[Khalid]

If one has runout in the Quill Collet of Milling machine... Beside, preciosion what can be the repurcussion??.. I have 0.15mm runout at the tool tip, i just need to know beside inacuracies what are other bad effects?

[HuFlungDung]

Angry boss, indignant customers, loss of reputation, loss of job

[Khalid]

Hi,
My boss will never angry because i am the boss and i have ZERO customers and no repu.....What i will loose is my hair...i will soon be bald if i never get the right answers..

[Geof]

But if you are bald then you will not be hot headed and angry.

Apart from loss of accuracy when a cut is running out the cutting edges are not cutting evenly. For instance if your feed is 0.01mm per tooth and the runout is 0.1mm obviously only one side of the cutter is making contact with the work and if the cutter has four flutes this side is taking a cut which is 0.04mm so the cutter may break.

[Khalid]

Geof, agreed .. I hate front hair falling, it seems an Airport runway on the head..

Collet runout may be the main culprut of my new endmill breakage.. I will post some more results tomorrow.. I will pocket out some Circle and will see the impact of collet runout on the pocket dimensions...

I have backlash enabled in Mach3, i will also check if the pockets are circular or not..
Thanks for answering