20x20 to 30x30 0 or 45 degree
thingiverse
This thing can be used to convert to or from 30x30 and 20x20 and rotate 45 degrees if necessary. I print it using petg, but whatever should work.
Download Model from thingiverse
With this file you will be able to print 20x20 to 30x30 0 or 45 degree 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 20x20 to 30x30 0 or 45 degree.