BLTouch troubleshooting (multilingual)
A guide to why a BLTouch won't deploy under Klipper, translated into Japanese and Korean.
Take it apart
When a BLTouch probe pin won’t deploy under Klipper, or triggers falsely, the information is scattered across forum threads. There are several possible causes, and treating only the symptom tends to send you the long way round.
Understand it
The causes fall roughly into three groups: the pull-up setting on the signal line, the filter capacitor for noise, and the wiring itself. I organised them so you can narrow down which one to suspect, step by step, from the symptom.
Remake it
Starting from information in English, I wrote a Japanese version. A Korean version is in progress.