
Model making, foundry patterns, jigs and fixtures as well as 5-axis milling, 3D printing and waterjet cutting up to 7 m part size

Modellbau Wilhelmi GmbH
Oberndorf am Neckar (Gutenbergstr. 7-9)New on Amplifa
About Modellbau Wilhelmi
Modellbau Wilhelmi GmbH is a model-making company based in Oberndorf am Neckar. The company produces foundry patterns for sand casting — aluminium castings, spheroidal/grey iron castings and steel castings — from wood, plastic and aluminium, which have been used in foundries throughout Europe for more than 45 years. Further services include visual and trade-fair models including painting, as well as ultrasonic welding, measuring and assembly fixtures made from model-making block material, cast PU and epoxy materials, aluminium and brass. Production takes place on seven CNC milling machines, three of which are gantry milling machines with traverse paths of up to 7 m, supplemented by 3D printing for prototypes and small quantities as well as high-pressure waterjet cutting for plastics, wood, metals and stone. Support ranges from data conversion and casting-technology consulting through to the finished pattern or casting. On 2,000 sqm of production space, the managing directors Frank, Marco and Tobias Wilhelmi work in the third generation.
- Site
- Oberndorf am Neckar
- Processes
- 5-axis milling (5-axis simultaneous), 3D printing, High-pressure waterjet cutting, Foundry pattern making (sand-casting patterns for aluminium castings, spheroidal/grey iron, Visual models / trade-fair models / design prototypes (including painting), Fixture construction (ultrasonic welding fixtures, measuring and assembly fixtures) incl., CAD / CAM (data conversion, casting-technology consulting), Foundry patterns (sand casting: aluminium, spheroidal/grey iron, steel castings)
- Materials
- Wood, Plastic, Aluminium, PU (polyurethane, cast), Epoxy, Brass, Stone, 5-axis milling (5-axis simultaneous)
- Certificates
- Measurement report creation (external measurement service provider)
- Industries
- Foundries, Mechanical and plant engineering, Plastic processing
- 01
Data acquisition / CAD-CAM / data conversion
- 02
Casting-technology consulting
- 03
3D printing / CNC milling / waterjet cutting
- 04
Assembly / painting
- 05
Measurement report creation
- 06
Delivery to foundry / support up to the finished casting
Materials and Processes
Wood
Classic model-making material for durable sand-casting patterns.
Plastic
For foundry patterns, visual models and fixture components.
Aluminium
For wear-resistant foundry patterns and fixtures.
PU (polyurethane, cast)
Cast PU materials for fixtures.
Epoxy
Cast epoxy materials for measuring and assembly fixtures.
Brass
For precise fixture components.
5-axis milling (5-axis simultaneous)
Parts and components up to 7 x 3 x 1.75 m, also simultaneous.
3D printing
Prototypes and small quantities, sometimes faster than traditional processes.
High-pressure waterjet cutting
Heat-free cutting of plastics, wood, metals and stone.
Locations

Oberndorf am Neckar
DEHeadquarters / Production
- Materials
- Wood, plastic, aluminium, PU, epoxy, brass
- 7 CNC milling machines, of which 3 gantry milling machines with up to 7 m traverse path
- 3D printers
- High-pressure waterjet cutting system
- CAD/CAM
Components and Products



Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| 5-axis milling (5-axis simultaneous)Machining | – | 7 m × 3 m × 1.75 m | – | – | – |
| 3D printingAdditive | – | – | – | Prototypes and small quantities | – |
| High-pressure waterjet cuttingMachining | – | – | – | – | Plastics, Wood, Metals, Stone |
| Foundry pattern making (sand-casting patterns for aluminium castings, spheroidal/grey ironCasting | – | – | – | – | Wood, Plastic, Aluminium |
| Visual models / trade-fair models / design prototypes (including painting)Assembly | – | – | – | – | – |
| Fixture construction (ultrasonic welding fixtures, measuring and assembly fixtures) incl.Engineering | – | – | – | – | Model-making block material, PU, Epoxy, Aluminium, Brass |
| CAD / CAM (data conversion, casting-technology consulting)Engineering | – | – | – | – | – |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Gantry milling machine (CNC) | – | 3 | up to 7 m traverse path | – | Oberndorf am Neckar |
| CNC milling machine | – | 7 | – | – | Oberndorf am Neckar |
| 3D printer | – | – | – | – | Oberndorf am Neckar |
| Waterjet cutting system | – | – | – | – | Oberndorf am Neckar |
Additional services
Quality
Measurement tasks are carried out on site with a renowned measurement service provider; on request, customers receive a detailed measurement report of their fixture. The 2,000 sqm production area is monitored by “Protection One”.
| Evidence | Oberndorf am Neckar |
|---|---|
| Measurement report creation (external measurement service provider) |
History
Company founded more than 80 years ago; long-standing experience in model making.
More than 45 years of supplying foundry patterns to foundries throughout Europe.
Use of 3D printing for 30 years (approximately since the mid-1990s).
- 2022
Presentation of journeyman's certificates to apprentices (Jasmin Dussling, April 2022).
- 2026
Honouring of Uwe Braun for 45 years of company service (apprenticeship start 1980) and Leszek Szyszka for 30 years of service.