DIY 3020 CNC I/O Board

[Pointy]

I tweaked the circuit a bit as there were a few mistakes, and changed a few values. I also put some of it together on the breadboard to test it out and everything worked great. I have the PCB designed and after the 3rd attempt managed to get it single sided within the 100mm x 80mm free Eagle size constraints.

Next job is to make the PCB and test it out!

Regards,

Les

[Pointy]

I tweaked the circuit a bit as there were a few mistakes, and changed a few values. I also put some of it together on the breadboard to test it out and everything worked great. I have the PCB designed and after the 3rd attempt managed to get it single sided within the 100mm x 80mm free Eagle size constraints.

Next job is to make the PCB and test it out!

Regards,

Les

After a couple of stupid mistakes with the pinouts of the ISQ74's, I got the PCB isolation routed & the components fitted. Initial bench tests look good, all inputs and outputs are doing what I expect them to do. All I need to do is hook it up to the BOB and PC to test it properly.

Regards,

Les