High-resolution screen printing demystified

A complete guide to making high-resolution screen prints with minimal tools.



Notes: When applying film emulsion to the screen, the matte surface should face the screen.  The glossy surface is the plastic backing, which is removed later, just before exposure.

The resolution test shown in the video actually indicates line width, not pitch.  So, the 1mm sample has 1mm lines and 1mm spaces.  Thus, the pitch is actually 2mm.

The Nazdar paint instructions say there is a 30 minute "induction" period that is needed for the catalyst to start working.  Nope. Just weigh out the paint and catalyst, mix, and immediately apply to the screen. Print the needed items quickly, and clean it off the screen as soon as possible.  Use disposable mixing cups / tools.  It is *messy*!

Shopping list:
Pre-stretched screen: https://www.mclogan.com/shop/aluminum-12x17-p-1173-c-293_297_379_3.html
Squeegee: https://www.mclogan.com/shop/squeegees-per-inch-durometer-p-5-c-293_297_1_4.html
Epoxy paint: https://www.mclogan.com/shop/nazdar-ade-series-epoxy-screen-ink-p-1145.html
Paint cleaner: https://www.mclogan.com/shop/mclogan-graphic-press-wash-p-156.html
Emulsion remover: https://www.mclogan.com/shop/mclogan-emulsion-remover-concentrate-p-149-c-187_42_44.html
Degreaser: https://www.atlasscreensupply.com/store/p/163-ICC-858-Stain-Remover/Degreaser-Quart.aspx
Film emulsion: https://www.atlasscreensupply.com/store/p/772-DuraCap-11-x-14.aspx
Vellum paper: https://www.amazon.com/Office-Depot-Premium-Translucent-Vellum/dp/B014SBHGMQ/


Consider using 365nm LEDs instead of fluorescent tubes for exposure.

https://www.patreon.com/AppliedScience

Behind the scenes at Applied Science: Why video? Camera gear. Shop tour.

Ask questions in the comments, and I'll answer as many as I can.

I show my video production process, answer questions about why I make videos, discuss camera gear, and do a quick shop tour.


Steve Ramsey on 10 years of YouTube: https://www.youtube.com/watch?v=uAJ01VAmAKQ

Smarter Every Day does a great job at capturing the excitement of discovery: https://www.youtube.com/watch?v=AnaASTBn_K4

https://www.patreon.com/AppliedScience

Laser diode self-mixing: Range-finding and sub-micron vibration measurement

A plain laser diode can easily measure sub-micron vibrations from centimeters away by self-mixing interferometry!  I also show how this technique can be used for range-finding.

http://sci-hub.tw/http://iopscience.iop.org/article/10.1088/1464-4258/4/6/371/pdf

https://www.jameco.com/Jameco/Products/ProdDS/2120428.pdf

https://www.spiedigitallibrary.org/journals/optical-engineering/volume-57/issue-05/051506/Overview-of-self-mixing-interferometer-applications-to-mechanical-engineering/10.1117/1.OE.57.5.051506.full?SSO=1

Nerd Thunder!  Check them out!
Dean Segovis: https://www.youtube.com/user/HackaweekTV
Jeri Ellsworth: https://www.youtube.com/user/jeriellsworth
Becky Stern: https://www.youtube.com/user/bekathwia
Ben Krasnow: https://www.youtube.com/user/bkraz333
John Schuch: https://www.youtube.com/user/HackersBenchTV
Darren Landrum: https://www.youtube.com/user/dmlandrum
Joe Grand: https://www.youtube.com/user/kingpinempire
Mark VandeWettering: https://www.youtube.com/user/brainwagon


https://www.patreon.com/AppliedScience

MEMs oscillator sensitivity to helium (helium kills iPhones)

I tested the 32KHz MEMs oscillator used in some phones, and discovered that just a 2% helium environment will cause the oscillator to fail.  I also do a teardown of the MEMs device, and inspect it under the electron microscope.

iFixit blog post: https://ifixit.org/blog/11986/iphones-are-allergic-to-helium/  and vid:  https://www.youtube.com/watch?v=D0YLW6v5hrA


Original thread about MRI facility and iPhone failure on Reddit: https://www.reddit.com/r/sysadmin/comments/9mk2o7/mri_disabled_every_ios_device_in_facility/



MEMs silicon encapsulation:  http://micromachine.stanford.edu/~bongsang/pdf/Candler_2005_Transducers05_Hydrogen_diffusion_encapsulated.pdf

Applied Science on Patreon: https://www.patreon.com/AppliedScience

Dry water and Burning ice: all about gas hydrates

Two unusual materials with unusual names.  I show how to make "dry" water and propane gas hydrate, which looks like ice and is flammable.




Dry water
http://www.diva-portal.org/smash/get/diva2:1024928/FULLTEXT02.pdf

Propane clathrate
https://sci-hub.tw/10.1021/jp3035049

Propane hydrate formation
https://sci-hub.tw/10.1021/ie0207764

Methane storage in hydrates
https://sci-hub.tw/10.1021/ja8048173

Propane hydrate:
https://ps.uci.edu/scholar/sites/default/files/making_a_propane_clathrate_hydrate_1.pdf

https://www.netl.doe.gov/research/oil-and-gas/project-summaries/completed-env/fwp-feab112

Propane vapor pressure:
https://www.engineeringtoolbox.com/docs/documents/1020/propane_C3H8_vapour_pressure.pdf

Fumed hydrophobic silica on eBay:
https://www.ebay.com/itm/Hydrophobic-Fumed-Silica-Powder-2-Qt-64-oz-volume/123100048097


https://www.patreon.com/AppliedScience