Day 6: (Mon Sep 18, Week 4) Fidget Toys

Notes for 2023-09-18.

New Assignments

New assignment, due Mon Sep 25: Exercise: Actuated Marble Run Tile. Please see Assignment 4 Posts: Actuated Tile for submission links.

Administrative

1. Comments on 3D-printing workflow.

2. Discussion of Children’s School visits on calendar: Wed Sep 27, Mon Nov 6, Mon Dec 4.

Agenda

1. In-class testing of the 3D-printed Fidget Toys.

2. discussion of new assignment

   • Visual Part Guides

3. more SolidWorks technique

   • walkthrough of new sample models for assignment

   • section views

   • reference geometry

   • assemblies

   • stock components

   • simulating kinematics in assemblies

Linkage Figures

• http://507movements.com/mm_158.html

• http://507movements.com/mm_140.html

• http://507movements.com/mm_144.html

• http://507movements.com/mm_246.html

Four-bar linkage example, abstracted to simple link shapes. In the sample actuated tile above the ‘ground’ link role is played by the base, the input rocker is the servo horn, the output rocker is the ball driver, and the connecting link is a wire tie rod.

Inspiration Videos

• Marble Mountain (YouTube), Ben Tardif

• Robotic marble maze (YouTube)

• 1972 Nishijin M-11 Pachinko Machine (YouTube)

• Wintergatan - Marble Machine (music instrument using 2000 marbles) (YouTube)

• Turing Tumble binary counter (YouTube)

• Marble adding machine (YouTube)