What is ʼPROPAGATEʼ for repetitive detailing in BricsCAD?

ByCADbrief Staff

Short Answer

Yes — in BricsCAD, repetitive detailing is typically handled with COPYGUIDED, not a command literally named PROPAGATE. The fastest professional method is to copy selected detail geometry from one source area to similar targets while keeping relative placement. Limitation: it works best when target geometry is clearly comparable.

What You Need to Know Before

Warning: Guided repetition can fail when the source detail is tied to different edge lengths, locked layers, or non-matching geometry conditions. A common real-world problem is copied details landing in the wrong orientation because the target edges were selected inconsistently.

How to Do Repetitive Detailing in BricsCAD

  • Command: COPYGUIDED

  • Shortcut: No default shortcut

  • Quick Steps:

    1. On the Ribbon, go to the relevant modify/copy tools area, or type COPYGUIDED at the command line, then select the detail objects you want to repeat.
    2. Define the source geometry reference that controls how the detail is positioned, then select the matching target geometry.
    3. Use the command options to confirm placement and repeat the copied detail on similar locations; make sure the alignment/preview option is checked before finishing.

Variables & Settings

  • Key Setting: Alignment/preview option in the command

  • Expert Setting: Always verify the preview before accepting the copy. This helps catch reversed placement, wrong rotation, or detail offset errors before the repetitive detailing is committed.

Why it Fails

  • Cause 1 (Geometry): The target shape does not sufficiently match the source reference, so the repeated detail cannot be mapped correctly.
  • Cause 2 (Layers/Locks): Destination layers are locked or the selected detail includes objects on frozen/locked layers, preventing proper copying.
  • Cause 3 (Command/Logic): The command is not a true parametric detail generator, so it cannot intelligently rebuild details for very different conditions.

Quick Fix & Best Practice

  • Quick Fix: Run UNLOCK or unlock the target layer in Layer Explorer, then repeat COPYGUIDED using cleaner and more consistent source reference geometry.
  • Manager’s Verdict: Use COPYGUIDED for fast repetition of similar 2D details across comparable conditions. Avoid it when each detail requires engineering changes, because manual verification is still necessary.

FAQ

Is there a real PROPAGATE command in BricsCAD?

No, the practical BricsCAD method for this workflow is usually COPYGUIDED.

Can COPYGUIDED repeat annotation and blocks?

Yes, if they are part of the selected detail set and the target condition is suitable.

Does COPYGUIDED work well on different scales?

Only if the geometry relationship remains comparable; it is not a full automatic rescaling tool.

.

Related Posts: