Reader Input
Notes from readers like you.Page 06
Make: 71 – Fix Our Planet
Climate change is an urgent threat but if we makers act now, we can still make a difference at both micro and macro levels. Our cover story, the kickoff to a series that will run through 2020, gives a big-picture look at what steps we can take to arrest climate change. Hint: It starts by electrifying everything!
Then, we look at some tasty tech with the story of a seriously impressive cheeseburger-making robot, recipes to cook delicious insects, and instructions to build a Raspberry Pi-powered cocktail dispenser for your next BBQ or robot-themed party.
Plus, 21 projects to make, including:
- Hack the Sonos-Ikea Symfonisk to make high-quality, networked bookshelf speakers on a budget
- Build the world’s newest, simplest siege weapon, the Walking Arm Trebuchet
- Fold and fly the Guinness World Record paper airplane
- Make a jig for quick, easy, and beautiful box joints
- Our best-yet DIY coffee bean roaster
- And much more!
On the Cover: Our appeal to makers everywhere to help lead the charge of arresting global warming before it’s too late.
Table of Contents
Columns
Welcome
Mike Senese
Introducing some new Make: installments. Page 07
Made on Earth
Backyard builds from around the globe.Page 08
Features
Project Community Profile: Hackaday.io
Dan Maloney
The DIY electronics diehards take us on a tour of their platform, contests, and annual gathering.Page 14
YouTube Maker Profile: Jimmy DiResta
Caleb Kraft
With pencils, stencils, and his trusty bandsaw, Jimmy inspires makers everywhere.Page 20
Calling All Climate Makers: Electrify Everything
Saul Griffith
The children are right: To solve climate change, we need an epic effort to electrify vehicles and homes. Makers can make it happen. Page 24
Tasty Tech
World’s First Cheeseburger Robot
Keith Hammond
How two young engineers overcame doubters (and Interstate 5) to automate the freshest burger ever served.Page 30
Bug Grub
Rima Khalek
Insect meal is a healthy, environmentally-friendly food option. Here’s how to get started preparing it to eat.Page 38
Best-Yet DIY Coffee Roaster
Larry Cotton
Hack a flour sifter and heat gun to roast the ultimate bean.Page 42
Hello Drinkbot
Rich Gibson
Use a Raspberry Pi to build a smart dispenser that’s the “Hello World” of cocktail robotics.Page 54
Projects
Sonos for All
Ben Hobby
Hack the Sonos-Ikea Symfonisk to make a high quality networked bookshelf speaker on a “budget.”Page 62
Flat-Out Flinger
Jonathan Stapleton
Build the world’s newest, simplest trebuchet and break some chuckin’ records.Page 68
LED “Inner Glow” Heart
Debra Ansell
Create brilliant displays and décor with this new interior edge-lighting trick.Page 82
World’s Best Paper Airplane
John Collins
Fold and fly the Guinness record glider “Suzanne.”Page 86
Remaking History: Ismail al-Jazari and the Elephant Clock
William Gurstelle
Build the constant-flow water clock invented during Baghdad’s great Golden Age.Page 94
Tiny Dancer
Hiroshi Maeda
With a Raspberry Pi Zero as its brain, this homebrew robot doll is a stunningly smooth mover.Page 100
Storm Warning
Alex Wulff
Build your own wearable lightning detection system.Page 104
Toy Inventor’s Notebook: Custom Toast Stamper
Bob Knetzger
Emboss your breakfast like a boss.Page 108
Skill Builder
Fasten-ating World of Fasteners
Brian Bunnell and Samer Najia
Get a grip on the nuts and bolts of holding your project together with this guide.Page 110
Quick and Easy Box Joints
David Picciuto
Master this stylish joinery technique with a simple-to-make table saw jig. Page 118
Toolbox
Toolbox
Gear up with the latest tools and kits for makers.Page 124
Over the Top
Running the Numbers
Florian Hu
This intricately geared 7-segment display gives a gorgeous view of your YouTube subscriber count.Page 128
