Last winter, I bought a used desktop CNC router. No screen, no simulation mode, just a grimy controller and a warning from the seller: “It doesn’t preview paths. You’ll find out if it crashes by the sound.”
The CNC simulator on my Mac didn’t just replace a missing display — it became my low-cost crash test dummy. No wasted stock. No screaming router. Just a second chance before the first move. cnc simulator mac
That’s when I found a hidden gem: an open-source simulator that runs on Metal (yes, Apple’s graphics framework). No fan noise. No driver hell. Just a crisp 3D preview of my toolpath, material boundaries, and — most importantly — the exact moment my too-long end mill would have carved a trench through my spoilboard and into the table below. Last winter, I bought a used desktop CNC router