Module 4 Pro7 min read

Working with other people's drawings

Opening client files, external references, and not breaking what you receive.

Here is a truth about real CAD jobs that surprises every beginner: most working days start with someone else's file, not a blank one. A client sends their old plan to update. An architect sends a base drawing for you to add furniture to. A survey arrives and your work must sit on top of it. Drawing skill got you this far; this lesson adds the professional manners for handling files you did not create — and the tool offices use to share them safely.

The first-open ritual

A received .dwg is unknown territory: unknown units, unknown layers, possibly stray objects a kilometre from the plan. Before touching anything, run this ritual, in order:

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