This is a simple caliper used to measure dimensions. The ruler is 23.5cm long. The design does not require any support material in the slider grooves and it is setup with the right tolerance so it will slide with ease. there is only one piece of support to be removed and you can start using it. Solidworks Files are included. There is also a shorter body included in case your print bed is small like Ender3, credit for the shortened body goes to the user: No_Thingi
When printing the PDF, make sure you don't use "Fit to page" or any sort of scaling!
4 layers top
3 layers bottom
3 layers side walls
print it at 100%, it uses same amount of material