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I did not get anything. Guess its time to try another set of drivers/motors.
The motherboard that I'm trying now has a Serial port, I'm about to run it directly and see if it works but I need to see how to set that up. Heres how i have it wired trying to do the manual test. Dont mind the yellow wire i attached to the drain wire to keep ground loops/noise from the last setup. Its just hanging now.

There is no way to get continuous motion from the motors without
a stream of step pulses

You should be able to tie the drives STEP- to GND
and get a single step each time you connect/disconnect
the drives STEP+ pin to +5V

for posterity, i made a new config. still nothing. at this point i want to drive the motors manually like im pretending to be the the mesa board. where do i send power/gnd to make the driver move the motor?

is that the motor tuning part during the setup menu?
i manually edited the 5000 lines to 10000, no change. it was called something a little different in the config file.

A much easier way to try motion settings is to invoke the calibrate menu
when running LinuxCNC, Then you can change them dynamically
by just changing the desired parameter and then hitting the "Test" button

I tend to get an error when i use the advanced tab and edit my config file. Wont let me continue. Deselected the advanced options, still got an error at the virtual control panel menu.

please assume nothing. i rather know. i have nothing but the z drive wired to the 7i96s. if you are talking about the ENA ports, no those are left alone. i only disconnected the BOB of uc100/mach3 to connect the mesa board. drives to motor wiring havent changed.

i will try the 10k step on time.

If the direction signal from the 7I96S changes, that means that communication
and the physical direction output is working so the problem is likely elsewhere
Can you try 10000 for the step-on time?

Also I assume the drive enable inputs are not wired (these disable the drive if powered)

Yes this board works 230vac rectified, so 325vdc. Going to 600vdc I think would require major modification, and I didn't had the time to speculate much on it.
I'm currently controlling an old ABB irb6400 robotic arm, it used to have an isolation transformer and a simple rectifier, so 300vdc is more than sufficient for these motors.
I can assemble, flash and ship some boards to who is interested. There's a contact link in the repo readme.
The board is opensource, so is definitely possible to change connectors ecc, but it have to be safe and practical, if you have ideas you can open a discussion on github.

voltage from ground to dir - changes in one direction and step - to dir - changes in the other; i believe im remembering that right.
goes from 4.9v to .24v

If you have one working card you could choose the slowest/cheapest shipping option for
the other card Also both issues (damaged step/dir output or damaged spindle output)
are relatively easy  to repair if you have a nearby person with SMT repair ability
(the affected parts are known and inexpensive)
 

I would not expect a voltage change on the step connection
only the direction connection.

Did you check the 7I96S direction pin when running
LinuxCNC and jogging in either direction?


 

ok, i was having a very very blonde moment. i had z axis set to step3 position, but the board starts at zero; so no power lol

it seriously still didnt work when i hooked it to "step2". WTH. i do see power change with jog, but no stepper movement.

i have been playing just with z axis thus far, and no there has been zero movement of the motor or voltage change with a volt meter checking the step connection on the 7i96s.

So you are saying that running LinuxCNC, you jogged in either
direction and the direction signal for the jogged axis does not change?