the core puzzle medium level —

Founded the core puzzle medium level models & stl files for printing
Nut Case puzzle
MyNameIsntBob
3 Cube Puzzle
mtairymd
Puzzle maze One
KW-Puzzles
Puzzle Box
Steven
Cube Puzzle  Brain Teaser
Creative MinerX
8 Ball Puzzle
tmackay
Puzzle box 1
merakrom
Puzzle Block C
BentWeiss