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Many automotive moldmakers use third-party translation tools to export CAD data for manufacturing. On the CAD side, such translation software often is feature-based, assessing not just model geometry but the recipe of design features that make up the model, reducing translation errors.

The raw data imported from CAD for mold manufacturing frequently needs reviewing for manufacturability prior to use. Failure to catch a problem can result in costly downstream rework. Images courtesy Elysium Inc.

On the moldmaking side, the software embodies expertise that can speed up the process of simplifying CAD data for CAM, verifying and repairing any modeling defects and confirming the manufacturability of the product design.
Moldmakers who are considering adding translation tools to their process should look for the following capabilities:

CAD translation software reviews mold data for draft angle, wall thickness, undercuts, minimum radius curvature and other manufacturing concerns.

Simplification

Does the software identify curves with radii too small for cutting machines to follow?
Can it simplify surfaces, including those with patches, inconsistencies, and other irregularities, so that the surfaces will promote smooth, chatter-free machine toolpaths?
Can it confirm that all edges have two contiguous faces so that the model surface is continuous and not leaky?

Verification and Repair

Can the translation tool identify and repair gaps in the surfaces—often nearly invisible—that will interfere with the creation of toolpaths?
Does it find and correct slivers and self-intersecting loops created in translation from the original CAD system?

Manufacturability

Can the software detect problematic product features, such as sharp edges, faces that lack a draft angle and thin walls that reduce part strength?
Can it assess mold formability and look for convex corners that lack a draft angle to accommodate a cutting tool, deep trenches that may undercut mold strength, and small bumps and features that will build in extra tooling costs?
Can it warn you of features that will interfere with mold construction, such as undercuts or bosses that will be difficult to fill or will increase cycle time?

Translation software with these capabilities will greatly reduce manual repair, increase manufacturing data quality, and promote mold formability and product manufacturability.

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