the better quesion i should have asked is how did you get the rs232? plugs on the ends of the stepper wires thru the shielding braid? cut/reattach/solder? if it messes with a warranty or something just pm/email me or something or i’ll deduce it?.. deaglebingo outlook… but again thanks for replying before especially when you already commented on this so much earlier and i just didn’t see it in my searching… so also:
i’m posting another link to this thread too that you already commented on to further cement anyone’s understanding if they find this later… sometimes my search skills catches up later after i understand the concept better. Grounding interference solved!.....I wish
edit: wait a second i’m dumb… looking at pics a second time you didn’t shield the actual stepper motor cables… i need to re-read the hypertherm pdf etc you posted and get my shit together on concepts here.