Re: [CAD_CAM_EDM_DRO] Paper Tape Reader?

Raymond Heckert wrote:

>Does anybody have a circuit to build a LED-type, RS-274 Paper tape reader
>for my CNC machine? Also, I'd like to be able to verify some part files,
>and possibly archive some program tapes. I have an old KSR-33 type machine,
>but it's punches hang up, and the printwheel doesn't always print the
>correct characters, and also, it doesn't 'read' the binary program code
>that I want to archive. Circuit or schematic, anybody, please? Or is this
>O.T.?
>
>

There are a million of these around. Check eBay for people selling CNC
controls, and
contact them. I have one, but I'm not sure I want to let it go just
yet. Most people who
retrofit old CNC machines pull these out. Having attempted to build a
PTR many
years ago, I don't recommend it!

Jon