Maglite 2D to 2x26650 conversion

All you have to do is cut a ring or two off the big side of the spring, polish the inside of the cap with a dremel and wire brush or sandpaper so said spring makes good contact, then buy whatever 3-5W LED maglite bulbs you want for cheap on the aliexpress and you can upgrade your 2D Maglite to a much brighter and decent lasting flashlight. This is the perfect size to squeeze firmly into the flashlight but allow the batteries to slide right out. I printed with PETG with .28 layering for speed and worked great but needed good support in my Kobra 3 bedslinger which would throw it off without the tree supports adding extra bed adhesion.

28mm inner with 31.5mm outer ring for anyone who wants to make it for bigger 3-6D maglites, just remember to add the base into the equation for length as it cuts short before the threads