Iverntech NEMA 17 Stepper Motor with Integrated 310mm T8 Lead Screw for Prusa i3, Reprap Corexy, MP Select Mini 3D Printers and CNC Mile Routers

These work very, very well; very smooth, straight, and powerful. My machine uses 2 Z-steppers, so I had to increase the max. current on the driver, and add a heatsink. A note to Repetier users: The leadscrew calculator lists a T8-2 leadscrew, but the value this calculator returns must be divided by 4, for example, the motors are a 1.8 degree step, and my driver is set for 1/16 step, giving 3200 pulses per revolution. On these 4-lead screws, 1 revolution gives 8mm of travel, so the correct Z-step setting is 400 pulses per mm. Hope this helps.

Works perfectly, 1.3A current limit (would be cool to add it to product description).

Will they work on a Voron Trident?Yes, but..... you might have to tweak your rotational distance a little. And be prepared for the bed to drop when the steppers are released. I got around the droop by sending my bed to max Z at the end of a print. That means the motors will initially stale during the next home but it works.I would have returned these if I had completed my printer build on time. Unfortunately I was outside the return window when I finally gave the printer it's first G28

Very well packaged in protective foam box. Rod was straight and unbent with a good thread.

worked great