{"id":69638,"key":"Microfab_Spin_Coater","title":"Microfab Spin Coater","latest":{"id":1207072,"timestamp":"2025-11-27T21:27:32Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"[[File:Spin Coater.JPG|thumb|Spin Coater Prototype]]\n\n== Team ==\n\n'''Elizabeth Held'''\nUndergraduate Student,\nElectrical & Computer Engineering\n\n'''Maxwell Curtis'''\nUndergraduate Student,\nMechanical Engineering\n\n'''Kyle Price'''\nUndergraduate Student,\nMechanical Engineering\n\n'''Daniel Hannah'''\nUndergraduate Student,\nElectrical Engineering\n\n'''Ricardo Reyes'''\nUndergraduate Student,\nElectrical Engineering\n\n== Project ==\n\n'''Mircofab Lab: Spin Coater'''\n\nAn open source flat spin coater for use in the microfabrication lab, used to spin extremely thin layers onto wafers or other materials.\n\nA commercial low-end spin coater would cost approximately $1300, this holder will cost approximately $6 to print, plus\nIt takes about one day to print all the parts, using only one printer.\n\n[http://3dprint.nih.gov/discover/3dpx-004083 NIH Link] - This page contains:\n\n* STL and OpenSCAD files for each printable part\n* Arduino motor controller code\n* Motor controller wiring diagram/EAGLE schematic\n\n== Prototype ==\n\n'''Bill Of Materials'''\n\n* 1x 18000 rpm motor $12.88\n* 1x L289N motor controller $6.99\n* 1x 10kOhm potentiometer $7.91\n* 1x Arduino mini microcontroller $6.51\n* 1x 12V 2A power supply $7.99\n* Approx. 1 kg of PLA filament per gram - $22.99\n* 2x 1/4-20 x 2 1/2\" Bolts $0.35 ea. - $0.70\n* 2x 1/4-20 x 3\" Bolts $0.40 ea. - $0.80\n* 4x 1/4-20 Nuts $0.07 ea. - $0.28\n\nTotal Cost ~ $67.16 //\nTotal Savings ~ $1232.84\n\n'''Installation and Use'''\n\n* Plug into wall outlet\n* Adjust dial on front of the device to control speed of spinning plate.\n* Ensure lid is secure on top of spinner before starting.\n\n== Gallery ==\n\n<gallery>\n\nImage:SpinCoater_Enclosure.png|Enclosure\n\nImage:SpinCoater_Lid.png|Enclosure Lid\n\nImage:SpinCoater_Motor_Guide_Plate.png|Motor Guide Plate\n\nImage:SpinCoater_Mounting_Plate.png|Mounting Plate\n\nImage:OSH_Wiring_Diagram.png|Motor Controller Wiring Diagram\n\nImage:Spin_Coater.JPG|Spin Coater Final Print\n</gallery>\n\n{{Page data\n| license = CC-BY-SA-3.0\n}}\n\n[[Category:Devices]]"}