The Block Crank
thingiverse
This product is a sound making machine. When you turn a crank, you will hit four spinning blocks that make loud noises. This is fully 3D printable and will work when assembled right.
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With this file you will be able to print The Block Crank 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 The Block Crank.