CNC Machining Tolerances: Why Tighter Isn’t Always Better One of the most common misconceptions in CNC machining is that tighter tolerances automatically make a better part. They don’t. A tolerance should be tight enough for the part to function correctly—but no tighter than necessary. Every time you tighten a tolerance, you potentially add machining time, […]
Category Archives: CNC Machining
Practical CNC machining guides from a working machine shop, covering CNC milling, custom machined parts, tolerances, materials, workholding, tooling, design for machining, and common CNC machining myths.

