cnc lathe overview 02 Media

Here's a rundown of my CNC lathe conversion. The purpose of the vid was to demonstrated the CW/CCW spindle control, however I never got around to filming any actual machining using this technique. When using a boring bar, this will allow you to machine the inside of a hole first, then spin the spindle counter clockwise and machine the outside (back) of the piece too! All in one motion, no tool change required. It's pretty slick. It is a bit tricky to program, but for an OD fillet you just use the wizard, then convert all the X positive numbers into negative, switch all the G02's to G03's, then I replace "i0 k-..." with "R-...". This lets me face the part, bore the ID to the required size, skim the ugly off the outside and put a nice fillet on the inside and outside edge, all in one operation with one tool.