|
|
 
|
|
Author
|
Topic: Strong Lense Turret
|
|
|
Monte L Fullmer
Film God
Posts: 8367
From: Nampa, Idaho, USA
Registered: Nov 2004
|
posted 03-05-2007 03:06 AM
What breed of Simplexes do you have? P-1050's or Milleniums?
TU-2000 turrets aren't the best animal ever created, but I cant say much since I have to babysit 24 of them, and some that had the same condition, so here goes:
1st - around the turret ring there are three small bearings, and usually the lowest one will blow a tire due to the weight of the turret disc. One takes an 1/8" allen to take out the allen on the side. Then, take out the allen stud that has the bad bearing and with the disc play, you can remove that bad bearing and replace it with the new bearing. Then just tighten up the two allen screws.
2-the top bearing is on an eccentric shaft to where you have to do is loosen up the inset allen setscrew on top of the turret, and then take the larger allen and turn that screw to raise or lower the bearing down on the disc so that slight contact is made so to make the turret disc have full contact with the other two bearings.
3-If bearings and disc are solid, then it's the lens holder itself that is your problem. on the right side of the lens holder, there is this strip of spring steel that rests against the horizontal adjustment shaft (and this shaft loves to lose its spring after awhile where one had to rebend that spring steel downward a bit, with the lens assembly out of the disc), and if this spring steel strip is loose, this'll cause the lens holder to flop around since there is no tension to hold it..
Like I say, TU-2000 turrets arent the best, but if you got an bend for mechanics, you can make these turrets work the best for you..
good luck-Monte
| IP: Logged
|
|
Tristan Lane
Master Film Handler
Posts: 444
From: Nampa, Idaho
Registered: Feb 2002
|
posted 03-05-2007 10:45 AM
Monte,
Based on his description, I would think he is referring to TU2020 turrets. The lens barrel on the 2000 turrets is pretty solid and rides on one large steel shaft. He mentioned two.
I think he has the same problem almost any 2020 turret will end up having over time.
Paul,
First off, what model of projector is this?
On newer versions of the TU2020 the lens barrels were fitted with two set-screws that applied pressure to one side of the housing, literally squeezing the part that rides on the two steel rods together and tightening up the slop. I'm assuming you don't have these adjustments, or you would have noticed them and adjusted them.
If it's an older version of the turret, there's not much you can do to remove the barrel movement, other than by removing the lens barrel, loosening the two screws that attach the rods to the lens plate, and spreading them out with what little play the mounting holes allow. Then, test fit the barrel assembly.
If all else fails, you can insert wooden dowel material between the rod and the housing (think q-tip). This will temporarily alleviate the problem until the wood gets compressed again.
This is my biggest complaint with these turrets.
| IP: Logged
|
|
|
|
|
|
|
|
|
|
All times are Central (GMT -6:00)
|
|
Powered by Infopop Corporation
UBB.classicTM
6.3.1.2
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.
|
Home
Printer-friendly view of this topic