Shapeoko 4 — Aluminum 6061

Aluminum 6061 on Shapeoko 4 requires conservative settings, lubrication, and sharp tooling. Achievable but go slow. Bit Roughing Notes Tips Use WD-40 or dedicated aluminum cutting fluid — dry cutting aluminum galls the bit fast. Single flute O-flute bit is ideal. Chip evacuation is critical: compressed air or chips weld to the work.