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Author Topic: Tool Offsets  (Read 1650 times)

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Tool Offsets
« on: November 15, 2014, 02:25:48 PM »
Hi everyone

Can anyone please shed some light on tool offsets for me. I have a boxford slant bed lathe with a 8 station tool turret. I have finally got the tool change operation working right thanks to a lot of help from "Hood". My machine has a home switch on all three axis. What I am struggling to understand is the Z offset. With most tools on the X axis you can slowly Jog down to a work piece and touch off to get the offset. With the Z axis how do you position it to be 100% accurate. With some tools it's easy to touch the face of a work piece but with a lot of tools EG (Left and right hand tools, threading tools, tools with large radius) I can't see how you would do this accurately.

Please excuse me if this is a silly question but I am new to cnc and learning all the time. I would really appreciate any help.


Offline Hood

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Re: Tool Offsets
« Reply #1 on: November 15, 2014, 03:23:28 PM »
See if this vid helps, it was initially meant to be one of a two I was going to do but have never got round to the other. This is without limits on the machine but the principal is basically the same.

Re: Tool Offsets
« Reply #2 on: November 15, 2014, 04:42:42 PM »
Hi Hood
Cheers for that just got back from having a curry and some beer so will have a look in the morning!