core
thingiverse
Customized version of https://www.thingiverse.com/thing:1221494 Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=1221494
Download Model from thingiverse
With this file you will be able to print core 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 core.