<p>Sorry for digging up an old thread but I wanted to put this here for future reference. I'm sure it will help another P11 owner. It wont make any sense unless you've seen inside a P11</p>
"My projector is also not working and you nailed the problem in one! The magnet that actuates and pulls the rubber roller against the drive shaft works but the rubber gear can't get any traction. I have tried adjusting the magnet actuator to the rubber gear exerts more force but it didn't work. I was hoping that because you knew what the problem was, you may also know of a fix?"<br /><br /><strong>Roelof replied</strong><br /><br />"Fortunately mine worked after cleaning the roller with brake cleaner (very agressive degreaser, not to be sprayed on you risk dissolving the roller completely . I sprayed the cleaner on a cloth and very lightly rubbed the roller. On one of my Linhof magazines that advances the film over a rubber roller I had to slide a piece of bicycle inner tube from a thin racing tube over the roller to get traction , perhaps you can buy some rubber hose and make do with that if the original roller is too far gone. Good luck fixing it , it is an awesome machine"<br>
<strong>My Solution</strong><br>
I tried both brake cleaner and a type of liquid used to stop leaks from power steering and transmissions (it works by swelling the rubber seals). Both of these did not work.<br>
The roller is 23mm in diameter and I could not source a small enough bike inner tube to cut up into rubber bands and fit over the roller. This would be the best option. Instead I cut the finger of some rubber gloves into rubber bands and stretched them over the drive roller. The rubber is not as good quality as an inner tube but it did work.<br>
After some use the rubber bands slipped off. I have now fixed them in place by bonding the rubber bands to the drive wheel with some rubber cement. It is now fully functional again<br>
And for completeness the "low-volume deep buzzing sound" that David heard is the electromagnet not fully engaging. This can be adjusted and may have been the fix for David's projector if the rubber wheel was still in good condition</p>
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i do have little bit different issue, the arms are moving bery slow if they move, only if i use lower button for focusing not the top one. Any advise ? Thank you Ed
Problem with Rollei P11 dual format slide projector
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i do have little bit different issue, the arms are moving bery slow if they move, only if i use lower button for focusing not the top one. Any advise ? Thank you Ed