my profile | my password | search | faq & rules | forum home

» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » How steady is your projector? Quantitatively. (Page 2)

This topic comprises 2 pages: 1  2

Author Topic: How steady is your projector? Quantitatively. Carey Barber Expert Film Handler Posts: 143 From: Newport News, VA, USA Registered: Jan 2003 posted 05-22-2008 09:27 PM                     So, do you generally use a full 15-20 minutes worth of test film on a reel? (Sorry, if I am beating this to death, but I know that just 100ft of that 35PA is very expensive...I cannot imagine being allowed to purchase over a thousand ft.)  |  IP: Logged System Notices Forum Watchdog / Soup Nazi Posts: 215 Registered: Apr 2004 posted 08-08-2010 05:08 PM                 It has been 807 days since the last post.  |  IP: Logged Jason Metcalfe Expert Film Handler Posts: 134 From: Austin, TX, U.S. Registered: May 2010 posted 08-08-2010 05:08 PM                     Our Simplex Millenium has recently started to exhibit more horizontal movement and I'm having trouble determining the cause. I've tightened the two screws that attach the gate support to the housing and also tightened the screw on the intermittent shoe pad and had a little success but there is still some movement. We've only really had problems with vertical movement in the past so this problem is a bit foreign to me, I wanted to see if anyone had any ideas.  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 08-08-2010 06:28 PM                     For what its worth, this is how I setup my loops. You can run them for hours and never put a scratch on them. Also when you are done running it, you can unthread it from the higher of the two rollers you see in the top picture and let it rest out of the way on the lower roller.  |  IP: Logged Randy Bowden Expert Film Handler Posts: 146 From: Portland, OR, USA Registered: Aug 2000 posted 08-08-2010 06:46 PM                     Jason, check your lateral film rollers in the top of the film trap. The inboard roller should push in and spring back easily, also the entire roller set should not be sloppy. Check for endplay on the star collar as well.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 08-08-2010 07:21 PM                     Funny is that on one Simplex "XL" (same as the Mil2000) that I had to go service this last spring, is that the INT assembly was loose in the framing cam-the two assembly locking tabs were loose where the assembly would actually move in and out during operation causing the same horizontal weave issues. Also, the end collar could be out of adustment (the "oil thickness" requirement between collar and the bracket) where there is excessive end play on the sprocket shaft making the sprocket shaft bounce in and out from the face of the cam. ..and I've seen gunk buildup on sprockets do somewhat the same thing ... If you want to see steady projectors, shove a loop of 35PA in either a SuperSimplex or an E7 ...  |  IP: Logged Eric Robinson Jedi Master Film Handler Posts: 538 From: Santa Rosa, CA Registered: Jan 2005 posted 08-08-2010 09:44 PM                     quote: Monte L Fullmer ..and I've seen gunk buildup on sprockets do somewhat the same thing ... Yes, I was asked to fix a projector with a very jumpy picture, turned out...all I had to do was clean the intermittent sprocket. Also, don't forget lens stability. If you got a crappy turret your lens holder might be vibrating, or your lens or lens elements could be vibrating.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 08-08-2010 11:35 PM                     Yes, I forgot about that allen screw that loves to come out of the center of those turret lock assembly on those Milleniums, for that will prevent a secure lockdown on the turret. Thx for reminding me on that one, for I used to make it a normal prevention method to check that allen screw when I would service Milleniums.. -Monte  |  IP: Logged

All times are Central (GMT -6:00)

This topic comprises 2 pages: 1  2

Printer-friendly view of this topic

Hop To: Select a Forum: Category: Operations -------------------- Digital Cinema Forum Film Handlers' Forum Large Format Forum Ground Level Feature Info, Trailer Attachments & REAL Credit Offsets Category: Community -------------------- Film-Yak Film Handlers' Movie Reviews The Afterlife Bob Maar's Joke-A-Thon Category: Classified -------------------- Equipment and Supplies Wanted/For Sale Help Wanted/Seeking Employment Category: System -------------------- Software Beta Testing Forum

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.