NXT Motor Shaft to Tetrix Coupler

This robust coupler is designed to attach Tetrix parts to the NXT Motor. With this piece, you can attach many tetrix components directly to the NXT motor shaft. Now you can use the versatility of NXT motors to make precise robots and mechanisms! You may also buy the STL file here: http://selz.co/1m7FCop. There is also a reinforced makerbot-friendly STL file for this piece here: http://selz.co/1klZubY The motor and tetrix pieces are not included.