Setting stroke on Douglas Shaper

[Shawn]

So the new switch is wired up and everything is working. I was having some issue with the mechanism that drives the auto advance for the table being loose and much louder than I thought it should be. That was a simple fix though as someone had installed the taper pin in backwards. I cleaned the pin up and turned it around in the hole. My next issue I'd the sliding brass block that drives the yoke is quite undersized and does not return or advance the stroke without a gentle clank. Its probably 10 thou under sized on both side. My first thought is to use the original block which is taller than it is wide and cut it down for a 1-2 thou clearance fit. There wouldn't be as much surface area pushing against the drive arm but at least it will be tighter. Any thoughts on doing this? I figured if it didn't work I could always start from scratch with a proper sized piece of stock, just have to find one.



The sound in the video doesn't seem to be times right with the movement but I can see and feel the backlash in the sliding block. The ram stops at the end of the stroke then clunks as it get pulled back. It  does the same on the forward stroke. Any thoughts? Does my suggestion of turning the block clockwise 45 degrees and machining it down on two sides for a tight fit seem feasible? I'll try and stop at the scrap dealer tomorrow and see if he has some brass that might work as well. 








Cheers, thanks for looking
Shawn