Here is a quick tutorial about the lightobject air assist. I address some common questions and misconceptions about installing it on the stock K40 gantry. Check out more resources at https://techbravo.net/k40. Please like, subscribe, and share! And to learn more about lenses, optics, and focucus see this KB Article: https://techbravo.net/hosting/knowled... Be sure to visit https://lasergods.com