Rotating discs
thingiverse
Just a little gadget consisting of 3 discs that can rotate independently of each other in any direction. It can be used for first layer height / width or extruder calibration as well. Clearence between the discs is 0.4mm. Leaving a like is most appreciated and "made" pictures are always nice to see!
Download Model from thingiverse
With this file you will be able to print Rotating discs with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Rotating discs.