Based on thing 2383818 but recreated from scratch. Two options, an exact recreation and a symmetrical version. You can consider it a remix if you'd like since CrashZero deserves credit for the reference model.
Use the jig to set the 8x4mm magnet (I use 2 stacked 8x3 magnets for extra separation).
It certainly isn't an original idea but it adds character to my printers.
The author hasn't provided the model origin yet.