I have an OMTECH 60W CO2 laser and I wanted to experiment with reverse alignment. At around $50 a pop for an “official” one I decided to buy a $9 one from Amazon (Amazon.com : Laser Bore Sight, 12 Gauge Shot Gun Red Dot Boresighter with 6 Batteries（2 Set Batteries） : Sports & Outdoors) and print a 24mm “C” series lens tube. The boresight laser measures 20.3mm, which is the ID of the adapter. I printed it using PLA basic .20mm and %15 infill (nothing fancy). It was created using TinkerCAD and I imported the STL into Bambu Studio. I've only had my P1S for about two weeks, and this is my first go at uploading something.