One of the most advanced projects! JudoBots are hydraulic-powered machines that grapple with each other. The goal is to build a bot that can flip the opponent over, or push them out of the starting square!
Supply List (specialty materials can be found on Amazon)
All STEM Inventions projects share the same set of materials
(40) craft sticks
(10) 1/2” craft cubes
(6) 1/2” craft cubes with holes
(1) 1/8” dowel
Syringe, tubing, and syringe adapter kit
(2) 4” cable ties
Hot glue gun
Washer or cardboard scrap
The pivoting and lifting mechanisms are identical, but the base, arm, and grappling tool are customizable.
The base must fit within a 10x10" square, and no more than 40 craft sticks can be used to build the entire bot.
STEM Inventions is a project by me, Lance Akiyama. Since 2011, I've developed original science and engineering activities, starting with an after school business that I founded and operated until 2015. I've held a full-time role as the Science Curriculum Manager at Galileo Learning, where I created design thinking-based lessons and pet robots. I'm a long-time contributor to Instructables.com, and I've published four DIY project books with Rockport Publishers. STEM Inventions projects were developed in after school classes and summer camps over several years. All projects use the same set of just 20 different materials and 2 tools to make supply purchasing and management easier.