How to make etched metal parts.
-All of the highest quality parts that I made went to the customer, but edge quality and photoresist adhesion is still a problem.

-The photomask dark areas can be expanded, and then the part etched for a longer amount of time to make the edges more perpendicular to the surface. I forgot to mention this clever way to improve the etch aspect ratio called "etch factor" http://www.chemcut.net/wp-content/upl...

-Dry film photoresist https://www.amazon.com/30cm%C3%975m-P...

-Photoresist processing datasheet https://www.dupont.com/content/dam/du...

-Special ink and transparencies (films) for photomasks: https://filmdirectonline.com/

-Flip pins https://shop.evilmadscientist.com/pro...

-405nm lights: https://www.amazon.com/gp/customer-re...

-Epson printer with tank for custom ink: https://epson.com/For-Work/Printers/I...

-Strange Parts did a great video on metal business cards:    • These STEEL Business Cards WEREN'T Ma...  

-https://mymetalbusinesscard.com/produ... 100 cards for $250 could be the cheapest way to get custom mechanical parts:    • How to Make Metal Business Cards: The...  

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