Save and explain the fold study
See this course’s project requirements
An original accordion fold study with three SVG variants, checked geometry, target-angle comparisons and an honest simulation or paper-model record.
Keep your working files in your own notebook or software. Save a private description, checklist, and work link in My Proof.
What to include
- An original four-panel pattern with M/V assignments and checked dimensions.
- A three-state partial-fold log or labeled paper-state sketches.
- A comparison of 90-degree and 45-degree targets.
- A width revision from 120 to 160 coordinate units.
- Original input files, comparison notes and simulation exports or paper-model descriptions.
Review and revise
Use these criteria to check your work and choose what to improve.
- Crease assignments and panel geometry match the specifications.
- Target-angle calculations are correct.
- Controlled comparisons identify what changed.
- The method and limits are stated accurately.
Want more background?
The idea in everyday life
Required final bundle: local HTML fixture, A/B/C SVGs, fold-notes.txt and screenshots or hand-drawn state descriptions. A FOLD simulation export is useful when the app runs; paper-route completion does not require it.
A reproducible study preserves both the input instructions and the state or observations they produced.
Save and explain the fold study — guided practice
Deliver the original pattern, revisions and an inspectable comparison.
Required final bundle: local HTML fixture, A/B/C SVGs, fold-notes.txt and screenshots or hand-drawn state descriptions. A FOLD simulation export is useful when the app runs; paper-route completion does not require it.
1. Assemble the comparison
In fold-notes.txt list A: 120×60, target 90; B: 160×60, target 90; C: 120×60, target 45. Add panel widths 30, 40, 30 and areas 7200, 9600, 7200. Include the A 50%=C 100% target equivalence.
You should see: The note summarizes three designs with consistent geometry and angle values.
A compact record makes the controlled changes easy to inspect.
2. Save a simulation state when available
With your chosen design loaded, use File > Save Simulation as > FOLD. Name the file, record the Fold Percent and include target angles if the dialog offers that option. Keep the original SVG as well.
You should see: The folded state and flat input are preserved as distinct files.
A state export answers a different question from the original crease pattern.
3. Reopen and verify
Reimport the original SVG and check its flat pattern. If using a FOLD export, reopen it and compare its visible state and assignments; record any difference rather than assuming all settings round-trip. Paper route: make labeled flat and folded sketches with M/V assignments.
You should see: The delivered evidence can be checked against the original pattern.
A successful save is only one part of a useful handoff.
4. Explain one finding
Write three sentences: which parameter changed, what was observed, and what the model cannot establish. Include the tool and route used. Package the files and notes without claiming physical tests.
You should see: The study has a clear finding and an honest method record.
A useful explanation connects an input change to evidence and limits.
What to finish
A reproducible fold-pattern study with original inputs and comparison evidence.
Watch for this
Keeping only a screenshot and losing the pattern instructions.
How can I tell I understand it?
Explain the result, reproduce the procedure, and complete the changed-input check.
Quick knowledge check
Answer all 3 questions. Get at least 2 right and the lesson completes automatically.
You’ll get an explanation for each answer. Signed in? Your results save to your account.
Pass the check. We’ll save the progress.
Answer all 3 questions above and get at least 2 right. You can review the explanations and try again.
Go to the knowledge checkOptional course overview video · same video as Lesson 1
Class 1: Overview for MIT 6.849 Geometric Folding Algorithms: Linkages, Origami, Polyhedra
From MIT OpenCourseWare. Watch here or open it on YouTube .
Optional course overview. Follow the written steps below at your own pace.Tools, templates, and lesson sources
Tools and templates
Tools open in a new tab so you can keep your place here.
Sources and further reading
Explore the references behind this lesson.
Source & access notes · checked 2026-09-12
Read Fold Percent, SVG stroke/opacity rules, import, pattern view, strain explanation and export controls. WebGL simulation was not operated.
Access: Public reading without a paid account; reviewed September 12, 2026.
Reuse: Link only. Lessons and practice assets are original; free access does not grant permission to copy the provider's material.
Source & access notes · checked 2026-09-12
Read original project description, simultaneous-fold solver, constraints, SVG/FOLD input and GPU method.
Access: Public reading without a paid account; reviewed September 12, 2026.
Reuse: Link only. Lessons and practice assets are original; free access does not grant permission to copy the provider's material.
Source & access notes · checked 2026-09-12
Read authors, research abstract and publication metadata. No claim of validating the numerical solver.
Access: Public reading without a paid account; reviewed September 12, 2026.
Reuse: Link only. Lessons and practice assets are original; free access does not grant permission to copy the provider's material.
Source & access notes · checked 2026-09-12
Read original project README, supported inputs and MIT license declaration.
Access: Public reading without a paid account; reviewed September 12, 2026.
Reuse: The simulator repository declares MIT licensing. This course links to the hosted tool and supplies an independently written crease generator; no third-party patterns or source files are copied.
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