Davis Sextant to Celestaire Bubble Artificial Horizon Adapter

Print at (10% at scale)Press fit adapter for Celestaire Practice Bubble Horizon AKA artificial horizon to fit Davis Mk12, Mk15, and Mk25 plastic sextants. The alternative is to purchase a very expensive commercial navigators sextant, using a bowl of water or puddle sun reflection, or buying(or printing https://www.thingiverse.com/thing:2123500) folding water box for reflecting the sun which Davis actually sells for inland practice. Cost is an important consideration now that a sextant is mostly