Re: Depron foam - Deep materials
Posted: Thu Jul 25, 2019
I think this is one of Russ' drawings:
Technical support and discussion for CO₂ laser users, including RDWorks, LightBurn, Ruida controllers, maintenance and troubleshooting.
https://forum.laseruser.com/
Looking at your nozzle I would not be surprised that you have a 4" lens. If you change to a different FL lens the nozzle [distance from the lens to the part of the nozzle you measure your material FL from] will change just for your info. Russ has a number of FL/lens videos.I will try to get a 4" lens to see what happens.