Bed tramming using tyre tread measuring tool

prusaprinters

I used one of the tyre depth gauge stls and modified it to fit the X3S fan shroud so that I could use it as a bed tramming tool. Links to original models below.  I cut the arms off the digital gauge,  added a loop to the top for pulling it up and secured it with a small strong elastic band for easy removal when not in use.  Tramming is probably easier by just pushing the bed and head around and pushing the stylus onto the bed.  Set all 4 corners to same value using the bed adjusting screws (within 0.02 mm or so) and then set z offset or adjust z limit switch.  Fan is not compromised by the added spacer.https://www.printables.com/model/845567-depth-gauge-to-radius-caliper-adapterhttps://www.thingiverse.com/thing:5206182I've added a second variation which is lower so no need to add anything to the stylus.