Worm Drive for hobby motors

This is meant to be a functional hobby motor Worm shaft. The worm itself is 40mm long, 5mm Between spirals on center (distance from the center of one spiral to the next), and there are 8 spirals along this 40mm stretch. Meant for a 2mm Hobby motor shaft. I personally suggest ordering it in metallic plastic, because the Metallic Plastic is about twice as strong as regular Strong and flexible plastic. The Regular Plastic is Strong enough for Use with a gear. The Metallic Plastic is the Best material for this, Because it is much more brittle and will not wear as much with higher RPM and can withstand more.

This worm drive fits perfectly with some Lego mindstorm gears.