My K40 laser bed

Spring loaded laser bed that I built for my K40 Laser engraver. i spent a little over $10 to do this project because i had a couple of the items already. from scratch you might spend about $25 or so.
items i used. not all are listed, but will update when i find the links.
aluminum stock
www.homedepot....
springs
www.harborfrei...
thingiverse files
www.tinkercad....