End mill won't sit square in collet

Discussion on all milling machines vertical & horizontal, including but not limited to Bridgeports, Hardinge, South Bend, Clausing, Van Norman, including imports.

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whateg0
Posts: 1114
Joined: Sat Mar 28, 2009 3:54 pm
Location: Wichita, KS

Re: End mill won't sit square in collet

Post by whateg0 »

All the commentary about the collets is moot until the run-out in the spindle is addressed.
Profkanz
Posts: 6
Joined: Mon Dec 04, 2017 9:14 am

Re: End mill won't sit square in collet

Post by Profkanz »

Based on the video of the machine on the company web site, I would strongly suspect that the spindle is at fault. Either the locating taper is off or the spindle itself is bent. The only other possibility is a defective collet. The tram of the machine is irrelevant to the effects you are seeing.
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