How to make and test your own pieces of YBCO superconductor.
Best how-to resources for YBCO:
http://physlab.org/wp-content/uploads/2016/04/Superconductor_manual1.pdf
http://www.futurescience.com/scpart1.html
https://pubs.acs.org/doi/pdf/10.1021/ed078p1182.1 -- I couldn't get this to work.
All chemical purchased on eBay.
The kiln that I used: https://www.sheffield-pottery.com/PARAGON-QUIKFIRE-6-KILN-p/pqf6.htm
Colored ferrofluid: https://www.amazon.com/Emerald-Green-Ferrofluid-60ml-Display/dp/B015WNU9NM/
Pax temperature logger: http://paxinstruments.com/products/sku927/
Keithly SMU: https://www.tek.com/keithley-source-measure-units/keithley-smu-2400-series-sourcemeter
Applied Science on Patreon: https://www.patreon.com/AppliedScience
Sunday, February 25, 2018
Sunday, January 28, 2018
Flashing Light Prize 2018 - Sunscreen, UV, and neon
A very unusual way to flash a neon lamp using sunscreen.
Aerolux lamps: https://en.wikipedia.org/wiki/Aerolux_Light_Corporation
Good selection of gear motors at Jameco: https://www.jameco.com/shop/keyword=12Vdc-Gear-Motor
Awesome Keithly SourceMeter: https://www.tek.com/keithley-source-measure-units/keithley-smu-2400-series-sourcemeter
This video is a freebie for Patreon supporters, and I will donate any awards to a STEM education charity.
Aerolux lamps: https://en.wikipedia.org/wiki/Aerolux_Light_Corporation
Good selection of gear motors at Jameco: https://www.jameco.com/shop/keyword=12Vdc-Gear-Motor
Awesome Keithly SourceMeter: https://www.tek.com/keithley-source-measure-units/keithley-smu-2400-series-sourcemeter
This video is a freebie for Patreon supporters, and I will donate any awards to a STEM education charity.
Wednesday, December 27, 2017
Gas-powered waterjet cutter (and other project updates)
Build a capable waterjet cutter from a commercial pressure washer.
Sources:
Cutting head - https://www.accustream.com/waterjet-parts/accustream/a2/a2-cutting-head/12272.html
Orifice - https://www.accustream.com/waterjet-parts/accustream/accustream-orifices-nozzles/ruby-diamond-orifices/11007-XXX.html
Mixing tube (nozzle) - https://www.accustream.com/waterjet-parts/accustream/accustream-orifices-nozzles/nozzles/12781-045-30.html
Pressure washer - https://www.amazon.com/Excell-EPW2123100-Powered-Pressure-Washer/dp/B01MZEIYM7
Pressure washer hose coupling (for brazing into cutting head) - https://www.amazon.com/gp/product/B01MXW4GG9/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
eBay CNC milling (eg) - https://www.ebay.com/itm/USB-CNC-ROUTER-ENGRAVER-ENGRAVING-CUTTING-3-AXIS-3040T-300X400MM-MACHINE-MILLING/272920186416?epid=21006871220
Applied Science on Patreon - https://www.patreon.com/AppliedScience
Saturday, November 25, 2017
Glass engineering - designing and making photochromic glass
How to make small batches of specialty glass with minimal equipment.
Good overview glass engineering book from 1920 (how to choose ingredients) : http://www.wallace-venable.name/Glass/bastow_American_Glass_Practice.pdf
"5mW" *nudge-wink* 405nm laser pointer: https://www.ebay.com/itm/5MW-405nm-High-Powerful-Blue-Voilet-Purple-Laser-Pointer-Pen-Lazer-Beam-Light/381987406125
Alumina melting dish on eBay: https://www.ebay.com/itm/Crucibles-Melting-Dishes-Ceramic-4-Size-Casting-Torch-Melt-Jewelry-Gold-Silver/291595276663
Source of kiln paper, mold release, molds, glass fusing supplies: https://www.delphiglass.com/
Paragon Quickfire kiln: https://www.sheffield-pottery.com/PARAGON-QUIKFIRE-6-KILN-p/pqf6.htm
Case of 12 insulating fire bricks: https://www.ebay.com/itm/IFB-Thermal-Ceramics-K26-2-5-12-pk/130342021835
Graphite mold: https://www.ebay.com/itm/5-in-1-Gold-Melting-Graphite-Ingot-Casting-Refining-Scrap-Bar-Coin-Combo-Mold/321838368964
Relevant patents for photochromic recipes: https://docs.google.com/viewer?url=patentimages.storage.googleapis.com/pdfs/US2515936.pdf
https://docs.google.com/viewer?url=patentimages.storage.googleapis.com/pdfs/US3548060.pdf
https://patentimages.storage.googleapis.com/b1/76/10/d4bd570c1a161c/US4374931.pdf
https://patentimages.storage.googleapis.com/26/71/a3/481dc009490fe6/US2515275.pdf
https://patentimages.storage.googleapis.com/a1/cf/ef/a11d9037375914/US2684911.pdf
https://patentimages.storage.googleapis.com/0c/b0/d2/d53ec9e6fd478a/US3548060.pdf
https://patentimages.storage.googleapis.com/3d/31/3b/0b3bc6c18b7ef3/US3419370.pdf
Applied Science on Patreon: https://www.patreon.com/AppliedScience
Sunday, October 29, 2017
Fast partial refresh on 4.2" E-paper display from Waveshare / Good Display
Google Drive link with Arduino firmware used in this project: https://drive.google.com/open?id=0B4YXWiqYWB99UmRYQi1qdXJIVFk
I bought the Waveshare devices on Aliexpress: https://www.aliexpress.com/item/400x300-4-2inch-E-Ink-display-module-SPI-Without-backlight-Compatible-with-variuous-board-Ultra-low/32827172081.html
Datasheet with the 42-byte LUT format used in the 4.2" display, but not the exact correct part.
https://www.smart-prototyping.com/image/data/9_Modules/EinkDisplay/GDEW0154T8/IL0373.pdf
Interesting thread with other folks experimenting with LUTs on the 2.7" display.
https://github.com/olikraus/u8g2/issues/318
Waveshare (distributor) datasheet
https://www.waveshare.com/w/upload/6/6a/4.2inch-e-paper-specification.pdf
Good Display (manufacturer) datasheet
http://www.good-display.com/products_detail/productId=321.html
Waveform "theory" with class 7-5-7 pulse sequence:
http://www.multicomponent.se/sub_group_files/13dae3f428be3929dc13fed1f79c5e40.pdf
My favorite microcontroller dev board, the Teensy: https://www.pjrc.com/teensy/
The new awesome 5-series oscilloscope from Tek: https://www.tek.com/oscilloscope/5-series-mso-mixed-signal-oscilloscope
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