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looks a lot like this....https://www.automationtechnologiesinc.com/products-page/motion-controllers/cnc-6-axis-interface-breakout/

g 80 and g 99 in same line? you have some weird modal changes going on.
and line 143 supposed to be a rapid across opening but tool in material? think g99 is messing you up.

My first question would be-what inputs do the kiosks take? hopefully vga.
then what video card is in your computer?

I don't have anything specific to that machine, but is where the 3 ph power originally entered the machine?(ie repowering the entire machine?)

Still has its servos? what kind? other inputs? coolant? encoders and limit switches run thru this box? some pics or names on box/motors/encoders.want to keep
existing control as much as possible or...

CENTROID controls?

On the perfboard-that blue resistor is it a 100k? I can't see it so well

On the perfboard-that blue resistor is it a 100k? I can't see it so well

great square wave! I was reading Carsten's fix (https://www.machsupport.com/forum/index.php/topic,34483.0.html ) and i like adding a lowpass filter 10-20 nf cap on output. I think the POkey input...

that bottom (last)trace looks fine-can you measure the low volts on that bottom trace? I'm guessing thats the cny70 out?
that trace looks so good I wouldn't need a schmitt trigger!!

both +5V to pin 13 was 0.00 and gnd to pin 13 was 0.00? Perfect! You could skip the resistor but its not necessary-I would put the 7414 back in and check its current draw
(either +5V in or gnd out)...

Spindle VFD trips off? (high pitch whine associated with the powered up machine goes quiet)? there is an external trip for VFD-not sure what triggers it.

We had a large current draw and a hot chip last time?. if the POKEY pin 13 is an input by default you should be able to measure any current into or out of that pin directly with your meter set to...

Any way? sure but the circuitry would be more complicated than using a h bridge driver chip to directly drive the h bridge of your choice

(Am i overthinking this?) Probably, looks like they will both work fine.

Another good piece of info, the 7414 shouldn't get hot - it only draws 15 ma,(what are the other 5 inverters connected to??? their other outputs aren't grounded are they?check the wart output first,...

Bingo-the 5V supply should not vary by more than 0.2V at the worst, the std 5V regulator 7905 spec is 50 100 millivolt variance max

Good morning Jeff, I don't quite understand what you are measuring with Vin? is this input to the 7414? and Vout high is the 7414 out? if so i think you need to moniter the 5V supply during these...

what is the pokey powered from??
I think you need a solid 5V supply for starters.
P.S. why POKEY pin 13? it seems to be the index pin.

Well, this IS confusing for an armchair quarterback- if the 7414 output is disconnected from the pokey then the only 2 states it can output iare 0.3 V or 3.3 V, if its anything else
then its...

Carsten's circuit looks fine-putting the load resistor on the other side of the phototransistor allows you to get closer to 0volts when off at the expense of a lesser on voltage. note that he is...

1.25 V is not either of the 2 possible outputs for the 7414!! -is the pokey terminal 13 set for an output vice input?
Your square wave looks perfect-drop the caps and 2k output resistor on the...

I think you are misunderstanding the home concept with the breakout board/linuxcnc.
-linux cnc starts a home command move (from the main linuxcnc screen) -moves one of the axis and waits until the...

those traces look great to me, they are from the output of the 7414 i assume? before or after the caps installed? (just so I can learn a little too)
I was reading the pokey manual a little- there...

sounds like you are almost there, I looked up the 7414 data sheet and the test values call for a 2k load resistor to ground on ouput as well as 15pf cap.
should have a 0.1 uf cap to vcc to gnd and...

Digikey 296-1577-5-ND SN74HC14N there are 6 in there

the pokey board is not doing any pulling-its a high impedance input-the problem is using bipolar designs (LM741 ) has a 0.7 volt voltage drop when on so you cant get closer to to zero than 0.7 V...

Ok, that makes more sense, next I think for starters I would drive the sensor thru a 100 ohm resistor to get the drive current up a bit-18 ma is kinda low to drive the photo trans into...

My read of the pokey manual looks like pin 17 is Galvanically isolated 0-10 v analog out-Doesn't look like this pin can be switched to an input.
P.S. I can't see first two attachments
Jim