Calibration bot
thingiverse
A way to test your 3d printer settings with things like over hangs squareness hole making text and more. And the added benefit of also stress testing it.
Download Model from thingiverse
With this file you will be able to print Calibration 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 Calibration bot.