Spin Sling 360 Knob to Lever Kit

myminifactory

Judges/Everyone - please watch the Making-Of video at https://vimeo.com/181556448. Dozens of hours went into making this video. It features: Design Methodology Engineering Challenges Assembly Demonstration Excellent Handwriting! GIFs - if uploaded GIF videos of the lever in-use don't show their animation, I have also uploaded them to Giphy.com: Rotating: https://giphy.com/gifs/l0MYy0DrZ2gyQiBVK Spinning: https://giphy.com/gifs/l0MYvxeopOP72wKWY The Spin Sling 360 Knob to Lever Kit was designed to turn door knobs into levers. Functional Design Features: Concave Lever for Easy Fist Handling Free Spinning Lever for Easy Pulling Universal Design for All Knob Diameters 3D Printing Features: 100% 3D Printed - no hardware (nuts, bolts, etc.) No Post-Processing - all parts print without supports Basic Materials (PLA or ABS) - no exotic filament required (like flexible filament) All Mechanical Connections - no adhesives/glue A New 'Spin' On Door Levers Fundamentally, door levers are made to grasp with fingers. There is not enough clearance between the door and the lever for a fist when pulling. The Spin Sling 360 has a concave lever that spins. Simply turn your wrist to spin the lever and the concave shape adds extra clearance for your fist. Print Settings: All parts were printed as follows: Nozzle: 0.4mm Layer Height: 0.1mm Speed: 50mm/s Supports: None Adhesion: Skirt Infill Density: 20% Slicer: Cura