3D Printing Forum

@chaco That BIQU (BIGTREETECH) MKR V1.3 controller and BIQU TMC2209 drivers has thrown up lots of problems for me. Firstly, the TMC2209 drivers Vref came set at something like 0.32 volts (Computer USB being used to check). The BIGTREETECH docs said it should be 1.2V but the pot would only get me up ...

My MPK V1 stopped driving the extruder stepper yesterday. Motor was ok (tested using Z channel). Tried changing the A4982 stepper chip for E0 but no change. I searched everywhere for a replacement MPK V1 but could not find one. Thanks to @Chaco I bought a BIQU SKR v1.3 from Amazon for £24 but had to...