ER32 Collet Chuck for Proxxon PD 400

[Wongster]

Hello Rob,

Thanks for the trouble with the pics. I used the wrong word to describe the problem. The "rocking" feel is not due to the 2 surfaces not sitting properly but I think I've the recess a little too big. I was thinking about it while I was out - The aluminium gauge I did has to be pushed into the recess at the back of the 4 jaw chuck to seat. The fit is rather tight. So it could be that the gauge is a little bigger than it needs to be. I almost ran into my shop when I got home (just got home less than 5 mins ago) to confirm my suspicion; indeed, the gauge is 0.02mm bigger than the registration boss on the spindle flange. The boss measures 69.99mm but the gauge 70.01mm. I hope the 0.02mm wouldn't cause too much problem.

I like the transfer screws you did. I read Bob Warfield's blog on the making of his transfer screws. Didn't quite understand how he did the point which has smaller base.



I only know how to make it with base like what you shown in your pic. But the flats at the 2 sides is a

What were you doing in the pics? The piece looks like a saddle or compound slide.

Regards,
Wong