Recently I had a customer who asked me, hi Vikki, what can I do if my laser engraver M900 only move to LEFT direction?
What should you do my dear customer? let me tell you something to check:
1. be sure every wire is connected well but not loose. Loose wire will cause some problem.
2. be sure the data cable is connected well. If the cable is loose, then the date transit will becom bad, that maybe cause laser machine movement problem.
3. There are two IC on the PCI card name: 26ls31. Once IC controls X axis movment of laser machine and the other IC controls Y axis movement and laser beam. So maybe its problem of the two IC. Then you can buy two new IC to replace this to check if it is the IC problem
4. I had a customer who replaced two IC but the problem still appears, but it only move to right direction this time. Then we can say, we have to change a new PCI card. The PCI card failed maybe due to long time use or abnormal opearation.
You can try if you face same problem my dear customer, and let us know any of your question.
Redsail will be your honest partner.