WARNING; Ultimaker removed 5th stepper driver of Ultimaker2 - Third party products & modifications - UltiMaker Community of 3D Printing Experts
Stepper Driver Board (UMO) - fbrc8 llc
How to adjust the current to the stepper motors? avoid stepper motor overheating? new UMO+ - UltiMaker 3D printers - UltiMaker Community of 3D Printing Experts
X/Y Axis Stepper Motor (UM2/UM2X/UM2+/UM2X+/3/3X/Go) - fbrc8 llc
Ultimaker X Y Axis 42 Stepper Motor For For Ultimaker Original 2 Extended Go Reprap 3d Printer Ne17 1.8 Step Angle 1.5a - 3d Printer Parts & Accessories - AliExpress