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3D Printing With Circuits
Tools + Materials
Table Saw Class
Laser-engraved phone standView Instructable »
Laser-cut jigsaw puzzleView Instructable »
That's Photoshop, but almost any photo editor has those features. I do like how you can see the histogram under the Curves dialog box so you can see what tones you're separating.
Optimize your art for laser...View Instructable »
Raspberry Pi Class
Public Domain images from m...View Instructable »
LEDs and Lighting Class