13-03-2012, 10:36 PM
I've had a play and I'm afraid it's not positive 
First I machined the ends of the shafts, by the gears, nice and flat.
Next I turned down the end of a piece of brass bar to fit the indentation in the plastic, then parted it off to make a T-shaped (cross section) pad.
When I offered this up to the mouldings I was horrified to discover that the two halves don't actually meet in the area where the pad would fit. I can only think that there was too much shrinkage in that area. Anyway, I decided I might as well press on, which meant I needed to take a skim off the pad to get the thickness right. That was OK, but when I was taking it out of the chuck I dropped it into the suds tank, There's no hope of recovering it short of emptying it all out
I think I've had enough. I'm going to put it back together and stick it under the bench. If I ever have to drill a smallish hole in an awkward place it might come in, but I wouldn't recommend it to anyone.
Alan
First I machined the ends of the shafts, by the gears, nice and flat.
Next I turned down the end of a piece of brass bar to fit the indentation in the plastic, then parted it off to make a T-shaped (cross section) pad.
When I offered this up to the mouldings I was horrified to discover that the two halves don't actually meet in the area where the pad would fit. I can only think that there was too much shrinkage in that area. Anyway, I decided I might as well press on, which meant I needed to take a skim off the pad to get the thickness right. That was OK, but when I was taking it out of the chuck I dropped it into the suds tank, There's no hope of recovering it short of emptying it all out
I think I've had enough. I'm going to put it back together and stick it under the bench. If I ever have to drill a smallish hole in an awkward place it might come in, but I wouldn't recommend it to anyone.
Alan
