All Works

Mechanism design / UIUC · AE 498 / 2026

Thick Origami Mechanisms

I adapted paper-folding geometry into printed mechanisms, making room for the thickness of real panels.

My contribution
CAD, assembly, evaluation
Tools & methods
NX CAD, rigid-panel geometry, 3D-printed panels, tape-hinge assembly
Evidence
CAD geometry · Manual motion demonstration

A pattern that folds in paper can jam when its panels have thickness. I designed rigid-panel mechanisms in NX, changing panel thicknesses and adding cutouts to give the moving parts room.

I prepared the designs, assembled the printed panels with tape hinges, and checked their motion by hand. Nikhil submitted the print job on the Space Structures Lab-managed printer.

The Bennett-linkage prototype demonstrated coordinated folding, and a related Miura-Ori assembly explored another pattern. These were working demonstrations of the geometry; strength and repeated-use durability were not tested.

Allowing for panel thickness

The paper models helped establish the folding motion. In NX, I translated that geometry into solid parts. I varied panel thickness and cut away material where needed so neighboring panels could pass one another as the mechanism folded.

Paper folding model shown in two configurations.
Starting with a paper model

The thin paper model illustrates the folding motion before allowing for solid-panel thickness.

Project report, PDF page 6.
Colored NX CAD model of the rigid-panel mechanism
Making room for solid panels

Panel thicknesses and cutouts in the NX model provide clearance during folding.

Project report, PDF page 7.

Assembling and checking the motion

I joined the printed panels with tape hinges and moved the Bennett-linkage prototype through its folding sequence. That physical check showed the coordinated movement of the assembled parts, beyond what the CAD views alone could show.

Purple 3D-printed rigid-panel folding mechanism with tape hinges
The assembled Bennett-linkage prototype

Printed panels connected with tape hinges, ready for a manual motion check.

Project report, PDF page 9.
Sequence of purple printed panels folding through several configurations
The folding sequence

The printed Bennett-linkage prototype moving through several configurations by hand.

Project report, PDF page 9.

Trying a second folding pattern

I also assembled a thick-panel Miura-Ori model and examined its motion. Together, the prototypes showed how thickness and clearance affect whether a folding pattern can work as a physical mechanism.

Sequence showing a white printed Miura-Ori folding assembly changing configuration.
The Miura-Ori assembly

The printed thick-panel Miura-Ori model in several hand-folded configurations.

Project report, PDF page 10.

I performed design, preparation, assembly, and evaluation. Nikhil submitted the print job on the Space Structures Lab-managed printer.

Go deeper / Full technical report

Thick Origami

Open the original report for the methodology, calculations, and detailed results behind this overview.

PDF · 13 pages · 0.6 MB

Next project

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