Hi,
There are couple things that i dont understand in surface mapping, if anyone can help me understand i will be glad;
I am trying to make surface mapping work for PCB engraving, i can map the surface and when map is loaded i can see the automatic adjustment in Zth axis within the mapped area during jogging and gcode running.
Machine homes in place and for the test, 150mm x 150mm area mapped, with 5mm resolution in both axis, zth axis adjustment precision during jogging was within 4 microns. Machined PCB was 100mm x 100mm and gcode prepared in HSMWorks.
First problem; after loading the map and when i close the plugin window, the zth axis jumps up suddenly, this move is so strong it shakes the 4 Ton machine,
second problem; when axises move outside of the mapped area zth axis again jumps up suddenly, it does not ramp up as it does in the youtube video,
third and the most important problem;
i can not zero the zth axis correctly, when i use the same tool(or when changed the tools) to zero it on the PCB from the touch off UI, it displays 10.77 in the Zth axis DRO instead of 10, i dont know where this 0.77mm is coming from. You can see the values i enter to the touch off UI in the attached image, when the touch plate is the actual plate(which is PCB) the plate height should be entered 0 and the retract height is 10mm after probing so, DRO should display 10mm after probing right?
What am i missing in here? does surface map plugin adds the measured value during mapping at that coordinate to the probing result? If so, its not good. Because of this i can not carve the PCB correctly, the value it should dive in to the PCB is -0.04mm but it enters way more than that and cleans up all the paths. I cannot fix it by altering the 0 point from the DRO, i cannot find the exact error and not sure if it is 0.77mm.
I am sure there are things that i dont understand about the concept of surface mapping, if anyone can help to correct those problems i will be glad, thanks in advance.
Regards,
Hakan