Korean modelmaker cuts development times
A
Delcam product story
Edited by the Engineeringtalk editorial team
Oct 23, 2003
Replacing its previous mixture of software with Delcam's Power Solution has enabled Korea's Academy Plastic Model Co to significantly reduce the time taken to develop new model kits.
Replacing its previous mixture of software with Delcam's Power Solution has enabled Korea's Academy Plastic Model Co to significantly reduce the time taken to develop new model kits.
In the first project, a kit for an F-18 fighter was produced in only five months, compared with the 15 months that had been needed previously to create a similar scale model aircraft.
Academy Plastic Model Co was established in 1969 and quickly built up a good reputation among model makers for the quality and authenticity of its models.
The company now has branch offices in Germany, Japan, China and the Philippines, in addition to its facilities in Korea.
Prior to converting to Delcam software, Academy used five different systems for the various stages of designing and manufacturing its new models.
The change was prompted by the purchase of a Deckel Maho DMU 60T high-speed mill.
The existing CAM package was unable to machine the very complicated, high precision parts at high speed.
Contact with Hankook Delcam soon proved that its PowerMill CAM system could provide a much better machining solution.
However, it also became clear that there were many other areas where Delcam software could help the company.
All Academy's kits are produced from prototype models that are themselves created from 2D designs developed from historical drawings and pictures.
The initial problem for the company was that the methods used to produce the moulds from these prototypes could not provide the machining accuracy needed, especially given the very thin wall thickness of the parts.
The new process begins by scanning the prototype with a Perceptron laser scanner mounted on a CimCore arm.
The data generated are used to produce a 3D CAD model of the outer skin in the CopyCAD reverse engineering package.
This design is then moved into the PowerShape hybrid modeller for the creation of any internal features, for example, to aid assembly.
The part shape is then turned into a complete 3D mould design and cutter paths for the various parts of the mould generated in PowerMill.
As well as speeding the overall process, the use of Delcam software has meant that the finished parts of the model can be made exactly as described in the original drawings.
This has given the company the confidence to develop the assembly guide for the model maker concurrently with manufacture of the mould tools.
Previously, there had been very little success in making all the component pieces as first specified by the designer.
In most cases, the various component designs would go through a series of modifications before they could all be moulded successfully, meaning that the assembly instructions could not be started until a complete model had been made.
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