Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.
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Transcript of Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.
![Page 1: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/1.jpg)
Microscale Rapid Prototyping
Melissa Appel
Eric Dávila
Andrew Maclennan
![Page 2: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/2.jpg)
Overview
• Review of Last Presentation– Purpose– Modeling the Scale Structures
• Progress
• Future Work
![Page 3: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/3.jpg)
Purpose
• 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
![Page 4: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/4.jpg)
Modeling the Scale Structures
• 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
![Page 5: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/5.jpg)
Progress
• “Fixed” the SU-8, FSC Interaction Problem
• Better Way of Aligning Cure Pattern (Bottom Light)
• Took Pictures at an Angle
• Further Improved LabVIEW VI’s
• Offset for UV Curing
• New Ideas For Creation of Overhang
![Page 6: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/6.jpg)
“Fixed” SU-8, FSC Interaction
• Problem: SU-8, When Not Cured, Dissolves FSC
![Page 7: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/7.jpg)
“Fixed” SU-8, FSC Interaction
• Solution: One of Them Has to Go– Use SU-8 for Thick Column
• SU-8 Is Still Best for High Aspect Ratio
– Use Norland Optical Adhesive 81 for Layers between FSC
• NOA 81 Does Not Dissolve the FSC
![Page 8: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/8.jpg)
Aligned Cure Pattern
• Problem: Hard To Align Multiple Patterns
![Page 9: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/9.jpg)
Aligned Cure Pattern
• Solution: View Both Existing Pattern and Spot Light
» To Cure: Shine Light Through the Spotlight from the Top
» To See the Sample, Transmit Light from the Bottom
Eyepiece
Objectives
Sample holder stage
Focus wheel
Illumination forreflection
Illumination fortransmission
![Page 10: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/10.jpg)
Took Pictures at an Angle
normal incidence 35 degree tilt 75 degree tilt
70 m
![Page 11: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/11.jpg)
Further Improved LabVIEW VI’s
• Minimize Backlash– Slowed Ramp Rate– Slowed Pre-Run Speed
• Made Software Run Faster
![Page 12: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/12.jpg)
Offset For UV Curing
• UV Light Has a Different Focal Length than White Light
Z Focal Offset: 21Line thickness: 26 m
Z Focal Offset: 15Line thickness: 22 m
Z Focal Offset: 9Line thickness: 17 m
![Page 13: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/13.jpg)
New Ideas for Overhang
• Eat Away
• Diving Board
• Theme Day
![Page 14: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/14.jpg)
Eat Away
• Spin and Cure 3 Layers: SU-8, FSC, NOA81
• Develop: Timing for “Eat Away” of FSC
![Page 15: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/15.jpg)
Diving Board
![Page 16: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/16.jpg)
Spin a Layer of FSC, with Tape
FSC Tape
![Page 17: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/17.jpg)
Remove Tape
![Page 18: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/18.jpg)
Spin and Cure NOA81
![Page 19: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/19.jpg)
Develop to Remove FSC
![Page 20: Microscale Rapid Prototyping Melissa Appel Eric Dávila Andrew Maclennan.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649e165503460f94b00437/html5/thumbnails/20.jpg)
Future Work
• Still Working on Overhang