My homemade cnc Univelop TB6560 machine was going ok by my standards for quite some time (1.5 years) until the next day when I switched on the machine it won't run.
1) Motors - Vexta PK266-02A (Motors run 100%)
2) Univelop TB 6560 controller & Drivers
3) Mach 3 software
This is what I notice.
When I start up computer the light on Univelop BOB would light up as it always does. But as soon I start up mach 3 the light would go off.I have measured and checked voltage on DB25 parallel cable which seems ok. Have uninstalled and re-installed Mach 3 but problem persist.
I cannot understand what caused this sudden change.
Can you help please.
When an all-in-one board fails it will not always be obvious where the fault lies.
Does your parallel port on the PC run a printer? - a printer is an easy way to check PP basic function ;-)
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