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CAD tip CAD tip # 10802:

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Q - question

Simplifying 3D drawings by replacing repeating 3D solids with blocks.

A - answer With the freeware utility BlokRef (viz www.cadstudio.cz/download) you can simplify - make faster and shorter - some types of AutoCAD 3D drawings.

BlockRef searches the drawing for any repeating (geometrically similar) simple 3D solids and replaces them with blocks - i.e. creates a block for each solid shape and then replaces the individual instances of that shape with references of that block. So the complex 3D geometry (increasing DWG size) will be stored only once in that DWG file, not repeatedly. The overall drawing geometry will not change.

The sample drawing Kvadry.DWG is shortened from 758MB to 160MB using this tool.

The application doesn't support combined 3D solids (3DSolid) created e.g. using boolean operations, only boxes, cylinders and other primitives.

ACAD
100% *  CAD 
18.3.2016    2385×  
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applies to: AutoCAD ·

See also:
Tip 12036:Sel2BlkRef - replace repeating objects with block references
Tip 12034:SolSimilar - select geometrically similar 3D solids.
Tip 12013:How to trim 3D solids with other 3D solid (3D trim).
Tip 11994:How to scale a 3D model to a given size in Fusion 360?
Tip 11959:Supported file types (applications) with reference detection in Autodesk Desktop Connector.


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