[llama]

Thanks to lots of help in an earlier thread of mine I have done some reasonable viewing on this machine.

However, I still have the problem of jerkiness. The machine pulls through enough film to display, creating a loop, and when the loop is used up it pulls through another tranche. As it snatches this new loop the image jerks. It is bad enough to be annoying.

If I manually feed the supply spool to keep a constant loop there is no jerking but I can't be doing that for 40 minutes!

There doesn't seem to be any back-tension so maybe a light felt brake would help - however, that would mean the spool being jerked every frame which sounds like it might be a bit hard on the film and the projector's claw.

Any other ideas, please?
Graham