Stepper Wheel - FireLine pulley 25% and 75% more torque than GT2 Belts

I have a **need for speed** and have been wanting to find a compromise between speed and cost, to be honest next step up from GT2 belts would traditionally be industrial grade ball-screw or pinion drive which both come with big caveats.


Inspired by [Dualwire-Gantry (DW-G)](http://reprap.org/wiki/Dualwire-Gantry_(DW-G)) and the approach of using FireLine, this is a extremely strong fishing line with nearly no stretch, **the creators of FireLine claim there is no stretch however that's not en