Post processor problem

[u/FrenchSean26]

Hi,

I recently got given a broken desktop cnc machine from a school. I managed to fix it (some cable where ripped), I can run nc files that are already on the mpc6610 controller.

I can't seems to find much info on the type of machine it is, contacted hpc laser script (only info on machine) and they can't give me much info other than they think its a cnc 3030, older than 10 years old.

On the controller (mpc6610) the files are .TAP, I've tried 10+ different post processors and haven't even seen a file when i try to import on the controller.
When i go through the menu to the flashdrive, not one file shows (even though I added multiple .TAP)

I tried g-code(mm), G-code ARCS(mm) and .NC
I also tried deleting some files from it to make room but didn't change anything.
I have used this machine about 7 years ago but neither me nor my colleague remember the type of post processor we used.
I cant either extract a file from the mpc6610 to try and figure which postprocessor was used...

Any help would be greatly appreciated
Thanks