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Printables
6 model
Free
Free30 k years ago they knew how to 3D model
Printables
FreeShure to K&M Adapters - 3/8"-16 inner to 5/8"-27 outer thread reducer
Printables
FreeRevuenon 135mm f2.8 Pentax K to Nikon F adapter
Printables
FreeChinese Bulldog extruder enhaced (a.k.a. triying to make it good)
Thingiverse
FreeQidi Xpro upgrade to Lerdge K
Thingiverse