I have been doing some more test cuts with the machine, yesterday I was doing a cut and a bolt on the z axis rail came a fraction out and cased a jam however I was pretty quick at stopping it and I don't think there was any damage.

However today I have had a error come up that I think I have had before in that the z axis is getting a Stall Detection error on it ie 5 red flashes on the driver ( it is a leadshine em806 hocked up to a nema23)

This does not happen straight away it has been maybe 40 min into a job and the z axis has totally stopped, luckily it has stoped at a point were it has not ruined anything yet however I cant find any mechanical problem that would have caused a stall and I can re set the driver and all is ok again but odiously that's not a cure.

so first I need to figure why it is triggering the stall detection? any ideas????

then second is there a way to hock up a signal to go to e stop if this happens for any other reason. ( I have yet to look into this)

so a little confused at the moment, could it be more noise?

many thanks charlie