Parable Ruler
thingiverse
To draw x squared on paper, use a template designed specifically for that purpose. The standard template size is 80 by 160 millimeters, ideal for drawing on centimeter-scale paper. For paper with half-centimeter measurements, a smaller template measuring 40 by 80 millimeters is recommended.
Download Model from thingiverse
With this file you will be able to print Parable 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 Parable Ruler.