Team[edit | edit source]
Elizabeth Held Undergraduate Student, Electrical & Computer Engineering
Maxwell Curtis Undergraduate Student, Mechanical Engineering
Kyle Price Undergraduate Student, Mechanical Engineering
Daniel Hannah Undergraduate Student, Electrical Engineering
Ricardo Reyes Undergraduate Student, Electrical Engineering
Project[edit | edit source]
Mircofab Lab: Spin Coater
An open source flat spin coater for use in the microfabrication lab, used to spin extremely thin layers onto wafers or other materials.
A commercial low-end spin coater would cost approximately $1300, this holder will cost approximately $6 to print, plus It takes about one day to print all the parts, using only one printer.
NIH Link - This page contains:
- STL and OpenSCAD files for each printable part
- Arduino motor controller code
- Motor controller wiring diagram/EAGLE schematic
Prototype[edit | edit source]
Bill Of Materials
- 1x 18000 rpm motor $12.88
- 1x L289N motor controller $6.99
- 1x 10kOhm potentiometer $7.91
- 1x Arduino mini microcontroller $6.51
- 1x 12V 2A power supply $7.99
- Approx. 1 kg of PLA filament per gram - $22.99
- 2x 1/4-20 x 2 1/2" Bolts $0.35 ea. - $0.70
- 2x 1/4-20 x 3" Bolts $0.40 ea. - $0.80
- 4x 1/4-20 Nuts $0.07 ea. - $0.28
Total Cost ~ $67.16 // Total Savings ~ $1232.84
Installation and Use
- Plug into wall outlet
- Adjust dial on front of the device to control speed of spinning plate.
- Ensure lid is secure on top of spinner before starting.
Gallery[edit | edit source]
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Enclosure
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Enclosure Lid
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Motor Guide Plate
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Mounting Plate
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Motor Controller Wiring Diagram
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Spin Coater Final Print
