I'm sure some of you clever folks could do this in your sleep. . .
As the title says; I would like to include 2 buttons to forward and reverse the extruder motor.
This would be used for loading filament, not printing.
I sort-of know the G code commands I need to send. I think I can figure out defining a pair of pins.
I'm not quite sure;
What pins are free for RAMPS EFB set-up to use and where to access them on the board.
Where in Marlin I would need to put an 'IF'-'THEN' type statement and its proper syntax
What files I need to modify - pins/ config
Maybe this should go in the RAMPS thread. I have searched for similar posts but not found any.
I know I can do this jog/ retract thru the LCD controller.
(My LCD is in one corner of my cube shaped printer and my Bowden extruder drive is in the opposite. Its a 'race against time' between setting up 'prepare-menu-move axis-1mm-extruder' then going round the back and feeding in the filament while feeling around for the LCD encoder before the LCD menu reverts to the status screen!)
I could add an LCD menu shortcut to move extruder, or I could increase the delay before the Status screen reverts but it would be nice for me if there were a couple of buttons close to the extruder motor I could use.
Has anyone done similar or any suggestions?
(. . . and if that button could accelerate the speed the longer it was pressed - that would be nice, but not essential)
Hope you can help.
-Alan
