Change the panel width

Change the panel width — guided practice

Revise geometry while keeping the fold pattern and targets fixed.

Pattern B is 160×60 with creases at 40, 80, 120, all at 90-degree targets. Compare with A: 120×60, creases 30, 60, 90, also 90-degree targets.

1. 1. Check the new geometry

   Calculate B panel width 160/4=40 and flat area 160×60=9600 square units. Compare A’s panel width 30 and area 7200. Write an area increase of 2400 square units.

   You should see: B widens every panel by 10 units and increases area by 2400.

   The new boundary and crease positions must agree with the equal-panel plan.

2. 2. Export and inspect B

   Choose B in the local fixture, download accordion-B.svg and import it. At Fold Percent 0 inspect four equal panels and three internal creases.

   You should see: The revised flat sheet has a larger width but the same height and panel count.

   Checking the flat state isolates a geometry mistake from a folding effect.

3. 3. Compare folded proportions

   Set A and B separately to 50% using Reset and similar viewpoints. Record which dimensions were changed and describe the resulting proportions without claiming an exact projected footprint.

   You should see: Both request 45-degree folds, but B has wider panels.

   A rotated rendering alone is not a direct numerical width measurement.

4. 4. Interpret a model limit

   Open the original project description and note that the solver uses geometric constraints. Write that this study does not establish material thickness, hinge friction, load capacity or manufacturing fit. Paper route: compare a full sheet with a different-width available rectangle only if one is already available; otherwise compare the two flat diagrams.

   You should see: The geometry revision is explained without turning it into a strength claim.

   A computational shape model is not a physical qualification test.