I’ve just fitted a new BL touch to my Ender 3 v2 and installed the following firmware.
When I start a print it will occationally stop with a bltouch error and octoprint disconnects from the serial. The printer will then sit there with the bltouch flashing red and I am unable to reconnect to the serial. I have to power down the printer and try the print again.
The bltouch was purchased from the creality store on Ali Express.
Is there anything I can try before throwing the bltouch in the bin?
The version I have has a cable with a single connector at each end (v3 smart?) and it’s impossible to plug-in incorrectly. I will check the cabling and test for continuity, I guess something could be loose.
I just found this page suggesting PWM values might need to be tweaked in the firmware?
Ok, if the probe fails its deployment - ie the pin doesn’t pop out, put a hex key in the slug on the top of the BLTouch and rotate it 180 degrees clockwise (as looking down onto the top of the BLTouch). Don’t go past 180 degrees - as this is quite sensitive.
Make sure you use a correct fitting hex key - as the slug is quite fragile.