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LED Light Drawing Pens: Tools for Drawing Light Doodles
Wow, I looked up a 4"4"8" block of plexiglas is expensive! I would be afraid of messing that up. http://www.shoppopdisplays.com/10125/solid-clear-acrylic-block-4-x-8-x-8.html
Are the tiny lines where you glued two blocks of plexiglass together?
Table Saw Class
Laser Cutting Class
Raspberry Pi Class
3D Printing Class
How to make a super-bright LED light panel (for video work etc)
Waist High Planter Box
Rodent Resistant Composter