ER32 Collet Chuck for Proxxon PD 400

[Wongster]

Thanks guys. Just got home from my last appointment and the first and only meal of the day. Feeling tired but happy that I had a productive day in the office.

Dave, Ed: I'll take note of your suggestions on the C/Bores. Will leave that to later. The bigger clearance holes and C/Bores were suggested by another nice gentleman over at Madmodder via pm. He shared that having them bigger allow the recess to sit if I can't get the holes line up. This makes lots of sense for me as I have the tendency to mis-drill a little so much so that one of the holes doesn't line up.

Dave, I don't have such big drill. Biggest I have is a 14mm which I had problem using previously. Back to drawing board?

Mayhem, Rob: that was the original plan when I first discussed with several people off and on list. My consideration is, the steel piece is too big for my 3 jaw chuck, with the jaws reversed (about 84mm max). The 4 jaw is just about max'd out but I've no confident in getting the job centered with the rough "skin" still on.

I saw in some videos or articles that use a long piece of steel with a point to centre a big piece of stock in the 4 jaw. The DTI or DI is to be applied on the rod while adjusting the jaws. Maybe I can get a piece of silver steel, as it seems to be straighter than most that I encountered so far, and turned one end to a point while the other end in a drill chuck on the tailstock. Will this work?

No harm trying the various ways though. Some wastage of materials during learning is inevitable. Maybe I can get it close enough in the first couple of tries? :-)

Regards,
Wong