Hi gays I'am converting harrison mill to mach3 cnc.
I have problem with crazy axis movements. I crashed into the vice and bent int30 to er20 collect holder already. I'am bit scary now to do anything with it.
My spec:
OS windows XP with mach3 software.
Smoothstepper +2 china bob lpt breakout boards.
Supply for electronic 5V 12V from PC supply
Everything works but sometimes goes crazy. First time when I machined some steel block, I tried to stop it by pressing stop button and after that Z axis went up by itself, crashed into the vice and bent it. I tried to find what is wrong with it I found that:
https://www.youtube.com/watch?v=4aQec3N8ong
https://www.youtube.com/watch?v=gp2n8N1zoO8
When I am using mpg and trying to change axis same time mill goes mad - go somewhere ...... don't know where really... like on the video. I can stop it by pressing e/stop but after I will press reset button and just touch mpg or key on keyboard she go somewhere again.
I have no idea why. Can Anyone help me with that please. Sorry for my spelling, English is my second language.
cheers