Classic Tetrominos (Tetris forms)
thingiverse
As I couldn't find any regular Tetrominos on Thingiverse, here they are. You can download the *.stl files or the raw Freecad Files - feel free to copy, resize, remix, print, sell or whatever you wanna do with is. I printed it w/ a 6mm height and 6mm width for the cubes itself, feel free to resize.
Download Model from thingiverse
With this file you will be able to print Classic Tetrominos (Tetris forms) 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 Classic Tetrominos (Tetris forms).