Workholding - 19mm Wheel Blanks

[Vinny]

I had a bunch of plastic gears that needed to be faced off. I made pot chucks (out of plastic but you can make them out of anything) and used them to hold the gears. My suggestion would be to make pot chucks with a straight shaft to hold in an ER32 collet then use a hose clamp to clamp the part in the pot chuck. At least I'm ASSUMING this will work, I'm sure someone else will chime in if it won't. I don't know how much clamping power is needed to hold these things during machining. I can see pouring some sort of resin or something that holds them in a block like the pic you posted earlier, but I'm not sure which material I'd use for it due to the clamping power comment I made above.