Hi All, would you believe I’ve got an unused Smoothieboard from the Kickstarter campaign that I’m just beginning to set up ??
With the project that I’ve begun, I need to add a fourth motor to a Cartesian machine running in core X-Y mode. I know that I could probably use the E1 output for the motor but I would actually like to keep both the extruder outputs as they are for a dual extruder option later. I really need a separate motor output and an end stop for this modification. From what I’ve already researched, it appears that I can’t utilize an unused end stop, is that correct?. This motor would be run off a set of commands in the start script. Thanks in advance for any suggestions
One or two person a year are in your situation with finally getting to a kickstarter board
You can use any “free” pin to wire an external driver, see the documentation. See the “6axis” page too for additional axes if that’s what you need. Or maybe a second extruder would work better in your case.
Were you able to get this working? I’m trying to do something similar (run another device off a 4th axis (A), can’t use it off of an extruder setup because I need endstop/homing functionality and extruders have no sense of those. The documentation for multi-axis configuration implies you cannot have extruders if you do more than 3 axes…( /blob/edge/upgrade-notes.md: “In order to use there should be no extruders defined. This is being tested in CNC mode, it is not currently known to work for extruders.” )
