Intanso

Duo.

A multi-modal desk lamp

for task and ambience

A multi-modal desk lamp

for task and ambience

ALL WORK /

DUO

/ 06 • NEXT:

DUO

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Background.

An ergonomically considered chair

that fits a range of body types.

An ergonomically considered chair

that fits a range of body types.

A carbon fiber + steel hybrid chair you can work and relax in.

ROLE

Designer, Fabricator

TIMELINE

5 Weeks

MATERIALS

CFRP, Steel, TPU

ADVISOR

Kimberly Snyder

INTERACTIVE • USDZ

Walk around it.

In your space.

Drag to rotate and interact with the model.

Tap View in AR on iPhone or iPad to drop a life size model into your room.

ASSET

Intanso3D.usdz

AR FORMAT

Apple Quick Look

SCALE

1 : 1

RENDERER

spline.design

Research.

A chair feels different for every body. Research started in showrooms and ended with eleven volunteers in an Ergobox.

SHOWROOM SURVEY

DWR

HERMAN MILLER

CB2

IKEA

A Saturday in Atlanta showrooms spent sketching, measuring, sitting, and dissecting every chair turned small ergonomic details into field notes.

4 SHOWROOMS / 40+ REFERENCE CHAIRS

ERGONOMICS REFERENCE

THE HUMANSCALE MANUAL

Seat height, backrest angle and recline geometry came straight off the Humanscale seating guide, then got cross-referenced against modern chair dimensions before a single line was drawn.

18"

SEAT DEPTH

INT’L AWARDS

17"

SEAT HEIGHT

INT’L AWARDS

15"

BACK HEIGHT

INT’L AWARDS

103º

SEAT BACK ANGLE

INT’L AWARDS

FULL SCALE TESTING

ERGOBOX EVALUATION

Using the measurements from both the reference chairs and the Humanscale manual, a scale seat was constructed to test the ergonomics of the measurements

INDIVIDUALS

INT’L AWARDS

SEAT PROFILES

INT’L AWARDS

FAVORITES

INT’L AWARDS

FINDING

Back 1 won with everyone 5′ 3″ and under. Everyone else picked back 2, so back 2 became the shell, with the lumbar curve pulled down an inch.

Ideation.

Forty silhouettes on paper, then straight into true scale before anything got cut

SKETCH DEVELOPMENT

My sketch ideation revolved around looking at my inspiration board and placing my own twist onto them for a variety of shapes and silhouettes.

SCALE CHECK • AR

Sketch models moved the form into 3D fast. Dropping the model into the room at 1:1 through AR allowed me to compare to real chairs.

FUSION 360

FORM MODELING

AUGMENTED REALITY

3D FORM MODELING

FUSION 360

RHINO

The Seat and Back were seamlessly modeled in Fusion 360 through SubD Form Modeling to eliminate all seams and surface imperfections. The form was then brought into Rhino for the bent legs and joinery.

ZEBRA ANALYSIS / SEAMLESS SURFACES

TECHNICAL DRAWINGS AND SCALE

This concept render shows the final design I landed on for the project and the dimensions are near final with the full version

JOINERY AND HARDWARE

All the joinery involes 1.5" screws going through a predrilled hole in the frame tubing and interlocking with a threaded insert built into the TPU Spacer

Prototyping.

Being completely new to Carbon Fiber, intensive research and half scale tests were crucial to saving time and money.

MATERIAL TESTING

My introduction to carbon fiber was a small scale test using a PETG mold layered with mold release, resin and carbon fiber

INITIAL FINDINGS

My first test piece showed that I should be using a lot more resin to fill in the gaps and that curved elements added a lot more structure than initially expected.

PETG MOLD

WET LAYUP

CARBON FIBER REINFORCED PLASTIC

STRESS TESTING

Flat regions acted as the main point of failure while the 3D geometry maintained its structure during the majority of the test. The redesign will continue the curve to reinforce the overall structure.

CARBON FIBER WET LAYUP

My second attempt was on the half scale back piece of the chair. Using more resin, filling in the gaps resulted in a higher quality finish.

Final Model.

After multiple material tests with carbon fiber and figuring out the best techniques, I got started on the final model.

MANUFACTURING THE CHAIR LEGS

The legs posed a difficult challenge for the whole chair building process. The problem was the unique flared design and its tendency to spread out when force was applied down.

MAKING THE MOLD FOR SEAT & BACK

The templates were made of 15 total 3D printed pieces specially designed for the wet layup process. They were then assembled and finished with mold release to make the post process easier.

MAKING THE SEAT & BACK

After following the wet layup process, I trimmed the excess fibers to my intended size. I sanded down the imperfections before spraying a gloss finish. I cleaned everything up with a polishing compund.