All ok, great exteuder, works fine on my alfawise u30, Is very very plug & play, do not invert any wires of extruder motor, set 395 e-step for exact wire extruder. i:m very very Happy and now the print Is more beautiful and precise
Extruder is really nicely built, but it has some slack in tension handle and in some point it scrubs the big wheel. Solution is easy, when you have some super thin 3mm shimms around. After shimming the motion is super smooth and grip on filament is excellent.