puzzle block
thingiverse
I'm trying to construct a massive structure out of blocks right now. It's going to be so big that I'll have to use all my strength to hold it up.
Download Model from thingiverse
With this file you will be able to print puzzle block 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 puzzle block.