Hi,
Im new to this CNC forum and I also dont have the lathe that you have but I have the Colne 5 that Im trying to repair with a view to connecting to a computer. the interface i reckon maybe similar to yours its an IDC plug similar
to whats inside a computer. on looking inside at the circuit board connected
to the interface plug you can identify by following the tracks to I.C chips that have numbers on them such as 74LS125 ,7403,etc you can then identify the one that the interface plug connects to and look it up on the internet if its not a serial decoder driver or serial to parallel data converter then your interface is most likely a parallel input which would/could be connected to a parallel port on a computer. However I strongly advise making a simple buffer board circuit see old electronics projects as inputes and outputs from your lathe firstly need to be connected correctly and voltage levels on newer computers are not the same as older ones. I have seen some freeware CNC software that Im investigating that interfaces with a parallel port on a computer. A lot of if and buts only attempt if youve got time and no money
to waste.
Anyway if anyone out there has circuit diagram for the Colne 5 please email
me even a picture of the circuit boards with the ribbon cable header on the
small board maybe handy sorry not trying to hijack you post.  |