Gallery, Projects and General > How to's

DTI Repar part 4

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mosey:
John,
You seem to me to use a large amount of force to lock your tool in the spindle. Could you comment please?
Mosey

doubleboost:
Hi
Are you referring to the milling machine
I like to tighten things up properly but not to tight
The draw bar key only has a short handle
John

Arbalist:

--- Quote from: mosey on July 18, 2013, 05:16:20 PM ---John,
You seem to me to use a large amount of force to lock your tool in the spindle. Could you comment please?
Mosey

--- End quote ---

I noticed that as well. Plain collet nuts need a little turn to undo but nothing like that normally and the ball bearing ones I now use far less than that. In fact for some operations on small stuff I can get away with tightening and undoing by hand!

Talking about the lathe here, not the mill.

mosey:
Actually, I'm talking about both. How much is right for the mill when using ER collets?
Mosey

doubleboost:
I use R8 collets in the mill
The way I tighten mine I have never had a cutter "slip turn" in the collet
Same with the ER in the lathe
I tighten nuts and bolts all day for a living
I think it is just a feel you get for things
Using a standard ER spanner I think it would not be possible to over tighten the chuck
Thanks for the interest
John

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