AutoLeveller cutting too deep

[westinbrodey]

Hi,

I'm a first time user of AutoLeveller software. Using the software modified gcode, the cuts are way too deep (~.5-.9mm). I have dug as deep as I could into the problem, but I'm stuck as to why this is happening.
Looking over the linuxcnc documents, i found and used (PROBEOPEN probelog.txt) along with (LOGOPEN, log.txt) & (LOG) commands to dump out what is going on in the probing section of the gcode. What i found is that all the probed value z is positive (.2 to .3 range), while the saved #50X values are negative (-.5 to -1mm). If I stop the program after the initial z setting @ 0,0 and give g0 z0 command, I get an warning that the probe has tripped on non probe command, so I think the values in the probelog.txt is correct.
It seems to me, the problem is the cnc machine is stopping way past the probe contact on the G38.2 command instead of at the probe contact. I see little holes where the probe points dig in, so I have tried to reduced the max velocity and acceleration, and now the machine stops at the -1mm (setting I used for max z depth). All the #50x values are -1! (It made the problem worse.)
Any idea what I can do? Any settings in linuxCNC that I can try to get the machine to stop at probe contact? Is there too much delay on one of the settings? Do i have some persistent g code that is active, that shouldn't be?
One workaround I'm thinking of trying next is to try to save the probe z value(#5063) instead of the current z values(#5223). If this works, I guess I can do a global search and replace on the gcode.... I'll have to live with the holes left by the probing since I do a indent on the pcb on the spots that was probed...

Please help.

I didn't find the right solution from the Internet.

References:
viewtopic.php?t=114
Corporate Promo Examples

Thanks

[daedelus]

You definitely should not get any dent so it sounds like the probe is not being tripped whenever the probe contacts the surface and instead continues to the default -1mm depth which is what is causing the dents.

This may sound a stupid question but are you positive the probe is set up correctly? http://www.autoleveller.co.uk/cnc-probe-guide/

Check the probe-in signal is triggered correctly