May 2014
Intermediate to advanced
116 pages
5h 50m
English
Learning new tricks every issue
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Use chemical milling to cut intricate shapes from brass or stainless steel.
Written, illustrated, and photographed by Bob Knetzger
EASY

WHILE WORKING ON THE “DESKTOP FOUNDRY” project for MAKE Volume 36 (makezine.com/desktop-foundry), I was surprised to learn that my local shops with C02 laser cutters wouldn’t cut brass. It’s too reflective and can damage the lenses. What to do? Instead, I thought I’d try to create the intricately detailed brass parts using a different process: photo etching. Better living through chemistry! ...
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