We Helped Produce The Slovenian Sportsman of the Year 2016 award

When several identical copies of an art work, ie. sculpture are desired we usually encounter a problem due to technological non-feasibility. Such cases call for compromises. This case study presents how we at TECOS approach such problems quickly and cost efficiently by applying methods of advanced 3D scanning and reverse engineering.

studija-primera sportnik-leta-2016 osnutkiProblematics

  • hand made statue used as a base for creation of sand casting pattern
  • several details on the spiral are not manufacturable
  • short lead-time

 

Solution

We performed the following steps for the customer:

  1. 3D scanning of hand made statues (accuracy 0,02 mm)
  2. Reverse engineering (creation of precise computer 3D model for further processing and modifications)
  3. Preparation of the 3D model for the technological process of sand casting
  4. Export of 3D model in neutral format

The final result was a technological 3D model with all little details, ready to be used for pattern design and production.

 

Purpose and Benefits For End Customer

  • quickly from purchase order to final result
  • no need for full understanding of production technologies by the customer - all communication with technologists from selected production company was done by us
  • high accuracy of scanning and original details

 

Below you can find some pictures and more description of project phases.

3D scanning

Two statues made of plaster were scanned.

studija-primera sportnik-leta-2016 modeli-skeniranje

Figure 1: Original statues

ATOS CS 5M structured light scanner was used for 3D scanning with the accuracy of 0,02 mm (achieveable also under 0,01 mm). Every detail was captured including some not wanted errors which were eliminated during reverse engineering phase. Figure 2 shows scanned data (STL model).

studija-primera sportnik-leta-2016 rezultati-skeniranja

Figure 2: Scanned data; especially the flame displays surface irregularities due to hand-work

Reverse engineering

In this phase a 3D CAD model was produced based on scanned data. CAD model is a mathematical representation of surfaces which is used as an input data for the vast majority of conventional technics of pattern or toolmaking (either for casting, injection moulding or others). In the case that larger corrections on the model are not needed this phase can even be omitted and STL is used for direct manufacturing.

studija-primera sportnik-leta-2016 3D-modeli-za-izdelavo-kalupov

Figure 3: CAD model of an athlete and flame statues; smoothing of details as comparred to figure 2 which shows only scanned data can be observed

Final Result

The customer provided a picture of trial castings made on the basis of our models which turned out very good indeed. One of them went into the hands of Peter Prevc, 2016 ski-jumping world cup champion and owner of several records.

 

WARUM TECOS?

  • Langjährige Erfahrungen
  • Kompetentes Personal
  • Kurze Reaktionszeit
  • Ganzheitliche Lösungen aus einer Hand
  • Spitzenmäßige Ausstattung der führenden Weltlieferanten

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