Thread: How to avoid tool runout with ER collet

Mat,
Seems this guy has the same problem you. Might give you some ideas for regrinding the taper:

https://www.youtube.com/watch?v=9Xmk...&frags=pl%2Cwn

Originally Posted by jack620

Mat,
Seems this guy has the same problem you. Might give you some ideas for regrinding the taper:

https://www.youtube.com/watch?v=9Xmk...&frags=pl%2Cwn

It's now solved. I ended up matching the taper of a collet block I had with the compound in my lathe, and remachining the taper on each chuck. The finish isn't too bad, but more importantly now I have much better runout spec. It's matching my measured spindle runout of 0.03mm.

Mat

Glad to hear that you've got it sorted out.
Kryn