Make: Volume 58 – Come Together

Do It Together!

Making is better when you’re doing it with friends! In Make: Volume 58, we explore different ways to tackle large scale projects that are way bigger than one person can handle alone.

In our cover story, get the scoop on how a team of engineers built giant robot Megabot to fight for glory in the world’s first real-life mecha battle. Then, discover the latest in robo races and build your own autonomous R/C car.

You’ll find 14 projects inside, including:

  • Send stealthy messages with Morse code over the internet
  • Play electronic audio games by drawing circuits with conductive ink
  • Keep kitty entertained with a chaotic double pendulum toy

And more!

ON THE COVER: The MegaBots Mk.III weighs in before entering the arena.

Table of Contents

COLUMNS

Reader Input

Thoughts, tips, and musings from readers like you. Page 05

Welcome: Mission Possible

Create open communities to solve problems of greater sophistication and significance.Page 06

Made on Earth

Backyard builds from around the globe.Page 10

The Magic of Maker Faire

Glimpse some of the fantastic projects that converged at our big Bay Area event this May.Page 16

FEATURES

Standing Out

Female engineers shine at the inaugural Maker Faire Kuwait. Page 18

SPECIAL SECTION

Come Together

Building with others lets you do great things. But first, make a plan. Page 26

MegaBet

The brash MegaBots team is gambling on a bigger, better mech.Page 28

Building Burning Man

Collaborative art is more than just projects — it builds up community.Page 34

A Global Party Game

MakeItGo brings together different makerspaces to create an iterative project.Page 36

Skylab

Telescope workshops share the thrill of peering through the cosmos. Page 37

Growing Grass Roots

Bottom’s Up Garden is a unique hub for culture and events.Page 38

Taking Off

Communities make R/C flight more approachable.Page 44

Hamming It Up

Connect with the global community of amateur radio enthusiasts. Page 46

All Aboard

Explore the multifaceted world of model railroads. Page 47

Hands-Free Racing

Build a $200 Raspberry Pi car that uses machine-learning software to drive.Page 48

Super Pumped

Make a balloon arch to elevate your next event.Page 54

SPECIAL SECTION

Covert Communication

Trade secret messages in Morse code with a button, a buzzer, and a Pi Zero. Page 62

1+2+3: Scrap Fabric Twine

Upcycle fabric pieces and offcuts into something practical. Page 67

Sounds Like Fun

Play electronic audio games by drawing circuits with conductive ink.Page 68

Chaotic Cat Toy

Build an unpredictable compound pendulum with two weights, a piece of string, and a toy mouse.Page 72

Bucky’s World

Laser-cut a map that goes from 2D to 3D with very little distortion. Page 74

Vintage Ventilation

Build a custom car-window scoop and let the fresh air in.Page 76

Toy Inventor’s Notebook: String Climbing Racers

Based on an old folk toy using friction and alternating tension/slack, make two and have a race!Page 80

SKILL BUILDER

Don’t Slip

Here’s the lowdown on how to hold down your workpiece for CNC.Page 82

TOOLBOX

Toolbox

Check out reviews of GearBest DIY Laser Engraver, Howtoons Kits, and more. Page 88

Review: BCN3D Sigma 2017

Much improved in quality and performance, this 3D printer shows great promise.Page 92

SHOW & TELL

Show & Tell

Get inspired for this year’s Halloween haunt with our contest winners from 2016.Page 96