Again Pokeys57CNC problems, anyone using it?

[Zeeflyboy]

Just to add my 2 cents, my pokeys57cnc has been working great so far on my machine with mach4. Probing seems to work well with my 3D touch probe too.

I do have everything run via a star point ground, including the spindle and all shield wires... so perhaps noise is indeed the issue.

[Chaz]

Argh, not getting spindle to work. Do I use Pin 17 for the 'up to 10V' output and then GND as the 0V?

Not sure if I am doing the mapping stuff correctly or not. This is with the Pokeys 57 U, not a bad board thus far.

[Chaz]

Ok, got it to start, had to put in a timing value for PWM. It turns but my speed changes dont change the input voltage that is stuck on roughly 3V. Just wondering how my USB powered device 'creates' 10V if there is no external power supply.

[Neale]

Ok, got it to start, had to put in a timing value for PWM. It turns but my speed changes dont change the input voltage that is stuck on roughly 3V. Just wondering how my USB powered device 'creates' 10V if there is no external power supply.

From what I have seen, quite a lot of BOBs need a separate external power supply for the analogue output, typically 12V. Some VFDs can provide this - all depends on the combination of kit you are using.

[Chaz]

From what I have seen, quite a lot of BOBs need a separate external power supply for the analogue output, typically 12V. Some VFDs can provide this - all depends on the combination of kit you are using.

Thanks. Managed to get it work, but not with the board itself. The Pokeys U board is limited to 3.3V PWM max. Confirmed by their support guys and online via a thread. So got a £4.99 RS485 USB adaptor which I got working last night. So no need for spindle control from the Pokeys. Not ideal but it works.