I am having a problem getting a BLTouch to work on my Ender 3 V2. When I try to Autohome it to start setting it up the Z axis will not travel in the down direction. It will travel up fine and the X & Y axis' work fine but it won't go down. It's as if the BLTouch thinks it's triggered.
I have triple checked the wiring and have tried multiple firmware variations with the same results. I have compiled the latest version of Marlin bugfix myself, and tried the Creality and Smith3d versions. All behave the same.
When I turn on the printer the red light on the BLTouch comes on and it extends and retracts the probe a couple times. The red light stays on. When I hit the autohome icon it goes to the Z and X axis switches and then centers on the build area. It then cycles the extend/retract bit a couple times ending with the red light off and the probe extended but it doesn't do anything after that. There's a little blue light flashing rapidly inside the BLTouch housing while it's just sitting there.
Is there something I may have missed or could it be a bad sensor?
I have triple checked the wiring and have tried multiple firmware variations with the same results. I have compiled the latest version of Marlin bugfix myself, and tried the Creality and Smith3d versions. All behave the same.
When I turn on the printer the red light on the BLTouch comes on and it extends and retracts the probe a couple times. The red light stays on. When I hit the autohome icon it goes to the Z and X axis switches and then centers on the build area. It then cycles the extend/retract bit a couple times ending with the red light off and the probe extended but it doesn't do anything after that. There's a little blue light flashing rapidly inside the BLTouch housing while it's just sitting there.
Is there something I may have missed or could it be a bad sensor?
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