I just finished my 3 axis mill and making a few cuts. I have an older CCNC 2 amp control board with 100 oz stepper motors. The machine runs fine, but when I let the machine sit for about 5 minutes, the Z axis slow blow 2A fuse blows. I am not sure if I have too much weight on the z axis to make it blow or what. The control board has current limiting on it and I have it set for a little under 2 amps. Any help would be appreciated.