I’ve finally made it through my XL upgrade build, and during this homing switches were added. When I open up carbide motion, it shows homing switches setting as “true” in yellow (what does the yellow mean?), but when I try and home the machine for the first time, it then says “Grbl Error: Setting disabled”, then lands me on a screen that says homing, no where to click until I force quit the program and start over.
Gbrl v.9
CM 3.0.366 (downloaded today)
Do I need to be sending the settings directly to Grbl, even though it looks like the controller knows it has limit switches? What did I miss?
Also slightly related I am trying to set the new X limit and I’m not having a lot of luck. I’ve tried sending $130 = 850, but it doesn’t seem to register in carbide motion, so I think I’m missing something there as well.
Thank you, that got my into my first homing cycle, but as X moves left and should trigger, it just hits the end and tries to keep going. If I push the switch first before moving it says switch hit (shouldn’t it go to the next axis?)
Is there a way to easily check the status of the switch at any given moment?
I also saw a debounce setting, and saw 5-25 milliseconds is usually good, the S3 default is 25.
Also, where exactly should the switch be hitting on the end of the x axis? Mine currently hits on the “nut” part of the belt tensioning bracket.
Thanks again for your patience with my questions, one of these days I’ll have my machine running again
Easiest way to check a switch is to press it — there’s a light on the control board for each switch/axis which will then light up.
Ideally the switches would hit against the plates — one loses travel distance if they hit against the hardware bits — you should be able to loosen the parts in question, pull/push the switch into the desired alignment, then tighten things up. Some folks have sapped the switch to the opposite side of the plate.
Alright, so I replaced my bum switch, but I’m still having an issue. When doing the homing, X moves toward the left (x-) but does not stop if I push the switch. I see the LED light up on the board, confirmed that it was the X switch light that was lighting up.
Any ideas? Am I still missing a setting? The settings page in CM shows homing enabled.
Silly questions here… why is your X homing to the left? I believe the S3 homing switch for X mounts on the right side and GRBL homes “right, back, up”. Do you have an axis reversed somewhere?
If the machine doesn’t move in those directions, but one is sending those commands, the axis is reversed. Possibilities:
Z — carriage plate installed upside down (static pulley should be on the left)
Y — motor connectors reversed — power down and swap them
X — motor is mis-wired — check the connectors against the other wires and if not matching use a small tool to pop out the connectors and make them match — stepper motors may be reversed by:
swapping either the left or right pair of wires
swapping the left pair of wires with the right pair
reversing all four wires
If the above doesn’t address things, please let us know at support@carbide3d.com and we’ll do our best to help.
Just to close the loop on this, I figured out via pushing all of the limit switches during the homing process that my X and Z connections were switched, which explains why X was moving in the negative direction.
Also Z homes first, then X and Y move simultaneously to home. Had I known this order it would have also pointed me in the direction that I had two connections switched.
Now to get my machine squared up better now that it’s moving properly!
