Bltouch Configuration Issue
-
@wepaking If i pull the pin manually and push it back in it doesnt retract automatically and it also does not go into alarm either.
-
@wepaking said in Bltouch Configuration Issue:
but if i touch the bltouch gently when it is deployed it will go into an alarm state.
Well that's kind of normal. It's not meant to be touched except when probing.
If you send the alarm release and retract command when it's alarmed does it return to normal?
If you move the probe high over the bed to give yourself time to react, are you able to send a G30 to have the probe deploy and move towards the bed, and then if you push the pin in it should stop the movement and stay retracted without going into alarm.
If it doesn't stop movement, you can kill the power.
-
@wepaking said in Bltouch Configuration Issue:
If i pull the pin manually and push it back in it doesnt retract automatically and it also does not go into alarm either.
That too is normal. You should use M401 and M402 to deploy and retract so that the firmware can keep track of the state.
-
@Phaedrux after applying a g30 i had the pin press the bed slowly but it did not retract i pushed a bit more and it retracted into alarm state
-
Have you tested this BLTouch on your other machine and vice versa?
-
@Phaedrux Yes it works fine on my other machine but it not a duet2 wifi it a marlin based system.
-
Ok, so go through this checklist with me
- probe works on another machine no problem?
- when powered on the pin deploys and retracts in self test and then stays retracted with a solid red light?
- M401 and M402 work to deploy and retract without issue?
- G30 deploys the pin and moves the Z axis properly?
- hitting the pin while it's doing a G30 causes it to error?
- does it stop the z axis movement?
-
- Yes
- Yes
- Yes
- Yes
5.Yes a gentle touch will cause the pin not to retract on it own it just pops right back out applying a bit more push causes it to retract and go into a flashing red alarm state. - With a gentle touch or the alarm state does not stop the z axis movement.
Thanks for your help I really do appreciate it all your doing for me.
-
Alright, I think there is a problem with your wiring, specifically the white signal wire. Double check your crimps and wire continuity.
-
@Phaedrux I think your right I put two pieces of bare wire and held them together once I let go the z motor actually stop so I your right there has to be something wrong with the wire or so...... Not sure how to trouble shoot it at least on the pcb side of the bltouch i get continuity between grounds and the signal wire on the pcb i don't think this is right but looks like a short I couldn't find a schematic to see how the bltouch pcb wiring looks like?
-
@Phaedrux Bro thanks so much for your help I feel like a super noob and dumb. So I realized that short is not on my other bltouch so hence it defective. I put my other bltouch from my other machine again and wired up to test and z stopped so I guess I will have to purchase another bltouch because it looks like the signal wire is shorted to ground.
-
Glad you got it sorted out.
-
@Phaedrux Thanks for the help once again and sigh... good luck to me to try to get another bltouch during a pandemic....
-
Well in the meantime if all you want to do is homing the Z you can use probe type M558 P0 to do manual probing which pops up a jog dialogue for you to manually move the nozzle to touch the bed.
-
)))perfect I will do that in the meantime