CNC machining is a very common technique for creating prototypes. 3-axis, 4-axis and 5-axis lathes and mills make this a great choice for low volume, complicated parts. Short turnaround times and large variety of materials to choose from makes CNC very popular for R&D engineers. The use of CNC allows for highly accurate parts to be made to meet tight deadlines.
| Plastics | Ferrous Metals | Nonferrous Metals |
|---|---|---|
| Acrylic | Mild Steel | Aluminium |
| Polycarbonate | Carbon Steel | Copper |
| Peek | Stainless Steel | Titanium |
| Nylon | Cast Iron | Gold |
| Delrin | Silver | |
| UHMWPE | Tantalum | |
| ABS | Nickel | |
| PVC | Zinc |
| # | Company | Reviews | Rating |
|---|---|---|---|
| 1 | 3D Solutions Inc | 2 | |
| 2 | 3D Systems Quickparts | 46 | |
| 3 | 3D Systems, Inc. | 32 | |
| 4 | 3D-CAM | 12 | |
| 5 | American Precision Prototyping | 7 | |
| 6 | Ayala Research Corp | 5 | |
| 7 | Centerline Precision | 5 | |
| 8 | Con-Tech Plastics | 5 | |
| 9 | Control Plastics Inc | 19 | |
| 10 | Expedite Precision Works | 25 | |
| 11 | Fathom | 11 | |
| 12 | Forecast 3D | 10 | |
| 13 | Haldeman & Frazier Inc. | 14 | |
| 14 | Megaroller | 7 | |
| 15 | Norman Noble Inc | 24 | |
| 16 | Pencom | 25 | |
| 17 | Proto Labs | 25 | |
| 18 | ProtoCafe | 16 | |
| 19 | Studio Red | 7 | |
| 20 | West-Tech Materials | 22 |