DIY Coffee Grinder - A Mechanical Design Project

Around a year ago I embarked on a design project to teach myself some mechanical design and machining skills. Based around a stainless steel conical burr set and a 12V windshield wiper motor, I designed and built this coffee grinder (pretty much) from scratch. I'm making this video as an easy way to share my learning journey and hopefully inspire others to start their own. 00:00 Intro 01:06 Features 01:38 Burr Set and Motor 02:44 Key Concepts 04:28 Outer Burr Assembly 06:42 Inner Burr Assembly 08:23 Frame Assembly 09:12 Drivetrain Assembly 10:27 Fast Forward Assembly 11:20 Design Lessons