T&L Publications

Remember that no matter what chip you choose, they will be able to use what they learn on other chip families. You don't need the latest & greatest. I would suggest that features such as flash memory/in-circuit programming would be of high importance in making learning more fun/less of a chore. ...

Take a look at http://www.shopbottools.com/ They make CNC routers for woodworking which have been adapted for use with plasma cutters. They run close to $6k as a kit of parts. Also you may find much useful info on G-code programming and translation from CAD files on their forum. BTW, they operate ov...