Any one used drivers and steppers from CNC4you

[Jonathan]

What size machine are you building? 10mm pitch screws might have been a better choice if it's not too late. Only guessing though, not enough information.

Not sure about the drivers. Bit expensive for a 50V driver (compare it to eBay m542) unless there really is something special about it ... like vector current control. You'd have thought they'd advertise if it was something specific. 1Mhz pulse input is essentially useless for us. The gecko is very likely to be better, but it depends what you're using it for. Might be better but if you don't need that then there's no point, so save the money.

The motors looks promising, don't think anyone on this forum has used the 4Nm motors. I almost bought a couple for my machine's X-axis to replace the 3Nm steppers, but decided it wasn't really worth it as it'd only make it go faster which doesn't really achieve much. The specifications for those motors look good ... try it and let us know! Run them on M752 / M880N or similar 70-80 volt drivers for best performance (>torque at >speed).