Quote Originally Posted by irving2008 View Post
4k7 on the base is slightly too small, your logic 1 level will be 2.8v assuming 5v rail which is marginal for noise IMHO. I'd go to 10k at least.

Many thanks Irving, a 10k resistor on the transistor base worked a treat, I was able to squeeze it in without remaking the PCB which was also good. Here's a couple of pics...

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Today I did the mains wiring and started on rewiring the stepper motors, I think I have identified the connectors used as JST SM connectors, and just need to order some male/female crimp pins for them to be able to finish it off.

While I was away I thought about the front panel, it would be nice the engrave some text/lines for a nice professional finish. I just wondered if anyone else had done this and managed to fill the engraving with black paint to good effect?

I think I have also decided to fit some form of LCD display, which I could use to display various info from Mach3 instead of a bunch of LEDs. I could also look at building a speed sensor for the spindle and displaying the speed on the display as well.

Anyway I think tomorrows job will be to try and design the front panel, stay tuned.