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CAD-Helper is a Blender extension for cleaning and restructuring imported CAD assemblies. It targets large assemblies with hundreds of parts and nested sub-assemblies, with operators for hierarchy selection, filtering, clean-up, and instance detection.

Add Std Paper-Format is a Blender add-on that creates planes sized to standardized paper formats, including European (A, B and C), US, Japanese, Chinese, billboard, newspaper and book sizes, plus custom dimensions.