Work with probe

First, I misspoke.  I store the length in the .ini file.

[PROBE]
LENGTH = 4.027841  <- Adjust this value as needed for your probe.

The only thing to see in the linuxcnc.var file is this.  You need to add the 4001 to 4008 lines to your file while LinuxCNC is not running.  Just use 0.000000 when adding them.  This is where the Z touch-off will be stored for each coordinate system G54 to G59.2.  Adding these to the file makes the values persistent.

4001    -9.902594
4002    -10.541490
4003    -9.413268
4004    0.000000
4005    0.000000
4006    0.000000
4007    0.000000
4008    0.000000
5161    8.526600
5162    3.196200
5163    0.000000
 

 

How do you preset repeatable tools?

I have a G-Code file that I run when I want to measure a tool and record the value in the tool table.  I also use a G-Code file to measure the tool setter.   I use inches so those I have tested but I also have files for metric but those have not been tested.''



 

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Wow,  The editor and quoting doesn't work very well anymore.

Yes right, told you I am and idiot that is semi obvious isn't it? I can measure exact tool setter set point easily. Why didn't this click in my noggin at the start.
Thanks mate that is the kick in the bum I needed.

cmorley post=229356 userid=482
I don't know for sure, but I wonder if he sets the 3d probe as a tool number and sets a Z offset for it. That offset would be set at the table surface (the same surface the tool setter is referenced from) then your 3dprobe is relative to the toolsetter.

The just touching the spindle on my vice I would like to avoid if possible. Have you seen what damage can 2KW servo do? I actually have and it does not really play nice and friendly game.   I just finished spindle rebuild, I would probably cry if something would go wrong and touched too much.
But the Cmorley's way seems the safest  in my opinion. If I understand it correctly it will give me relative Z difference between actual cutter and 3d probe. I will definitely give this a go both probes are spring loaded so what can go wrong 
I had to move the machine today so it is all disconnected, but when it is all back together I will be researching more.
 

myval wrote:

The just touching the spindle on my vice I would like to avoid if possible. Have you seen what damage can 2KW servo do? I actually have and it does not really play nice and friendly game. 

When I touched the nose of the spindle to the vise I was using a pendent and manually bringing the Z down one click at a time.  At the same time I was manually turning the spindle to feel when it started dragging on vice.  There was really no drama at all unless I dropped the pendent or something. I do understand the concern though.

Yeah I do it carefully too but I know myself I would rather keep it automatic and keep me and my short circuit brain out of equation as much as I can.
I think I will try the touching the table solution first (when I put the machine back together and finally source new PC) I think I can do less damage that way.