Speed Up Large CAD Assemblies by Suppressing Detailed Features

Large CAD assemblies often slow down due to unnecessary detail. Suppressing small features like fillets, chamfers, and holes can drastically reduce file size and load time. This technique works in virtually all major CAD packages and requires no geometry simplification.

Focus on suppressing features that don't affect fit or function. For example, cosmetic fillets on non-critical edges or internal threads. You can create a simplified configuration or suppress features manually before saving. Some CAD tools allow batch suppression using feature recognition rules.

To maintain associativity, use design tables or suppression states. This lets you toggle between detailed and simplified versions without losing original data. For standard parts, consider using envelope representations instead of full models.

Test your assembly's load time after suppression. A 50% reduction in feature count often yields 30-70% faster opening. This is one of the easiest ways to improve team productivity on large projects.

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