serial port question

Not strictly FreeBSD-based but adjacent, surely…

I have a 3D printer that has a serial port connection through USB but it's
not working through the various apps that obscure the details in the name
of "convenience." You know what I mean. I like convenience as much as
anyone but sometimes I just have to get on with it. Does anyone have
experience in communicating with really simple machines over a serial
connection? It's not always easy to ID the serial device but that's a
separate problem. Allegedly I can communicate up to 115k but I'll settle
for a lot less to send simple commands like M502 or M500.



-- 
Paul Beard / www.paulbeard.org/