Eraser and CNC machine: what they have in common

1. Step 1. Eraser — uses — Friction. It removes graphite by friction.
2. Step 2. Friction — is used in — Abrasive. Removing material by friction.
3. Step 3. Abrasive — is used in — Waterjet cutting. An abrasive.
4. Step 4. Waterjet cutting — uses — CNC machine. CNC.

Open Evothings