Guest
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“ -Dry film photoresist ×5m-Portable-Photosensitive-Production-Photoresist/dp/B07MMVPY1Z/ -Photoresist processing datasheet -Special ink and transparencies (films) for photomasks: -Flip pins -405nm lights:
