You are reading a single comment by @JurekB and its replies.
Click here to read the full conversation.
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
JurekB
If (as a retired teacher of metalwork etc) I had to select metals for milling, copper would not be near the top of the list - even cnc milling the thin layer on printed circuit boards often tore the copper from the grp - a straight single flute engraving tool was about the only thing I'd let students use, with close supervision against the moment the tool got stuck and stalled the motor.
I'd be genuinely interested in the details if you get this to work!