Quote Originally Posted by camhguh View Post
Well...guess what...we have a problem...after around four or five hours intermittent use the z axis is misbehaving....when i jog down it goes up and when i jog up it goes down...hehe not... bloody Chinese gremlins!!!

The odd thing is that we can move the gantry to a certain position on the bed and it works fine but within a limited area. Because we need the parts urgently we are running it for the moment in this manner but its a pita!

I think because it works ok in one area of the machine that the problem is most likely to be with the wiring and not the driver boards...at least im hoping so..because any issue with the wiring would be a lot easier to resolve!

Forgot to mention that we are using Mach3

Anyone come across a similar problem?
Could be a dodgy keyboard and it's just coinsidense it happens to be working in one spot to the other. If you have another KB it's Certainly worth eliminating for what it takes.!!