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12-21-2010

Combine craftsmanship and high-tech

Advent Calendar with Complex Chocolate Figures

Combine craftsmanship and high-tech

An example of how to combine craftsmanship and high-tech was presented by Padelt 3D Systeme GmbH, Strausberg, Germany, with the development of a thermoforming die for an advent calendar. This die produces plastic trays, which are used for the actual production of the chocolate figures. The starting point was 24 figures modeled in chocolate, with traditional Cologne characters and tourist attractions, including "Tünnes and Schäl", "Orjels Palm" and the city landmark Cologne Cathedral. The figures were scanned at the company with a very high resolution of 0.02 mm – resolutions of 0.1 to 0.05 mm are often sufficient for engineering projects.

The scan data had to be adjusted to suit the properties of chocolate. Seen under the 3-D scanner as well as the microscope, the figures showed rills, spherules and cavities in their surfaces. After surface reconstruction in a CAD model, the plastic trays were adapted to the thermoforming die. This ensures that they can be subsequently demolded. Other techniques for individual small-series production, such as rapid manufacturing or injection molding, were not suitable for the advent calendar because of the material or product design.

Company profile

Padelt 3D Systeme GmbH

Müncheberger Str. 7
DE 15344 Strausberg
Tel.: 03341 312893
Fax: 03341 390996

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