yoyo
thingiverse
You can add four 10mm wrench-sized nuts to give your yoyo more weight, but both sides need to be perfectly horizontal to keep the balance intact.
Download Model from thingiverse
With this file you will be able to print yoyo 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 yoyo.