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Microfab Spin Coater

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Spin Coater Prototype

Team[edit]

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]

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]

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]

Printable Parts & Diagrams
Enclosure  
Enclosure Lid  
Motor Guide Plate  
Mounting Plate  
Motor Controller Wiring Diagram  
Spin Coater Final Print