YouTube user "yourbeekeeper" uses his 3d printer to repair an vintage air rifle. He services and makes replacement parts for Crosman 2200 Magnum.
Yourbeekeeper YT channel:
https://www.youtube.com/channel/UCshrvGttm2d-9gbkPGz-Ojg
Yourbeekeeper YT channel:
https://www.youtube.com/channel/UCshrvGttm2d-9gbkPGz-Ojg