DIY laser cutter w/ cheap diode laser

[David Knaack]

XY motion platform + $10 diode laser + simple constant-current supply

http://hardwarebreakout.com/2013/03/diy-laser-cutter-for-pcb-stencils/

Pretty cool. Nowhere near as much power as the 40W tube in the cutter at the space, but certainly enough for cutting thin, laser-opaque materials like vinyl sheet.

Might be a nice auxiliary head for a reprap for doing things like marking control panels and such.