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CAD tip CAD tip # 5351:

Question CAD 
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Q - question

How to update drawing blocks with an updated version from a DWG file?

A - answer You want to update a block or blocks in a drawing (or in multiple drawings) with a new modified version. You can use the free LISP utility by CAD Studio - BLKREDEF.LSP (see

First save the edited block to a separate DWG file (using WBLOCK). In the target drawing first load (APPLOAD) the BlkRedef utility and use the BLKREDEF command to update (refresh) the blocks of a given name. The BlkRedef command with the parameter blockname can be used even in scripts to batch update multiple drawings at once (use any batch processor - like ScriptPro or ScrGen).

In your script, use e.g.:

(load "blkredef.lsp")
(the myblock1.dwg, myblock2.dwg and myblock3.dwg files must be in the AutoCAD search path)
100% *  CAD 
10.1.2007    31346x  
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applies to: AutoCAD ·

See also:
Tip 10574:Four methods for exploding blocks in AutoCAD.
Tip 10173:How to insert a block from another DWG file?
Tip 9711:3DConstruct - converting a 3D mesh to a frame construct
Tip 9609:How to scale CAD objects vertically only?
Tip 9318:Material list on isometric drawings not printed black-and-white.

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