Questions about probing and reference
- karnalta
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05 Nov 2023 15:30 #284634
by karnalta
Questions about probing and reference was created by karnalta
Hello all,
On my machine, I have a tool height setter and a 3D touch probe (I am using QtDragon_hd UI).
I do understand how to set my X and Y axis relative zero (G53). It's just a matter of using one the numerous touch probe possibility of QtDragon to touch off X and Y.
Where I am lost is for my Z axis relative zero. I know my tool setter height, I can touch off the machine's table and I can touch off the top of my piece. So every data is there to know the relative zero each time I change tool.
But how do I do ? Is this something general to LinuxCNC or is it specific to UI ? Is it just a matter of entering a few specific GCode command ?
Thank for help.
On my machine, I have a tool height setter and a 3D touch probe (I am using QtDragon_hd UI).
I do understand how to set my X and Y axis relative zero (G53). It's just a matter of using one the numerous touch probe possibility of QtDragon to touch off X and Y.
Where I am lost is for my Z axis relative zero. I know my tool setter height, I can touch off the machine's table and I can touch off the top of my piece. So every data is there to know the relative zero each time I change tool.
But how do I do ? Is this something general to LinuxCNC or is it specific to UI ? Is it just a matter of entering a few specific GCode command ?
Thank for help.
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- andypugh
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20 Nov 2023 10:45 #286014
by andypugh
Replied by andypugh on topic Questions about probing and reference
One way is to define your touch probe as a tool of length zero. Then all other tool lengths become offsets relative to the probe.
Make sure that the tool-table entry for the probe tool number (mine is 99) is always zero (it's very easy to accidentally load an offset, but that can be removed by an MDI G10 L1 Z0 command).
Then use "set origin" when the probe is in the spindle and "set tool" when the tools are in the spindle.
Make sure that the tool-table entry for the probe tool number (mine is 99) is always zero (it's very easy to accidentally load an offset, but that can be removed by an MDI G10 L1 Z0 command).
Then use "set origin" when the probe is in the spindle and "set tool" when the tools are in the spindle.
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