Please see the below air assist pump info. And you can watch the video on Youtube about cutting 20mm Pinewood in the 4OW Laser module.
(3) 40W Laser Module on Snapmaker Artisan, cutting 20mm pinewood in one pass with Air Assist on! - YouTube
Cutting 15mm basswood plywood:
(3) Cutting 15mm Basswood Plywood in one pass with 40W Laser Module running on Snapmaker Artisan. - YouTube
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