withstand up to 10 "pure solvent dry cleanings". Steve Rees, TD SUNY-Fredonia Roy Harline wrote: > The last time I spoke with KM fabrics about the duration of the flame retardant treatment [snipped] ------------------------------ From: MissWisc [at] aol.com Message-ID: <1f1.33e43609.2f290840 [at] aol.com> Date: Wed, 26 Jan 2005 09:50:40 EST Subject: Re: Source for twistlock and edison extension cords Cc: pschreiner [at] rmwc.edu In a message dated 1/26/5 8:17:27 AM, pschreiner [at] rmwc.edu writes: << Cut a length of 12/3 cable and compare the ends. One end will have hot-neutral-ground in a clockwise arrangement, the other will be counter-clockwise. You want to fix the male plug described above to the end of the cable that has the CCW arrangement; it makes installation a little easier, especially when you're trying to minimize how much of the cable jacket you remove. >> When my dad taught me this, he told me it was to keep the wires going in the same lay as they were manyfactured... that they tend to fray/short less if they aren't being asked to go "backward" once they get to the connector. Makes sense! I'm still using the extension cord I made for the 4-H fair 30 years ago, so I'd say it was good advice. Kristi ------------------------------ From: IAEG [at] aol.com Message-ID: <111.42610de7.2f2908a5 [at] aol.com> Date: Wed, 26 Jan 2005 09:52:21 EST Subject: Re: skelton (dance lighting) In a message dated 1/26/05 9:45:31 AM, gbierly [at] dejazzd.com writes: >Still came through right justified. I looked in the raw source and it > >had the charset=CP1255 listed. I would have no idea how to change. It > >does make your emails stand out. left justified here, , , very best, Keith Arsenault ------------------------------ Date: Wed, 26 Jan 2005 09:56:35 -0500 From: Stephen Litterst Subject: Re: Source for twistlock and edison extension cords Message-id: <41F7AFA3.60D92DAF [at] ithaca.edu> Organization: IC-Dept. of Theatre Arts References:

Chris Warner wrote: > --------------------------------------------------- > > Another secret: There is a right end and a wrong end of the cable for the > > male and female connectors. > > > > Alf > Okay Alf, this one I gotta here! Twist lock and edison connectors are round, so they're the ones where this is relevant. If you hold the raw cable so you can read the rating on the jacketing, the right side is the female side. What this means is that the lay of the conductors matches up with the orientation of the pins on the connector, so you don't have to do any special crossing of conductors to make things line up. If you're building one cable, it doesn't matter much. if you're building 20, it really helps. Steve LItterst -- Stephen C. Litterst Technical Supervisor Ithaca College Dept. of Theatre Arts 607/274-3947 slitterst [at] ithaca.edu ------------------------------ From: "ladesigners [at] juno.com" Date: Wed, 26 Jan 2005 15:14:52 GMT Subject: Re: USITT Housing Message-Id: <20050126.071456.26713.114734 [at] webmail05.lax.untd.com> I also have paid my own way for the last 30 USITT conferences, most of the LDI trade shows, plus Lightfair and other meetings where proposed codes and regulations are discussed, and ATA Conferences before that. /s/ Richard The costs of attending USITT, ESTA, ETCP, etc. conferences and gatherings come right out of my relatively shallow pocket. Peter Scheu ------------------------------ Message-ID: <002101c503bd$8b874ed0$0600000a [at] BRUTUS> From: "Jon Ares" References:

Subject: Re: Source for twistlock and edison extension cords Date: Wed, 26 Jan 2005 07:41:47 -0800 > If you hold the raw cable so you can read the > rating on the jacketing, the right side is the female side. The way I was taught to remember this is "The female is always right!" As in life.... -- Jon Ares Program Director, West Linn HS Theatre Arts www.hevanet.com/acreative www.wlhstheatre.org ------------------------------ Date: Wed, 26 Jan 2005 10:43:03 -0500 From: Stephen Litterst Subject: Re: Source for twistlock and edison extension cords Message-id: <41F7BA87.23EBF1FB [at] ithaca.edu> Organization: IC-Dept. of Theatre Arts References:

Jon Ares wrote: > --------------------------------------------------- > > > If you hold the raw cable so you can read the > > rating on the jacketing, the right side is the female side. > > The way I was taught to remember this is "The female is always right!" > > As in life.... And the female connector is the source of power. As in life... -- Stephen C. Litterst Technical Supervisor Ithaca College Dept. of Theatre Arts 607/274-3947 slitterst [at] ithaca.edu ------------------------------ Message-Id: In-Reply-To: References: Date: Wed, 26 Jan 2005 11:16:52 -0500 From: "richard j. archer" Subject: Re: Extension cords >For info, archives & UNSUBSCRIBE, see >--------------------------------------------------- > >Our local lumberyard now sells 12 ga. extension cords in a variety of bright >colors, including purple-ish. Some come with either a GFCI or a neon light >in the connector so that you know if it's hot or not......... >- Jim Dougherty >ATD, Middlebury College We've got hot pink with neon for our 4 genie lifts. It's pretty obvious when the cords are not staying with the lifts. Dick A TD, Cornell Univ. ------------------------------ Message-ID: <004701c503c3$a6617cc0$0600000a [at] BRUTUS> From: "Jon Ares" References:

Subject: Re: Falling sheaves of paper Date: Wed, 26 Jan 2005 08:25:29 -0800 >>it was done with a series of spring >>clips rigged so that you could pull a string and a few sheets of paper >>would >>fall. I believe we did 2 or 3 of them over the stage. > > Same idea but use spring clothes pins (wooden). Cheap > This is interesting - can one explain more how this works? A line of clothespins holding sheets of paper? As simple as that? If so, that would definitely work, but I'd need dozens of them -- it needs to 'snow' sheets of paper for maybe up to a minute. I'm thinking of 3 general areas onstage, but it needs to be somewhat steady. Boyd's snow cradle thing: how big is your snow cradle? (Wide?) I love the wheel on the stack of paper thing. When I first read that, a copy machine came to mind, since that's how they feed the machine. I started imagining dragging a noisy RisoGraph hi-speed copier out there, and have it shoot sheets - although risk of decapitation by paper is a distinct possiblility. I love the RC car idea.... and since this/these contraptions will have to fly out on a batten or two, this might be a lot better than clothespins of papers. Thanks for all the ideas.... if anyone has any more, or ideas on how to make the previous ideas super-charged, pass them on! -- Jon Ares Program Director, West Linn HS Theatre Arts www.hevanet.com/acreative www.wlhstheatre.org ------------------------------ Date: Wed, 26 Jan 2005 11:25:36 -0500 From: LoftLight [at] aol.com Subject: Re: Three Phase Power Message-ID: <016286AE.16231600.02682445 [at] aol.com> David Fox was gracious to post this when I had the question of distributing loads at the rack. Here's the breakdown of which dimmers are fed which phases. HTH, Aaron Meadow LoftLight [at] aol.com www.meadowlight.com SP6 (In Three Phase mode) Phase A Dimmers 1-4 Phase B Dimmers 5-8 Phase c Dimmers 9-12 SP6 (In Single Phase Mode) Phase A Dimmers 1-6 Phase B Dimmers 7-12 SP12 (In Three Phase Mode) Phase A Dimmers 1-8 Phase B Dimmers 9-16 Phase C Dimmers 16-24 SP 12 (In Single Phase Mode) Phase A Dimmers 1-16 Phase C Dimmers 17-24 Touring racks alternate phases every 8 dimmers. You can see a color coded diagram in the patch bay but here it is for reference: SP 24 Touring Rack Phase A Dimmers: 1-8,25-32 Phase B Dimmers: 19-16,33-40 Phase C Dimmers: 17-24,41-48 SP 36 Touring Rack Phase A Dimmers: 1-8,25-32,49-56 Phase B Dimmers: 9-16,33-40,57-64 Phase C Dimmers: 17-24,41-48,65-72 SP 48 Touring Rack Phase A Dimmers: 1-8,25-32,49-56,73-80 Phase B Dimmers: 9-16,33-40,57-64,81-88 Phase C Dimmers: 17-24,41-48,65-72,89-96 I hope this helps! David Fox ETC Technical Support Supervisor Direct 608-824-5056 Toll Free Direct 888-908-2193 ------------------------------ From: "Karl G. Ruling" Date: Wed, 26 Jan 2005 11:30:35 -0500 Subject: Re: sacrificial fish Reply-to: kruling [at] esta.org Message-ID: <41F77F5B.26630.5A32D2 [at] localhost> In-reply-to: > > I had always thought that the further apart metals were on the > periodic table, the greater the galvanic reaction. And as someone else > mentioned, a sacrificial anode like a zinc fish from a boating supply > works well. Are they rated for rigging applications? > For rigging you have to sacrifice a bird. ------------------------------ Message-Id: In-Reply-To: References:

Date: Wed, 26 Jan 2005 11:47:53 -0500 From: Michael Feinberg Subject: Re: Dance Floor Roll Diameter >Cosmo Catalano wrote: >I'm designing a cart to carry dance floor. What is the diameter of >574 linear feet of Adagio dance floor? Starting on a drum of 8". >The thickness of the floor is .06 inches. > >Sam Fisher wrote: >574 feet of .06 inch floor, starting on an 8" drum >will take about 270 wraps and be about 40 inches in diameter when finished. > >Stuart Wheaton wrote: >r(n) = r(o) + [[sqr root of(( 4*pi*r(o) + t)^2 + 8*t*L)] - >(4*pi*r(o) + t) all over 2] >I can send this to anybody who wants it in a pdf, where the equation >is actually legible...and she included the derivation... I'd be interested in seeing a PDF, as by following the above formula I get a 110" diameter roll, which differs from Sam's 40 inches and my calculation of 136 wraps and 24.25" diameter. (Though 270 wraps does indeed equal 40" diameter.) My method avoids math and took less time to do than writing this e-mail did. Take a spreadsheet: -in the first column put the initial diameter, and in the cell below it enter a formula adding the increase in diameter (.06x2). -in the second column, enter a formula for calculating the circumference of that wrap (Pi * first column) -in the third column, enter a formula to add up the circumferences (cumulative circumference from the previous row + circumference of the current wrap, in the first row omit the cumulative circumference term) -in the forth column, enter a formula to divide the cumulative circumference (total length in inches) by 12 to get total length in feet -expand the formulas down (in Excel you just select them, move the mouse to the lower left corner of the cell and drag down) and find where the cumulative length is greater than 574'. My answer checks out using a formula I found on the web that says Length = [Pi*(number of wraps)*(outside diam+inside diam)]/2. According to that, 270 wraps would be 1700' of floor, which is approximately what my spreadsheet says (though the difference is greater of 270 then 136). Hmm, 270 equals 135*2, I wonder if Sam mistook the diameter for a radius in his calculations. Okay, enough time spent procrastinating, back to work.... -- -Michael Feinberg, CTS ------------------------------ Message-Id: <6.2.0.14.0.20050126093111.04058e20 [at] localhost> Date: Wed, 26 Jan 2005 09:33:04 -0800 From: Jerry Durand Subject: Re: 3 ph 1 transformer (phase converters) In-Reply-To: References: At 05:52 AM 1/26/2005, you wrote: >There are indeed solid state converters. In fact on the page you cite, >the category "A" transformers are all solid state. I meant semiconductor based. I didn't check if those were. Machine tool suppliers sell ones that are inductor/capacitor boxes to make your 3-phase milling machine work. In any case, don't use ANY of these for dimmers, I'm sure they weren't designed for it. The motor-generator ones MAY work, but why bother? ---------- Jerry Durand Durand Interstellar, Inc. 219 Oak Wood Way Los Gatos, California 95032-2523 USA tel: +1 408 356-3886 fax: +1 408 356-4659 web: www.interstellar.com ------------------------------ Message-Id: <6.2.0.14.0.20050126093504.0404eb38 [at] localhost> Date: Wed, 26 Jan 2005 09:36:38 -0800 From: Jerry Durand Subject: Re: skelton (dance lighting) In-Reply-To: References:

At 06:43 AM 1/26/2005, you wrote: >Still came through right justified. I looked in the raw source and it had >the charset=CP1255 listed. I would have no idea how to change. It does >make your emails stand out. Funny, her messages are always left-justified to me. I get individual messages and use Eudora, if that matters. I have Eudora set to use Internet Explorer to display HTML. ---------- Jerry Durand Durand Interstellar, Inc. 219 Oak Wood Way Los Gatos, California 95032-2523 USA tel: +1 408 356-3886 fax: +1 408 356-4659 web: www.interstellar.com ------------------------------ Message-ID: <021601c503cf$6a793890$0400a8c0 [at] ALFOFFICE> Reply-To: "Alf Sauve" From: "Alf Sauve" References: Subject: Re: Secrets of making cables Date: Wed, 26 Jan 2005 12:30:27 -0500 Paul, Paul, Paul, You will be censored by the Royal Order of Grand Uniquely Electrical Specialists for revealing the secret of the Edison plug. Now nobody is going to willing to pay me $25/connector to put them on, anymore ;-( In the small confines of the Edison connector it saves space, makes it easer to put the wires in the holes, and overall helps insure a strong, long lasting connection. In twist locks there's more room under the hood. In Stage Pin it looks better not to have crossed wires. Alf ------------------------------ Subject: RE: Secrets of making cables Date: Wed, 26 Jan 2005 13:10:41 -0500 Message-ID: <6E497ADB607656479C24E6D7BF6B505A0196C6C7 [at] exchange.rmwc.edu> From: "Paul Schreiner" Cc: alf [at] sauve.org (Alf Sauve) > Paul, Paul, Paul, >=20 > You will be censored by the Royal Order of Grand Uniquely Electrical=20 > Specialists for revealing the secret of the Edison plug. Well, the Grand Poobah (and a couple members of the Supreme High Interminable Trustee Synod) and I had a bit of a falling out, so I already expected to be black-listed from ROGUES. Turns out they all voted for "less filling". (How long did it take to come up with the name to fit the acronym, anyway?) ------------------------------ Message-Id: <6.1.2.0.0.20050126164558.01ae8120 [at] mail.insightbb.com> Date: Wed, 26 Jan 2005 16:46:47 -0500 From: Mike Brubaker Subject: Re: Secrets of making cables Cc: alf [at] sauve.org (Alf Sauve) In-Reply-To: References: ..and how long for you to come up with yours? Mike At 01:10 PM 1/26/2005, Paul Schreiner wrote: > > You will be censored by the Royal Order of Grand Uniquely Electrical > > Specialists for revealing the secret of the Edison plug. > >Well, the Grand Poobah (and a couple members of the Supreme High >Interminable Trustee Synod) and I had a bit of a falling out, so I >already expected to be black-listed from ROGUES. Turns out they all >voted for "less filling". ------------------------------ Subject: Blatent commercial post Date: Wed, 26 Jan 2005 16:33:39 -0600 Message-ID: <34CB2A959285064382C1BBFCC7141E4060710B [at] MIDL-MAILV.etcconnect.com> From: "David Fox" [uncloaking] I rarely do something like this, but thought in this case it may be appropriate and acceptable.=20 I am looking to replace one of my Technical Support Specialists and have a position open. If you or someone you know is interested in moving to Madison Wisconsin and join the fun filled world of Theatrical Technical Support, please review the link below and contact our recruiter. http://www.etcconnect.com/jobs/default.asp#155 David Fox ETC Technical Support Supervisor Direct 608-824-5056 Toll Free Direct 888-908-2193 Please note the following New Addresses: Mail: PO Box 620979 Middleton, WI 53562 Shipments: 3031 Pleasant View Road Middleton, WI 53562 [cloaking] ------------------------------ Date: Wed, 26 Jan 2005 14:55:21 -0800 Subject: Re: Falling sheaves of paper From: James Feinberg In-Reply-To: Message-Id: <5B741E99-6FED-11D9-9093-00039367B7D4 [at] sandiego.edu> Well, I doubt this is the easiest or most cost effective solution for most theatres, but it sounds like Stuart is describing the paper feed mechanism from a photocopier or inkjet printer. If you're somewhere with surplus equipment and maybe the inclination to fiddle with the control circuitry, it might make a fun project... --James Feinberg University of San Diego On Tuesday, January 25, 2005, at 04:51 PM, Stuart Wheaton wrote: > I saw a device that had a tray of papers, and a small motor that rode > on a rod with a rubber wheel pressing down on the papers. Turn on > the motor (make sure it is spinning in the proper direction) and the > wheel spits the papers off the top of the stack, and rides down as the > stack thins. > > Stuart ------------------------------ Message-Id: <8E35C6D9-6FEE-11D9-91BC-000D93685B56 [at] patria.org> From: Jerrard Subject: design position in Canada Date: Wed, 26 Jan 2005 18:03:56 -0500 The School of English and Theatre Studies at the University of Guelph is inviting applications for a tenure-track assistant professorship in theatre studies in the area of design, to begin 01 July 2005. Applications will be accepted until February 26, 2005. For complete information please visit, http://www.uoguelph.ca/englit/pdfs/theatredesign.pdf ------------------------------ Subject: Re: Tree bark Message-ID: From: Marty_Petlock [at] sarasotagov.com Date: Wed, 26 Jan 2005 18:38:30 -0500 On 1/26 Roger wrote: "What suggestions might anybody have for creating realistic tree bark?=A0= Designer's concept is the sort of hobbit universe type trees from the = art of James Christensen.=A0 This tree is for Merry Wives - the opera and= will be about 4" diameter and 18' tall with long gnarly roots spreading = out over the stage.=A0 It must be practical in that Falstaff gets stuck = about halfway up in a large hole in the trunk." After several days of intensive work on his graphics program, Tom, who had written bit after bit of information creating details to give character to the tree trunk said in frustration: " My bark is worse than my bytes!" Marty Petlock Technical Facilities Manager Van Wezel P.A.H. Sarasota, FL. ********** E-mail messages sent or received by City of Sarasota officials and employees in connection with official City business are public records subject to disclosure under the Florida Public Records Act. ********** ------------------------------ Message-ID: <41F829ED.3040700 [at] sbcglobal.net> Date: Wed, 26 Jan 2005 17:38:21 -0600 From: Michael Heinicke Reply-To: mheinicke [at] sbcglobal.net Subject: Re: Dance Floor Roll Diameter References:

In-Reply-To: > My answer checks out using a formula I found on the web that says Length > = [Pi*(number of wraps)*(outside diam+inside diam)]/2. According to > that, 270 wraps would be 1700' of floor, which is approximately what my > spreadsheet says (though the difference is greater of 270 then 136). > Hmm, 270 equals 135*2, I wonder if Sam mistook the diameter for a radius > in his calculations. Michael, Where did you find this formula? Thanks, Mike H ------------------------------ Subject: RE: Secrets of making cables Date: Wed, 26 Jan 2005 18:41:51 -0500 Message-ID: <6E497ADB607656479C24E6D7BF6B505A0196C6C8 [at] exchange.rmwc.edu> From: "Paul Schreiner" > ..and how long for you to come up with yours? >=20 > >Well, the Grand Poobah (and a couple members of the Supreme High=20 > >Interminable Trustee Synod) and I had a bit of a falling out, so I=20 > >already expected to be black-listed from ROGUES. Turns out they all=20 > >voted for "less filling". About three minutes and a quick trip to the thesaurus. S'why it's not up to my usual standards...I open a show tomorrow and that's all the time I could spare! :) ------------------------------ From: FrankWood95 [at] aol.com Message-ID: Date: Wed, 26 Jan 2005 18:58:25 EST Subject: Re: 3 ph 1 transformer (phase converters) In a message dated 26/01/05 17:34:09 GMT Standard Time, jdurand [at] interstellar.com writes: > I meant semiconductor based. I didn't check if those were. Machine tool > suppliers sell ones that are inductor/capacitor boxes to make your 3-phase > milling machine work. This can be done, but the component values are tailored to the load. > > In any case, don't use ANY of these for dimmers, I'm sure they weren't > designed for it. The motor-generator ones MAY work, but why bother? A strong YES to the first part. But a motor-generator will probably survive, as will the dimmers. As Jerry says, though, why bother? Any reasonable size theatre will have a proper three-phase supply incoming. Note that when I say proper, I mean with all of its parameters specified at all times. The power may well come in as three-phase delta, which has no earth. A big enough site will have its own sub-station, with a delta-to-star set of transformers to bring it to normal three-phase star, with the centre point earthed. In the UK, this gives you 230V phase-to-neutral, and 440V phase-to-phase. US numbers will be different. But, no wild phases, which I think must come from a delta connection with one corner grounded. Frank Wood ------------------------------ From: "Dr. Randall W.A. Davidson" Subject: RE: USITT Housing Date: Wed, 26 Jan 2005 16:00:38 -0800 Message-ID: <00b801c50403$3cd25f00$8d90fea9 [at] DrDoomsComputer> In-Reply-To: Richard: you are absolutely correct. I guess the me too club could be formed. 1964 to now, paid my own way. Also LDI, with one exception. ESTA too. AETA and ATA. And so it goes. And it does seem to get a tad more expensive and the years go by and we get older and Social Security and all that. ...Doom -- Dr. Randall W.A. Davidson, Risk International & Associates, Inc. - www.riskit.com Latest workshops for Educational and Entertainment Industry Performing Arts Personnel (Riggers, and Public Assembly and Educational Technicians) www.riskit.com/workshops International Secondary Education Theater Safety Association (ISETSA) - www.isetsa.org -----Original Message----- From: Stagecraft [mailto:stagecraft [at] theatrical.net] On Behalf Of ladesigners [at] juno.com Sent: Wednesday, January 26, 2005 7:15 AM To: Stagecraft Subject: Re: USITT Housing For info, archives & UNSUBSCRIBE, see --------------------------------------------------- I also have paid my own way for the last 30 USITT conferences, most of the LDI trade shows, plus Lightfair and other meetings where proposed codes and regulations are discussed, and ATA Conferences before that. /s/ Richard The costs of attending USITT, ESTA, ETCP, etc. conferences and gatherings come right out of my relatively shallow pocket. Peter Scheu ------------------------------ From: FrankWood95 [at] aol.com Message-ID: <67.3d2bc697.2f2989bc [at] aol.com> Date: Wed, 26 Jan 2005 19:03:08 EST Subject: Re: Secrets of making cables In a message dated 26/01/05 17:50:55 GMT Standard Time, alf [at] sauve.org writes: > In the small confines of the Edison connector it saves space, makes it easer > to put the wires in the holes, and overall helps insure a strong, long > lasting connection. In twist locks there's more room under the hood. In > Stage Pin it looks better not to have crossed wires. It works for most circular connectors, including XLRs and CEE connectors. It even helps on the UK connectors, which have the pins arranged in a triangular pattern in a flat body. Frank Wood ------------------------------ From: "Ronnie Thevenot" Subject: Date: Wed, 26 Jan 2005 17:35:40 -0700 Message-ID: <000201c50408$23ea8a30$6401a8c0 [at] ronnie> Hello, =A0 I am considering purchasing an AutoCAD program for some scene design = work and possibly some light design work.=A0 Vector works has been suggested = to me because of its inexpensive student price. =A0I was wondering if anyone = on the list had any experience with this program. =A0 Thank you, =A0 Ronnie Thevenot rkt [at] ronniethevenot.com ------------------------------ Message-ID: <41F83664.609 [at] earthlink.net> Date: Wed, 26 Jan 2005 16:31:32 -0800 From: Bill Schaffell Subject: tower lifts References: I am considering buying some Penn Fabrication tower lifts model # TE-06 to put in our rental stock. It is a 16' crank up tower. link to site. http://www.pennfabrication.com/ Anyone with experience with these or suggestions for any similar products to consider? b -- Bill Schaffell WJS Studios 909-986-2363 http://www.wjsStudios.com/ ------------------------------ Message-ID: In-Reply-To: From: "Delbert Hall" Subject: Re: Tree bark Date: Wed, 26 Jan 2005 19:39:51 -0500 >After several days of intensive work on his graphics program, Tom, who had >written bit after bit of information creating details to give character to >the tree trunk said in frustration: " My bark is worse than my bytes!" > >E-mail messages sent or received by City of Sarasota officials and >employees in connection with official City business >are public records subject to disclosure under the Florida Public Records >Act. >********** Hey Marty - The City of Sarasota wishes to officially notify you that this was the longest, and possibly the worse, Tom Swify every attempted on this list. ;-) -Delbert ------------------------------ From: "Tom Grabowski" Subject: Shingles Date: Wed, 26 Jan 2005 19:07:38 -0600 Message-ID: <004801c5040c$982976a0$b13c7181 [at] TGRABOWSKI> For a production of _Proof_ I need to cover about 144 sq ft of roof with what looks to be shingles. I would like to keep the weight to a minimum = but still have the 3-d look. Any advice or ideas. Thanks *** Tom Grabowski University of Texas-Pan American Designer/Technical Director Communication Department Tomgrab [at] UTPA.edu Edinburg, Texas 78541 956/381-3588 FAX 956/318-2187 ------------------------------ Message-Id: <6.2.0.14.0.20050126173227.03b74118 [at] localhost> Date: Wed, 26 Jan 2005 17:33:14 -0800 From: Jerry Durand Subject: Re: Shingles In-Reply-To: References: At 05:07 PM 1/26/2005, you wrote: >For a production of _Proof_ I need to cover about 144 sq ft of roof with >what looks to be shingles. I would like to keep the weight to a minimum but >still have the 3-d look. Any advice or ideas. Thanks Metal shingles? Pretty light, look like real shingles (duh), and after the show you can put them on your house. ---------- Jerry Durand Durand Interstellar, Inc. 219 Oak Wood Way Los Gatos, California 95032-2523 USA tel: +1 408 356-3886 fax: +1 408 356-4659 web: www.interstellar.com ------------------------------ Date: Wed, 26 Jan 2005 21:14:00 -0500 Subject: Re: Shingles From: Steve Larson Message-ID: In-Reply-To: Metal shingles. I've heard of cedar, asphalt, and slate. Cedar shingles are not that heavy. Used them on roofs and as a siding cover on sets. There are vacuform shingles in sheets available from several sources. Steve on 1/26/05 8:33 PM, Jerry Durand at jdurand [at] interstellar.com wrote: > For info, archives & UNSUBSCRIBE, see > --------------------------------------------------- > > At 05:07 PM 1/26/2005, you wrote: >> For a production of _Proof_ I need to cover about 144 sq ft of roof with >> what looks to be shingles. I would like to keep the weight to a minimum but >> still have the 3-d look. Any advice or ideas. Thanks > > Metal shingles? Pretty light, look like real shingles (duh), and after the > show you can put them on your house. > > > > ---------- > Jerry Durand > Durand Interstellar, Inc. > 219 Oak Wood Way > Los Gatos, California 95032-2523 USA > tel: +1 408 356-3886 > fax: +1 408 356-4659 > web: www.interstellar.com > > > > > ------------------------------ Message-Id: <6.2.0.14.0.20050126185932.040f0ed8 [at] localhost> Date: Wed, 26 Jan 2005 19:00:07 -0800 From: Jerry Durand Subject: Re: Shingles In-Reply-To: References:

At 06:14 PM 1/26/2005, you wrote: >Metal shingles. I've heard of cedar, asphalt, and slate. They're like the vacuform plastic ones, only real. They come is strips that look like several shingles. ---------- Jerry Durand Durand Interstellar, Inc. 219 Oak Wood Way Los Gatos, California 95032-2523 USA tel: +1 408 356-3886 fax: +1 408 356-4659 web: www.interstellar.com ------------------------------ Subject: RE: Shingles Date: Wed, 26 Jan 2005 22:02:30 -0500 Message-ID: From: "jknipple" There's always 1/8 or 1/4 luan. James Knipple =20 Technical Director REP Stage - www.howardcc.edu/repstage Student-Alumni Arts - Howard Community College=20 - www.howardcc.edu/studentarts jknipple [at] howardcc.edu 410-772-4451 > I need to cover about 144 sq ft of roof with > what looks to be shingles. =20 ------------------------------ In-Reply-To: References: Message-Id: <1E2B0FBF-7012-11D9-8CFD-000A9592AE20 [at] tany.com> Cc: sclausen [at] etcconnect.com (Sarah Clausen) From: Brian Aldous Subject: Re: Two-Scene Operation of Lighting Consoles [Long & Late post] Date: Wed, 26 Jan 2005 22:18:30 -0500 Sorry to be late about this. I use 4 Express consoles: a 72/144 at the Flea Theatre, a 48/96 at Symphony Space, a 24/48 at Aaron Davis Hall, all in NYC, and an Express 250 at the Fisher PAC at Bard College. I also consult for a small rental shop, Big Apple Lights; I provide phone support for renters with control setup & programming questions. One of my FAQ there is "Why doesn't the AB GO button work?" (Ans: because you are in 2-scene mode. here's how to get out of it...") I never use the 2-scene capability. Ever. I spent my early years in the business running preset boards, mostly 36 & 48 ch. 2 scene LMI boards for dozens of off-broadway productions. One of the happiest days of my life was the one I blew the packing peanuts off the wooden sides of an etc Idea. (I still have one of my very own.) At the above 4 theatres, the boards are used in different ways, having to do with theatres' programs. At the Symph we have a rep plot of 96 channels; typically I set a look with the channel faders and then record it as a sub or cue; often we do a show with no rehearsal, just a set list & some hints from the performer (children's shows load in at 8am and perform at 11 am, for example). I then use the channel faders to adjust a look live. The ability to "update" a sub or cue with channel faders would be handy. At the Flea, the many channel faders can used to control the attributes of the 4 moving lights. Kyle Chepulis just happened to set it up with 72 dimmers and 4 wiggle lights 18 ch each. Everything has a handle. At ADH there are only 36 dimmers (of 7.2kW capacity!) so the board is run as "one scene + subs" with the first 12 subs in the lower row recorded as ch. 25-36, leaving 12 subs to work with. Both there & at Bard the board is typically used as standard playback of recorded cues. Here's a question I'd like to see asked: Is there a venue which DOESN'T have a bottle cap taped over [CD GO] ? There's a candidate for cutting - make it a soft key. I do use the CD fader pair, frequently - but I always write a cue for the AB linked to a macro which fires the CD, and another later clearing it. The board op should only ever be pushing one GO button. And of course, please, please replace the trackpad with something functional or just lose it. Brian Aldous Lighting Design / Technical Artistry brian [at] tany.com On Jan 18, 2005, at 6:00 AM, Stagecraft wrote: > >> For info, archives & UNSUBSCRIBE, see >> >> --------------------------------------------------- >> >> Hi all - >> >> I look to the wisdom of the list... >> >> I am curious how many of you that have Express-style consoles with >> Two-Scene operation actually use the two-scene mode during shows. >> Specifically, are you running your shows with manual crossfades >> between >> the two banks of channel faders? Or do you mainly use the channel >> faders >> (or keypad) to set your looks, then record them to the cue list using >> the keypad for playback? >> >> If you are using the two-scene operation for playback, how many >> channels >> do you typically run in that way? > BA Brian Aldous Lighting Design brian [at] tany.com ------------------------------ Message-ID: <41F862F7.4000807 [at] fuse.net> Date: Wed, 26 Jan 2005 22:41:44 -0500 From: Stuart Wheaton Subject: Re: Dance Floor Roll Diameter References:

In-Reply-To: Michael Heinicke wrote: >> My answer checks out using a formula I found on the web that says >> Length = [Pi*(number of wraps)*(outside diam+inside diam)]/2. >> According to that, 270 wraps would be 1700' of floor, which is >> approximately what my spreadsheet says (though the difference is >> greater of 270 then 136). Hmm, 270 equals 135*2, I wonder if Sam >> mistook the diameter for a radius in his calculations. > Michael, > Where did you find this formula? > > Thanks, > Mike H I'm confused... It seems to me there are too many unknowns in your formula. How do you work out the number of wraps and the outer diameter of the roll at the same time? In order to solve this you have to know more than the original question offerred. Or am I missing something? Stuart ------------------------------ In-Reply-To: References: Message-Id: <583920E2-7015-11D9-8CFD-000A9592AE20 [at] tany.com> From: Brian Aldous Subject: Re: Falling sheaves of paper Date: Wed, 26 Jan 2005 22:41:36 -0500 When we did Quills at BTF the director wanted lots of sheets paper floating down on stage & audience. I seem to recall that we went with the lots of apprentices in the rafters solution. BA Brian Aldous Lighting Design brian [at] tany.com On Jan 26, 2005, at 6:00 AM, Stagecraft wrote: > Re: Falling sheaves of paper ------------------------------ Date: Wed, 26 Jan 2005 22:49:09 -0500 From: Stephanie Boyd Subject: Glowing paint Message-Id: <6ae648f4.c5073e02.81cb700 [at] mirapoint.uc.edu> I have just finished seeing the Playhouse in the Park's new play "Bad Dates". On the skyline of the town is this pseudo- flourescent-like paint that only glows when a certain type of light is shown on it. I was wondering if anyone knew what type of paint and light combination could cause this. It glowed a faint shade of pink if that helps anyone. Thanks, Stephanie Boyd CCM Student TD&P Major-specialization Stage Management ------------------------------ Message-ID: In-Reply-To: From: "will kent" Subject: Lights And Cold Weather Date: Thu, 27 Jan 2005 04:10:23 +0000 Hey All, I have to light an outdoor skating rink on friday. Im using a bunch of Pars of different sizes. My question is whats the best way to turn them with causeing the least shock/ damage to the filaments. I thought of hooking them up to dimmers and bringing them up slowly, but im not sure if the dimmers would do well in the temp. (11 degrees supposedly, got to love Rochester, NY weather). One Pack is a AMDJ deal and the other is some AMDJ rip off. Thanks in advance, Will Kent Owner/Operator/LD Kent Production Services www.kentlighting.cjb.net ------------------------------ From: roguerpj [at] mn.rr.com Subject: Re: Shingles Date: Wed, 26 Jan 2005 23:06:59 -0600 Message-ID: <9itgv09tsirva5vha4blpp4sksklghqcrb [at] 4ax.com> References: In-Reply-To: Every time I have done shingles I have done them with cardboard. rip to the with you want and then score with a radial arm saw.=20 They are light weight and cheep. The only real issue has been that they tend to curl when painted. This is fixed by gluing down both the top and bottom of the shingle. rob johnson freelance designer 629 Kenwood Parkway Minneapolis, MN 55403 612-702-4274 On Wed, 26 Jan 2005 22:02:30 -0500, you wrote: >For info, archives & UNSUBSCRIBE, see >--------------------------------------------------- > >There's always 1/8 or 1/4 luan. > >James Knipple >=20 >Technical Director >REP Stage - www.howardcc.edu/repstage >Student-Alumni Arts - Howard Community College=20 >- www.howardcc.edu/studentarts >jknipple [at] howardcc.edu >410-772-4451 > >> I need to cover about 144 sq ft of roof with >> what looks to be shingles. =20 ------------------------------ Message-Id: In-Reply-To: References:

Date: Thu, 27 Jan 2005 01:27:24 -0500 From: Michael Feinberg Subject: Re: Dance Floor Roll Diameter >>My answer checks out using a formula I found on the web that says >>Length = [Pi*(number of wraps)*(outside diam+inside diam)]/2. >>According to that, 270 wraps would be 1700' of floor, which is >>approximately what my spreadsheet says (though the difference is >>greater of 270 then 136). Hmm, 270 equals 135*2, I wonder if Sam >>mistook the diameter for a radius in his calculations. > >It seems to me there are too many unknowns in your formula. > >How do you work out the number of wraps and the outer diameter of >the roll at the same time? In order to solve this you have to know >more than the original question offerred. Or am I missing something? No you're not missing anything, there are too many unknowns to solve for number of wraps directly. I just used it to check my answer once I had generated it with the spreadsheet. The relationship of length to number of wraps was the same for my spreadsheet as the formula, giving me some confidence that my spreadsheet was correct. The formulas came from http://www.newton.dep.anl.gov/askasci/math99/math99015.htm and was found doing a google search for "spiral length." Hmm, actually you can use the above formula. {(outside diam)=(inside diam)+(2*thickness of layer)*(number of wraps)} which you can substitute in and get a quadratic equation in terms of number of wraps: {Pi*t*N^2 + Pi*d*N - L = 0} where t is the thickness of a layer (.06"), N is number of wraps, d is the diameter of the core (8") and L is the length (6888") I don't feel like doing the algebra to generate a symbolic solution to the quadratic equation, but solving numerically gives 135.7 wraps, so that also checks out. This formula is also a bit simpler than the one based upon Stuart's girlfriend's work, which when corrected adds the terms Pi*t*N + Pi*d to the previous equation. These will slightly improve the formula's accuracy but for the given values barely make a difference (135.1 vs. 135.7 wraps) and greatly increase the complexity of solving the quadratic equation symbolically. I already worked that one through earlier this evening though, so if you really want a universal formula for the final radius, it's: {r(L)=r+[-tp-2pr+sqrt(t^2p^2-4tp^2r+4tpL+4p^2r^2)]/(4p)} where p=Pi=3.14, r=radius of core=4", t and L as before. This gives 135.1 wraps and a 24.2" diameter which agrees with my spreadsheet. Of course the spreadsheet took 30 seconds to create and working through all the algebra on paper took 30 minutes.... Aren't computers fun? :) Enough time spent on this problem. :) Goodnight. -- -Michael Feinberg, CTS ------------------------------ Message-ID: <003401c50439$be337ee0$0600000a [at] BRUTUS> From: "Jon Ares" References:

Subject: Re: Falling sheaves of paper Date: Wed, 26 Jan 2005 22:30:50 -0800 > I seem to recall that we went with the lots of apprentices in the rafters > solution. Yeah, and I'd go with something like that if we weren't performing this in a PAC with no grid, and only battens on underhung sheaves. :) -- Jon Ares Program Director, West Linn HS Theatre Arts www.hevanet.com/acreative www.wlhstheatre.org ------------------------------ Message-ID: Date: Thu, 27 Jan 2005 01:23:29 -0800 From: Mat Goebel Reply-To: Mat Goebel Cc: theatre-sound [at] listserv.aol.com (theatre sound) Subject: Lightweight Clearcom Headset I have finally completed a project several years in the making. http://www.matgoebel.com/headset/headset.htm An uber-cool lightweight headset that works on clearcom. Probably far too labour intensive for those of you purchasing for facilities However, if you're an individual like me who values their comfort on intercom, it's time well spent. Input much appreciated. -- Mat Goebel Cell: 510.693.1448 ------------------------------ Message-Id: In-Reply-To: References: Date: Thu, 27 Jan 2005 09:46:24 +0000 From: Dorian Kelly Subject: Re: Lights And Cold Weather >For info, archives & UNSUBSCRIBE, see >--------------------------------------------------- > >Hey All, > >I have to light an outdoor skating rink on friday. I..... >Will Kent Experience of touring to Ice rinks suggests the following: 1) Wear six pairs of sccks, a hat, gloves and some boots if you are the one stitting still at a desk while others can move about. Take a piece of carpet. 2) DONT lay your multicores direct onto the ice: They will be impossible to remove at the getout. Stand any light stands on matting. 3) Make sure there are lots of blankets and warmed but not hot drinks in the wings. Dancers work themselves into a sweat on stage and then suffer terribly in the wings with sudden temperature changes. 4) Your lights and dimmers will be fine. Just prewarm them. You dont say what desk you have but just keep an 'everything at level 1.5' cue going. 11 degrees - is that farenheit? thats cold! Dorian Kelly ------------------------------ End of Stagecraft Digest #274 *****************************