Author
|
Topic: ST-1200 chewing while threading
|
|
|
|
|
Mathew James
Jedi Master Film Handler
Posts: 740
From: Hamilton, Ontario, Canada
Registered: Dec 2014
|
posted December 12, 2014 02:10 PM
Interesting how it is basically starting at the left tip and chewing mostly on the left sprocket hole side. If you happen to see it happening when you feed it in, is it happening on the first sprocket just past the auto-thread opening, or is this happening after the sound head when it goes to the underside sprocket? My hunch i it i happening right at the start before you even get to the gate. I wonder if loosening the screw on that sprocket, re-centering the sprocket gear and retightening the screw would help. It can't hinder if it is already chewing, but i would obviously use an old reel you don't care about.... My St1200HDM, so far, is doing pretty good.... I haven't chewed any film yet but did have one time when the film, after passing the sound head, didn't go into the guide but found a way through but i caught it quick and reversed before any damage. No matter how many positive experiences i have, i still seem to always keep the side open and watch, just in case because it just takes that one time to put me on edge.... Hope someone chimes in to help you! Matt EDIT: Vidar beat me to the post...but my comments may still apply.Cheers.
-------------------- -- Cheers, Matt 📽
| IP: Logged
|
|
|
|
|
|
|
|
|
|
|
Andrew Woodcock
Film God
Posts: 7477
From: Manchester Uk
Registered: Aug 2012
|
posted December 16, 2014 12:06 AM
Barry, quetion 2 that I put to Vidar was whether or not the threading shoe was locking down.
As Vidars machine cannot get beyond the first sprocket without chewing the sprocket holes on the film, it cannot be that the shoe or "auto lever" as you are naming it, can be sticking in the downward position because this would only cause a problem once the film has made it to the take up reel and has not released the shoe as the electro mechanical mechanism should.
At the point where the machine is chewing film, ie the top sprocket, you want the shoe to be in the lowered position so it will thread correctly.
Unfortunately, in Vidar's case, this isn't happening as it should, but from what he describes, the shoe is at least going downward into it's correct locked threading position. [ December 16, 2014, 02:44 AM: Message edited by: Andrew Woodcock ]
-------------------- "C'mon Baggy..Get with the beat"
| IP: Logged
|
|
|
|
|
|
|