Nema 17 Flexible shaft

Finally found a really easy guide to making worm gears! So now here is my take on the flex drive extruders.

There are 2 different worm gear sets. The one labeled 1-40ratio is a 1:40 gear reduction to get the same resolution & power as the flex3drive. The non-labeled one is a 1:13 gear reduction to be used with a titan or bondtech extruder which has a 1:3 reduction already. So it should have a 1:39 gear reduction total and perform much like the other worm drive with a not geared extruder.