ParaCrux

Available Everyday · 8 min

Change a dimension on a copy

Propose a new value, run it on a copy, check the result independently, then accept or reject. Your original is never touched.

Video in production

Until it is ready, this is the running order. Each step is also written out below, and you can try it in the simulator.

  1. Capture

    Worksheets: brief, capture, fingerprints appear.

  2. Propose

    Select the thickness, enter 12 mm, add a volume bound.

  3. Run on a copy

    Accept plan and execute on copy; SOLIDWORKS rebuilds the copy.

  4. Independent check

    Import STEP and check in ParaCrux; volumes agree.

  5. Accept and export

    Review note, Accept result, printable worksheet.

  6. The original

    Open the source part: still 10 mm.

You need

  • The app activated
  • One SOLIDWORKS session with a clean, saved, rebuilt part active
  • The part has one configuration and no equations or external references

You'll come away with

  • Capture a part into a worksheet
  • Propose and review a dimension change
  • Read the evidence before you accept

Step by step

  1. Capture the part

    Open the Worksheets tab and write the change brief. Choose Capture current part and references: it pins copies of the source and records their fingerprints, so later you can prove what you started from.

    “Make the plate 12 mm thick for the heavier bracket.”

  2. Propose new values

    Pick up to 16 of the captured driving dimensions and enter new positive values in millimetres or degrees. Say why. You can add volume, area or mass limits the result must meet, each with a minimum, a maximum and where the requirement comes from. Then choose Save proposal for review.

  3. Run it on a copy

    Choose Accept plan and execute on copy. The change is made on a new copy, rebuilt and checked; native and STEP outputs are saved and the native file is reopened.

  4. Check it independently

    Choose Import STEP and check in ParaCrux. It measures the output with a separate geometry engine and compares solid count and volume with the native result.

  5. Accept or reject

    Write a result review note. With both checks passed, Accept result is enabled; Reject result needs only the note. Neither changes the original. Choose Export printable worksheet for your records.

Try it here.

The values are from a recorded run on 23 September 2026: a 60 × 40 × 10 mm plate made 12 mm thick. The dimension name is typical SOLIDWORKS naming, shown for illustration.

Solidworks Agent · design conversation simulated · step 1 of 7

  1. YOUMake the plate 12 mm thick for the heavier bracket.

    Captured

    Part
    60 × 40 × 10 mm plate
    Configurations
    1
    Source copy
    pinned, fingerprint recorded

    Recorded from a real run

What it won't do

  • One part at a time: no assembly edits, and only parts with one configuration, no equations and no external references.
  • The worksheet records are hash-chained local records, not signed identity attestations.
  • If a run times out, the outcome is marked uncertain and never replayed automatically.
  • Passing checks shows the result matches the stated values and bounds, not that the design is right.
  • The printable worksheet's full record includes local file paths. Check it before you share it.

If you see a message

Covers: Reviewed dimension changes. See the full index