round corner ruler
thingiverse
i make this tool to help me measure rounf corner for make 3d printed parts INSTAGRAM : makerdiary.id
Download Model from thingiverse
With this file you will be able to print round corner ruler 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 round corner ruler.