Since it happened to me again and again that I accidentally bumped into the belt tensioner while working on Ender 3v2 and thus misadjusted it... a lock was needed.
Here it is.
Ender3v2-Belt-Tensioner-Lock-stl.stl | 438.5KB | |
Ender3v2-Belt-Tensioner-Lock.3mf | 118.9KB |