Well then, you've always been wrong. (Must have gone to public school.)Derek I've always called them t clamps. ...
Okay, I strongly discourage my techs from panning the unit with the set screw. It is too easy to break the head off, it is very easy to pull all the way out and strip it putting it back in, it is easy to create grooves in the shaft which effect focus, sometimes it takes too long to het a wrench on it when you can do a yoke bolt focus with just your hands, eventually the bolt will not tighten fully anymore. There is a laundry list of reason not use it for focus.
So the minimum 1" long 1/2-13 yoke bolt that's 13 TPI is unsafe? During focus, rotating the yoke a max. of 45° L/R of center (1/8 of a revolution) will somehow cause the bolt to completely unscrew (min. 13 revolutions) and crash to the floor, causing immediate and painful injury/death to all occupants of the venue?
So the minimum 1" long 1/2-13 yoke bolt that's 13 TPI is unsafe? During focus, rotating the yoke a max. of 45° L/R of center (1/8 of a revolution) will somehow cause the bolt to completely unscrew (min. 13 revolutions) and crash to the floor, causing immediately and painful injury/death to all occupants of the venue?
How do you rationalize that using the yoke bolt for pan on a Mega-clamp IS acceptable, but not on a "__me nut"-equipped clamp?
There are many valid reasons for choosing to use one over the other, but I don't feel safety reasons are applicable in either case.
I guess I just can't envision that scenario, as I assume any rational person (even middle school graduate chausman) has enough sense to tighten the yoke bolt with a wrench if the fixture is loose enough that it won't hold its focus.... I can easily see a scenario where a fixture just gets tugged and tweaked for years and years. Gradually, that yoke bolt could work it's way loose and the fixture (which also probably doesn't have a safety cable in this school theater of doom) falls. ...
Well then, you've always been wrong. (Must have gone to public school.)
There's C-clamp, G-clamp, bar clamp, pipe clamp, Anderson clamp, Clancy clamp, gridlock clamp, hook clamp, Jorgensen clamp, trigger clamp, trim clamp, batten clamp, spring clamp, test clamp, amp clamp, hose clamp, and likely others; but no T clamp.
First off I have never broken a pan bolt in my 11 years of focusing, if you break one your probably doing it wrong.
So the minimum 1" long 1/2-13 yoke bolt that's 13 TPI is unsafe? During focus, rotating the yoke a max. of 45° L/R of center (1/8 of a revolution) will somehow cause the bolt to completely unscrew (min. 13 revolutions) and crash to the floor, causing immediate and painful injury/death to all occupants of the venue?
How do you rationalize that using the yoke bolt for pan on a Mega-clamp IS acceptable, but not on a "__me nut"-equipped clamp?
Is it the magic Belleville washer? (For the record, I think every yoke bolt should come with either a Belleville, or split lockwasher, but that's a (slightly) different discussion.)
There are many valid reasons for choosing to use one over the other, but I don't feel safety reasons are applicable criteria in either case. An electrician knowing when and where he/she has to apply a tool, and when not to, can make or break a focus session. It's easy and immediately apparent, to distinguish the beginners from the veterans.
Is this the same $1000 that you owe to either sblair, pathway, or some yet-to-be-identified un-indicted co-conspirator?... 4. I have $1000 in cash for the first person that can produce a professional stagehand who uses the setscrew at all. ...
From the Altman document http://www.altmanlighting.com/altman-lighting-stage-hardware/stage-accessories.pdf :About this time last year I was building 100 sidearms. I'm fairly certain that both the vendor and the manufacturer refered to that hardware item in dispute as " Tee, Sidearm "
Frankly when I googled t clamp I came up with pictures of what we're talking about. So call me wrong all you want but honestly we all hear new terms everyday.Well then, you've always been wrong. (Must have gone to public school.)
There's C-clamp, G-clamp, bar clamp, pipe clamp, Anderson clamp, Clancy clamp, gridlock clamp, hook clamp, Jorgensen clamp, trigger clamp, trim clamp, batten clamp, spring clamp, test clamp, amp clamp, hose clamp, and likely others; but no T clamp.
Yes you have to use the yoke bolt equivalent on a sliding Tee. BUT, you are using that product the way it was designed to be used. ...and I don't believe in rotating the sidearm I believe in rotating the entire vertical pipe.And BTW, how does one pan a fixture when using an Altman sliding tee? How would your TD mentor have done it, Gafftaper? Gee, there's no pan bolt, and Gafftaper told me using the yoke bolt was unsafe, so I guess I have to rotate the entire sidearm on the vertical pipe to pan the instrument. Oh yes, that's so much easier and safer! /sarcasm off
About $18 is the standard price for an ETC clamp online. Which is one of the higher priced C-clamps. Yes there are cheaper options many as low as $10. However, in order to make the point as fair as possible to the other side, I chose a higher end product at a non-package price.$18?!?!?!? You're paying too much! THIS BMI Supply carries Mega, Mega Pan, and standard C Clamps for $10-$11.
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