[chbot] Personal Laser Cutter

[Andy ZL3AG]

On 22/06/2017, at 10:14 PM, Mark Atherton wrote:

> Spent some time with a 160W unit trying to cut ply; ended up starting a fire inside the material, this was exterior grade ply.

Exterior grade ply is likely H3.2 rated which would be treated with CCA – Copper chromium arsenate - I wouldn't want to be breathing in whatever fumes were coming off THAT laser.