Bltouch not auto-homing correctly
Just installed the bigtreetech skr mini board and flashed marlin 2.0.7.2 bltouch version on it, when I hit auto-home it doesn’t deploy the touch at all, just goes all the way left and starts going down looking for the stop switch instead of going to middle of the bed and deploying the rod. What did I do wrong?
Posted Dec 23, 2020, 1:32 PM UTC
212
Does the BLtouch light up and deploy when you power the unit on? How did you wire it?
https://www.instructables.com/Install-BL-Touch-on-Ender-3-With-SKR-Board/
Yes, it does light and and deploy twice on start up. Just a plain red light though, I thought there used to be a blue light as well, I took a break from the printer for about two months before finishing this install so it’s been awhile but I thought there was a blue light in it as well, not sure if that has anything to do with it but any information I can give I guess.
It should be Blue when the pin is deployed and red when the pin is depressed. Sounds like something in the wiring is wrong.
Yeah I’m not certain what would be causing it.. I set it up according to instructions. At least I thought I did. When I go into the bltouch settings and hit deploy nothing happens at all, but when powered on it deploys twice just like it should.
Sounds like it isn't wired properly to the Z-axis stop.