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This topic comprises 4 pages: 1 2 3 4
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Topic: New Christie P-35GP Pulley Kit
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Monte L Fullmer
Film God
Posts: 8367
From: Nampa, Idaho, USA
Registered: Nov 2004
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posted 10-23-2007 12:25 AM
(yea, did that once: did a 5 star rebuild with the shields on...didn't work too well since the drum had serious drag and the drag on the film would cause the lower snubber roller to pull up tight-and with it tight, started to seriously put base side scratches on the film. Found out to take the inside shields off, and wash out the grease inside the bearings with a solvent, then relubed the bearings with a synthetic oil so they'd spin a lot more free'er)
I remember V5's having doozie sorts of problems with the main belt loving to break when wanting to. But, I do think it had to do with the rollers that surrounded the INT assembly drive sprocket and the cheap aluminum sprocket wheels that would make the belts fail on a regular basis.
Yet, once in a while a motor drive belt would give out, but not as frequent as the main belt.
Why at first, I'd shy away from a belt driven machine compared to a gear driven like Simplex or Century..until I began to work with the P35 units and found that their belt path stucture was better to work with - just had to get used to the shutter drive belt.
-Monte
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Steve Guttag
We forgot the crackers Gromit!!!
Posts: 12814
From: Annapolis, MD
Registered: Dec 1999
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posted 10-28-2007 09:37 AM
quote: Mark Gulbrandsen
On another note at least Christie hasn't stood still on continuing refinement of film products as have other US projector mannufacturers. I think thats something to be said for a company that is way larger in the D-Cinema field than they are in film.
Ah and here it is...you seem to like to see continual improvement...very admirable, for sure. So because a manufacturer makes a product SO bad, it has to continually be improved to make it start to come up to par with other products.
Just what hasen't that projector hasn't be changed due to poor design? Seriously...what is original on that thing since the the P-35? What is the upgrade path? How expensive is it for an end user to have upgrading right along to keep it current.
Certainly the Simplex and Century projectors did evolve...over 50-100 years and changed models along the way...not just nudge it a bit here, a bit there.
They've changed most every part on the thing...a virtue to some...an admission of guilt to others. How many times have they fooled with something so simple as the changeover douser?...How many times have they fooled with the soundhead? Christ the Simplex 5-star....nobody's "proud" product designed in an era of mono sound (for optical) out tracked the Christie until maybe this generation some 30-years later...note, the 5-Star used the dreaded XL, "I'll pluck you a tune", belt style too.
The shutter...yes they improved it...20-years after the problem was identified. If a chain bought this machine (in quantity) with the bowtie blade...how much would they need to invest to correct such a glaring mistake?
Have the other US manufacturers put as much time and effort into improving their designs? Well no...they didn't NEED to...they did evolve them a bit...sometimes for better, sometimes for worse. Strong did bring out the Apogee...an evolution of the Simplex...with mixed results...the picture is darn steady on the ones I've seen. The sound portion still needs improvement. If film is still major player in exhibition in 20-30 years, then they'll have as much time as Christie to iron those kinks out.
If you want to talk about constantly advancing a machine...you really need to look at Kinoton...the FP20-FP30 line has constantly improved...from a very high starting point. They certainly are not perfect in all respects (I'm no fan of their turrets)...but in the actual presentation of the movie...everything seems to keep getting better. Their soundheads have improved too. But not from apologetic, "oops we screwed up" standpoints but from "we have something good, now we have something better."
It is no small wander you like the DCinema machines...they constantly need more $$$$ to improve them from their not-good-enough beginings. Except those will come with hefty price tags as new projectors replace old ones...not just blade kits or belt kits or pulley kits or soundhead kits or changeover kits or motor mount kits or....we you get the picture.
Steve
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