I have been thinking, my Epilog laser lens needs cleaning often, and Epilog actually advertises that having an open lens is better for ease of cleaning. I think if you have a closed lens with air flowing around it blowing at the center would keep the lens clean. No matter what the focal length is, air blowing at the center will always point at the burning object. It feels so obvious that a closed lens would be better.
Folks having closed lenses how often do you clean your lenses? There might have been some patent issues that has made Epilog go to the open lens configuration. I was hoping if some one could come up with a replacement or an attachment that closes the lens and directs the air around it, I will be the first one to buy one. Has anyone looked into it, or is there one such attachment available.
Kim