- 3D Printing
- 3D Design / 3D Scanning / 3D Modeling
- Specific 3D Printing Applications / Fields / Conferences
- Specific 3D Printers, Scanners, & Hardware
- RepRap Format Printer Forum
- FlashForge Forum
- Peachy Printer Forum
- MakerBot Forum
- New Matter's MOD-t Forum
- QiDi 3D Printer Forum
- Hyrel 3D Printer Forum
- CTC 3D Printers
- Pegasus Touch Laser SLA Printer Forum
- Einscan-S 3D scanner
- Other 3D Printers / Scanners / Hardware
- FABtotum Forum
- O13Bot
- RapidBot Forum
- Mark One Forum
- Kudo3D Titan 1
- German RepRap
- Solidoodle Forum
- QU-BD One Up & Two Up Forum
- Type A Machines Forum
- Robocular 3D Scanner Forum
- M3D Forum
- Strooder
- UP 3D Printers Forum
- Printrbot Forum
- Ester - Open Source SLS
- DWS DigitalWax Systems
- MBot 3D Printers Forum
- Boots Industries BI V2.0
- The Copperhead Forum
- Be3D Forum
- Sintratec SLS 3D Printer
- 3DMonstr Forum
- Blokify Forum
- LIX 3D Printing Pen
- Fusion3 3D Printers
- 3DPrintBoardPro
- Other