Microscale

Rapid

PrototypingMicroscale Rapid Prototyping

Melissa Appel

Eric Dávila

Andrew Maclennan

OverviewOverview• Review

– Purpose– Modeling

• Problems Encountered

• Accomplishments• Current Work

– The Overhang!– New Materials

• Future Work• Our Website

OverviewOverviewOverview

PurposePurpose

• To Discover More about Butterfly Wings by Modeling Their Scale Structures

lower lamina

ridges

crossrib

lamellae

upper lamina

~0.5 m

scale cross section

–How they Trap Heat

–How they Display Colors

PurposePurpo

PurposePurpose

ModelingModeling

• Single Layer Structure– Spin out a Thin Layer of

SU-8 on a Glass Slide– Cure a Pattern in the

SU-8 Using UV Light– Develop the Slide to

Wash Away Unexposed SU-8

ModelingModelingModeling

EncounteredProblems Encountered

• Stage Movement

• Spin Coater

• FSC/SU-8 Interaction

• Align Cure Pattern

• Offset for UV Curing

• Multilayer Overhang

ProblemsProblemsProblemsProblems

AccomplishmentsAccomplishments

• Worked Around Stage Disadvantages

• New Spin Coater

• Experimented With Different

Materials

• Second Light to Align Cure

Pattern

• Optimized Offset for UV Curing

AccompAccomplishments

Accomplishments

Work

CurrentCurrent Work

• The Overhang!

CurrentCurrentCurrent

Y

Z

X

Y

Z

25 m

X

Z

TapeFSC

NOA81

PolishNail

Current Work

• New Materials– Polyurethane– Varnish– Nail Polish

Nail PolishNail PolishNail Polish

WorkFuture

Future Work

• Improve Stage

• Make Structures Smaller

• Experiment With New Materials

• Multilayer Overhang

FutureFutureFuture

WebsiteOurOur Website

WebsiteWebsiteWebsite