
3DHirn manufactures prototypes and small series from plastic using 3D printing (FFF/FDM) and resin casting.

3DHirn
Munich (Schlüsselbergstraße 16)New on Amplifa
About 3DHirn
3DHirn is a one-person operation run by Marius Hirn with its registered office in Munich. The offering includes 3D printing using the FFF/FDM process as well as resin casting: using silicone or rubber molds taken from a master model, faithful copies are produced in casting resin. In addition to mold making and the production of components, manufacturing consulting is also part of the service spectrum. Typical projects include the replication of historical or no longer available spare parts, complex plastic parts in small series, and new products with material requirements that 3D printing or other manufacturing processes cannot meet. 3D printing has been the primary design and manufacturing method used for over 15 years; today, in addition to directly printed finished parts, further additive processes are offered via partner networks. Communication is conducted in German and English.
- Site
- Munich
- Processes
- Resin Casting, 3D Printing (FFF/FDM), Consulting (Manufacturing Consulting, Prototyping & Small Series), Mold Making (Mold Making for Resin Casting), Resin Casting with Silicone Molds, Mold Making, Prototyping, Small Series Production
- Materials
- Resin (Casting Resin), Silicone (Molds), Rubber (Molds), Plastic (3D Printing Filament), 3D Printing (FFF/FDM), Resin Casting, Mold Making
- Employees
- 1
- 01
Consulting (Prototyping & Small Series)
- 02
3D Printing (FFF/FDM)
- 03
Mold Making (Silicone/Rubber Molds)
- 04
Resin Casting (Resin Casting)
- 05
Small Series Production
Materials and Processes
3D Printing (FFF/FDM)
Direct printing of prototypes and finished products from plastic filament.
Resin Casting
Molding of a master model in silicone or rubber molds and casting with casting resin for detailed small series.
Mold Making
Production of silicone and rubber molds for the resin casting process.
Locations
Munich
DERegistered office
- Lot size
- Small series
- Materials
- Plastic (filament), casting resin, silicone, rubber
- 3D printer (FFF/FDM)
Inside the production

Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Resin CastingCasting | – | – | – | Small series (small run) | Resin, Plastic, Silicone (mold material), Rubber (mold material) |
| 3D Printing (FFF/FDM)Additive | – | – | – | – | Plastic (filament) |
| Consulting (Manufacturing Consulting, Prototyping & Small Series)Engineering | – | – | – | – | – |
| Mold Making (Mold Making for Resin Casting)Casting | – | – | – | – | Silicone, Rubber |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 3D Printer (FFF/FDM) | – | – | – | – | Munich |
Additional services
History
3D printing as the first design and manufacturing method over 15 years ago