https://www.reddit.com/r/AerospaceEngineering/comments/w2b7ue/my_team_won_an_interuniversity_uav_competition/
Using a CNC Router to Machine Aerospace Grade Mold Patterns (part 2)
Most complicated CARBON FIBER part in the DarkAero 1!
https://www.reddit.com/r/oddlysatisfying/comments/w3hju1/this_corner_folding_device/
https://www.reddit.com/r/MechanicalEngineering/comments/w2lids/what_are_the_benefits_of_this_gear_and_tooth/