[chbot] Laser cutter controller board

[Keith Colson]

Hi Jody

You can see my extraction system here which gets the smell away from the 
neighbours without the need for expensive filters that will need 
replacement. You will need a log in for the pictures to show

https://sawmillcreek.org/showthread.php?230406-My-extraction-system&styleid=4

You can view the pictures here too.
https://edns.co.nz/lasercutter/extraction/

Regards
Keith Colson