Zeroing to the center of a bore
- rogerfries
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17 Jul 2021 23:20 #215187
by rogerfries
Zeroing to the center of a bore was created by rogerfries
Hi everybody,
I'm a hobby CNC user with very little time for my hobby, so I go sometimes months between using my machine. I Used to run Mach 3 and I converted to Linux CNC a while back. I was trying to indicate to home my machine in the center of a large bore. In Mach i'd zero one side of the bore, then touch the other side then key in /2 to get the center on that axis. I could not seem to figure out how to do this in linux cnc, so I was with a calculator doing the division and that would work, but one time i screwed up and did'nt type in the - sign, then I issued the G0x0y0 and destroyed my Haimer. Bad day! Anyway, I'm not ready for fancy probing stuff yet. What is the proper way to set the home position to the center of a bore using a edge finder?
Thanks
I'm a hobby CNC user with very little time for my hobby, so I go sometimes months between using my machine. I Used to run Mach 3 and I converted to Linux CNC a while back. I was trying to indicate to home my machine in the center of a large bore. In Mach i'd zero one side of the bore, then touch the other side then key in /2 to get the center on that axis. I could not seem to figure out how to do this in linux cnc, so I was with a calculator doing the division and that would work, but one time i screwed up and did'nt type in the - sign, then I issued the G0x0y0 and destroyed my Haimer. Bad day! Anyway, I'm not ready for fancy probing stuff yet. What is the proper way to set the home position to the center of a bore using a edge finder?
Thanks
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20 Jul 2021 11:28 #215403
by andypugh
Replied by andypugh on topic Zeroing to the center of a bore
If you are using the Axis interface (and some others) you can type mathematical expressions directly in the touch-off box.
It's not as good as a /2 button, but it works.
ie, if the X shows -1.234 then you can type -1.234/2 in the entry box.
You can also link a hardware button to do the same thing, see this thread:
sourceforge.net/p/emc/mailman/emc-users/...ans.com/#msg37319935
It's not as good as a /2 button, but it works.
ie, if the X shows -1.234 then you can type -1.234/2 in the entry box.
You can also link a hardware button to do the same thing, see this thread:
sourceforge.net/p/emc/mailman/emc-users/...ans.com/#msg37319935
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