Browning AP88 Bow Bracket and Bearing

thingiverse

My son-in-law had this, his favorite bow, since he was a kid (the only thing he ever won a trophy with), but the plastics were getting brittle, cracking/breaking, and disintegrating as I took it apart to measure (30+ years old). He said he checked a couple years ago and no one made/sold parts for these anymore at any cost. There were enough intact parts left for me to get measurements and recreate on the printer. I made the walls a hair thicker to withstand any shock a bit better, but the thickness is on the outside and doesn't affect fit/performance. Suggest some post-print sanding of where the supports touched anywhere for appearance (you can see in the picture I didn't on this one), and the half-cylinder crossbar and inside of the bearing part can be done to smooth the mating surfaces where they ride on each other (layer lines/support remnants). The parts are identical, but the STL includes 2 of each as its highly recommended to change both sets at the same time. I did with 100% infill, supports on bed only, .10mm res with PETG, and it fits snug but not too tight to create stress. May try annealing at 170*F for 10 minutes to see if it warps at all, to try to increase durability (dont know its longevity now... need to wait a few years/deer seasons...).