That's a tricky one!! There is no published information that I can find on the control board other than the terminal connections. However if the Z ...

Hi, Sounds as though you might have some inadvertent short circuits somewhere on the Z motor wiring. That doesn't explain the magic touch you have...

Hi, Sorry this is in English but my German is at schoolboy level!! If X-axis works ok under manual control, but stops prematurely in automatic ...

I have just received my SC420/2, and so have been able to check the circuitry associated with the limit switch inputs. All three switches are connect...

If you have checked with a multimeter that the signal actually appears at the input terminals of the control board, then it sounds suspiciously like a...

SUCCESS!!!!!!! All were .jpg files around 135Kb or less. Next project is a redesign as a tool length sensor. Peter

Hi Worldhusky. Thanks for the guidance. I see you used .png files, I had tried with .jpg files. Maybe they were too large, but I don't know wh...

Hi That's a neat idea to use a laser - but is the position relative to the spindle axis absolutely fixed? I believe that crossed polarisers are o...

Hi Tikka, Thanks for that thought, but as I am quite new to CNC it would seem prudent to make haste slowly and learn to walk first. The suggestio...

Hi MagIO2, Thank you so much for that - it is most informative. I think the light has dawned at last!! It seems you have been down a similar upgr...

Hi MagIO2 Thanks for your response - unfortunately that leaves me even more confused as to the interface possibilities. Perhaps some simple block ...