Calipers
thingiverse
Here is my latest project - a set of homemade calipers that fit perfectly into any budget. Simply follow this straightforward guide to create your very own measuring tool :).
Download Model from thingiverse
With this file you will be able to print Calipers 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 Calipers.