Starter Design skill
Extrude a part in PartMode
Turn a closed PartMode profile into an exact extruded solid and verify its dimensions, body, and feature history.
Create one predictable solid model from a verified profile. Use $sketch-and-dimension-in-partmode first when the profile is incomplete or its dimensions are not agreed.
Boundaries
- Confirm whether the extrusion creates a new body or adds to an existing body.
- Use an absolute requested depth and explicit units; do not infer scale from the view.
- Do not accept a preview that merges, intersects, or creates extra regions beyond the stated intent.
- A rendered mesh is feedback, not exact completion evidence.
Procedure
- Record the source profile, extrusion direction, depth, start condition, symmetry intent, target body, and expected final bounding dimensions.
- Select the intended closed profile and choose Extrude. If starting from Sketch, finish the inline profile before setting the feature depth.
- Enter the exact depth. Reverse direction or choose a symmetric result only when it matches the design contract.
- Choose the correct result intent: a separate body for an independent solid or an additive result only when the profile intersects the intended target body.
- Review the preview from more than one view. Confirm the selected region, direction, extent, and body count before applying.
- Apply the feature and wait for the kernel rebuild to settle. Read any failure in History instead of treating the last visible preview as committed.
- Inspect History, Bodies, and Inspector. Verify the Extrude depth, exact solid validity, body identity, and expected dimensions, then save the editable project.
--- name: extrude-a-part-in-partmode category: design description: Turn a closed PartMode profile into an exact extruded solid and verify its dimensions, body, and feature history. Use when someone asks how to make a sketch 3D, create a plate or block, add material from a planar profile, or repair a failed Extrude. --- # extrude-a-part-in-partmode Create one predictable solid model from a verified profile. Use `$sketch-and-dimension-in-partmode` first when the profile is incomplete or its dimensions are not agreed. ## Boundaries - Confirm whether the extrusion creates a new body or adds to an existing body. - Use an absolute requested depth and explicit units; do not infer scale from the view. - Do not accept a preview that merges, intersects, or creates extra regions beyond the stated intent. - A rendered mesh is feedback, not exact completion evidence. ## Procedure 1. Record the source profile, extrusion direction, depth, start condition, symmetry intent, target body, and expected final bounding dimensions. 2. Select the intended closed profile and choose **Extrude**. If starting from **Sketch**, finish the inline profile before setting the feature depth. 3. Enter the exact depth. Reverse direction or choose a symmetric result only when it matches the design contract. 4. Choose the correct result intent: a separate body for an independent solid or an additive result only when the profile intersects the intended target body. 5. Review the preview from more than one view. Confirm the selected region, direction, extent, and body count before applying. 6. Apply the feature and wait for the kernel rebuild to settle. Read any failure in **History** instead of treating the last visible preview as committed. 7. Inspect **History**, **Bodies**, and **Inspector**. Verify the Extrude depth, exact solid validity, body identity, and expected dimensions, then save the editable project. ## Done - History verifies one intended Extrude feature at the expected position - The checked feature uses the agreed profile, direction, depth, and body intent - Bodies confirms the expected exact-solid count with no rebuild failure - Inspector or exact measurement verifies the requested final dimensions - The editable project is saved after the settled rebuild