Proto-Bot
thingiverse
This tiny gadget reveals the motion of rods within 3D printers, CNC machines, and laser cutters. It necessitates: a 600mm long, 5mm diameter linear rod, along with twelve 5mm by 7mm by 8mm bushings.
Download Model from thingiverse
With this file you will be able to print Proto-Bot 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 Proto-Bot.