Hello. I've almost got my plotter up and running but am having some trouble with the servo. When running tests with a rather large Tower Pro MG995 it all seemed fine, but now that I am testing the pen holder/Z axis with a smaller one (Tower Pro MG90D) I'm getting no response at all. Any ideas?
Could be: Faulty servo Connector plugged in wrong way round Physical load too much for the servo, does it move when its removed from the mechanism?
Calibrate your Servo movements in Wizards and Tools > Calibration > Servo Also, servo is a Tool, not a Z axis. Z axis buttons controls a stepper motor attached to your Z axis driver M3Sxxx/M5/Pen buttons controls the servo
Thanks, yes I've just done that. But the Z- and + commands still do nothing and pen up is not available.
As it should.... Servo is a TOOL (same line as spindles, lasers, plasmas) controlled with M3 and M5 commands. It is NOT a ZAXIS. Try a reboot.
You do know there is just an icon of a "ban" sign over the pen to indicate Pen Up means it won't be writing though - it doesn't mean its disabled... Just eye candy to explain the button There's nothing in the code that enables/disables individual pen buttons. It just shows/hides that column (both buttons) from the table based on whether you are running Grbl, or Grbl-Servo firmware Click it and see it still works - sends the command in the Serial Console tab
Unfortunately not. When I give it a gcode file with servo up and down commands it doesn't do anything. But the wizard tool seems to communicate with it. I'll test another servo if I have one, though it would seem to work if the wizard can raise and lower it.
If the calibration wizard moves it but not your GCODE, make sure your GCODE contains the correct S values identified with the wizard
Ok. It seems to be working now - the wizard gave me an up value of 255 which was too much it seems. 229 works fine. Pen up also works now although it still has the cancel sign through it for some reason. Thanks for the great service!
