Hello all - I'm wondering what the solution is for this: I post process using latest OB Fusion360 post processor and probably 4 out of 10 jobs when I start, the Z Axis would go all the way up (+). Once in a while the Z axis would go the opposite direction. This behavior exists in using the Interface or OB Control. I tried setting X/Y/Z zero before and after loading job, same results. Is this a Machine WCS issue? Any ideas I can try to prevent this crash? Thanks - Tony
Hey Alex, It looks like I'm not homing the machine properly. Is there a way to create a homing sequence macro on the Interface?
Sorry, I don't use the interface (I'm familiar with the post processor), but I'm sure one of the experts here will answer that fairly soon. Alex.
Another Post processing question: In Post processing settings menu do you check the 'Use machine configuration' and check 'Use Machine Coordinates (G53) at end of Job? See attached pic. Is there any other fields need to change to make it work correctly? Thanks Tony
Putting 5 for Z end is also a problem. It needs to be a negative number since its using g53 no matter what. So, even if you home correctly, you'll get an error or hit your Z limit switch at the beginning of the job.
'Use machine configuration' may help or hinder, depends on what you set up in Fusion as your machine configuration. I would leave it off unless you have carefully set a machine configuration. 'Use Machine Coordinates (G53) at end of Job?" set this on if you want the machine to return to machine X0,Y0 at the end of the job (or the co-ordinates you set). Set it off if you want to to just stop wherever the Gcode stopped, in both cases it will raise Z to 'end of job Z position' which MUST BE NEGATIVE to avoid hitting the Z home switch. Your image shows a positive value which will raise Z until it hits the limit switch. Is this the 'not working correctly' you are trying to solve? G53 moves rely on having a proper home. Always home after turn on or error reset. Hover your mouse over each of the option items to get a popup help for each item.
Hello all, Thanks for all the help suggestions! Unfortunately I'm having slight mis-understanding on ''WCS" and "MCS"...thought they were the same!! Lots to learn and play with so again thanks for the support. I don't have limit/home switches installed yet so got to fake home for a few weeks. Tony.
MCS = Machine coordinate system = set by homing = G53 = where the machine is WCS = Work coordinates = set by Zeroing, probing or G10 command = G54 - G59.1 systems = where the stock is WCS is just an offset from MCS
