![Final test of upgraded K40: Importance of focusing the beam - Uncategorized-to-sort - LightBurn Software Forum Final test of upgraded K40: Importance of focusing the beam - Uncategorized-to-sort - LightBurn Software Forum](https://forum.lightburnsoftware.com/uploads/default/original/2X/6/6b442579b984f9c07c7f958819682fd78e1d5995.jpeg)
Final test of upgraded K40: Importance of focusing the beam - Uncategorized-to-sort - LightBurn Software Forum
![Amazon.com: Lightobject 12mm/15mm/18mm/20mm Laser Head with Air Assisted Connector. Ideal for K40 Machine : Sports & Outdoors Amazon.com: Lightobject 12mm/15mm/18mm/20mm Laser Head with Air Assisted Connector. Ideal for K40 Machine : Sports & Outdoors](https://m.media-amazon.com/images/I/51FbiPd8kLS.jpg)
Amazon.com: Lightobject 12mm/15mm/18mm/20mm Laser Head with Air Assisted Connector. Ideal for K40 Machine : Sports & Outdoors
![Amazon.com: Comgrow Air Assist for Laser Cutter and Engraver,Air Assist Pump Kit with Adjustable 30L/Min,for CNC Cutting and Laser Engraving,Remove Smoke and Dust,Protect Laser Lens, Reduce Surface Temperature Amazon.com: Comgrow Air Assist for Laser Cutter and Engraver,Air Assist Pump Kit with Adjustable 30L/Min,for CNC Cutting and Laser Engraving,Remove Smoke and Dust,Protect Laser Lens, Reduce Surface Temperature](https://m.media-amazon.com/images/I/71G8czlCasL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Comgrow Air Assist for Laser Cutter and Engraver,Air Assist Pump Kit with Adjustable 30L/Min,for CNC Cutting and Laser Engraving,Remove Smoke and Dust,Protect Laser Lens, Reduce Surface Temperature
![Amazon.com: Lightobject 12mm/15mm/18mm/20mm Laser Head with Air Assisted Connector. Ideal for K40 Machine : Sports & Outdoors Amazon.com: Lightobject 12mm/15mm/18mm/20mm Laser Head with Air Assisted Connector. Ideal for K40 Machine : Sports & Outdoors](https://m.media-amazon.com/images/I/51FbiPd8kLS._AC_UF894,1000_QL80_.jpg)