Saturday, June 25, 2011

3D Model Overmold Scanning

3D Model Overmold Scanning

3D Scanning can be a very powerful tool for correcting overmold problems.

Flash and/or failure to shut off in overmolding is often caused by a poor fit between the part and the mold. Scanning can provide an easy and straightforward method to correct the fit.

The part to be overmolded is scanned and enough data is collected to accurately describe the part. Software such as Rapidform is used to create a solid model (CAD model) of the part including all the shrinkage, warpage, etc. The end result being a CAD model that accurately represents the part to be overmolded. The model is then used to redesign and modify the overmold tooling to fit the part precisely.

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