hackspace_issue42.pdf

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hsmag.cc
May
2021
Issue
#42
REPAIR
your money
May 2021
Issue #42
£6
THE
BUDGET
CNC
Automate
your carving
HOW I
MADE
A guitar
pedal tester
DIY
GAMES
Make a Raspberry Pi
Pico USB controller
REVOLUTION
Save
your tools
Save
your planet
Save
INSIDE: ESTEFANNIE EXPLAINS IT ALL
WELCOME
EDITORIAL
Editor
Ben Everard
ben.everard@raspberrypi.com
Welcome to
HackSpace magazine
“If ifs and ands were pots and pans, there’d be no work for
tinkers”, my Gran used to like to say. Of course, I had no idea
what a tinker was (it’s a travelling pan repairer if you’re also
unfamiliar with the word). The simple act of repairing a pan
was unimaginable to me, and probably to most people of
my generation. Pans last a while, then you get rid of them,
and get some new ones. Buy why? Why don’t we fix our pots
and pans? Why does it make sense to dig in the ground to
extract some ore, go through the energy-intensive process
of extracting the metal from that ore, then heat the metal up
until it’s white-hot, and form it into a pan shape? Surely it’s
easier to repair something that’s already 99% of a working pan
than start with some bits of rock that contain the basic pan-
making ingredients?
Repair is starting to become fashionable again. It’s cheaper,
better for the planet, and gives us more sense of ownership of
our things. Let’s stop throwing broken things away, and start
fixing them again. Maybe there is still work for tinkers.
BEN EVERARD
Editor
Got a comment,
question, or thought
about HackSpace
magazine?
Features Editor
Andrew Gregory
andrew.gregory@raspberrypi.com
Sub-Editors
David Higgs, Nicola King
DESIGN
Critical Media
criticalmedia.co.uk
Head of Design
Lee Allen
Designers
Sam Ribbits, James Legg,
Ty Logan
Photography
Brian O’Halloran
CONTRIBUTORS
Rosie Hattersley, Jo Hinchliffe,
Mayank Sharma, Marc de Vinck,
Andrew Lewis, Alex Bate
PUBLISHING
Publishing Director
Russell Barnes
russell@raspberrypi.com
Advertising
Charlie Milligan
charlotte.milligan@raspberrypi.com
DISTRIBUTION
Seymour Distribution Ltd
2 East Poultry Ave,
London EC1A 9PT
+44 (0)207 429 4000
ben.everard@raspberrypi.com
SUBSCRIPTIONS
Unit 6, The Enterprise Centre,
Kelvin Lane, Manor Royal,
Crawley, West Sussex, RH10 9PE
To subscribe
01293 312189
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hackspacemag
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This magazine is printed on
paper sourced from sustainable
forests. The printer operates an
environmental management system
which has been assessed as
conforming to ISO 14001.
HackSpace magazine is published
by Raspberry Pi (Trading) Ltd.,
Maurice Wilkes Building, St. John’s
Innovation Park, Cowley Road,
Cambridge, CB4 0DS The publisher,
editor, and contributors accept
no responsibility in respect of any
omissions or errors relating to goods,
products or services referred to or
advertised. Except where otherwise
noted, content in this magazine is
licensed under a Creative Commons
Attribution-NonCommercial-
ShareAlike 3.0 Unported (CC BY-NC-
SA 3.0). ISSN: 2515-5148.
ONLINE
hsmag.cc
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Contents
06
06
18
20
28
30
32
SPARK
Top Projects
Beautiful things, made by real people
37
38
52
58
68
LENS
Repair Revolution
How I Made:
A guitar pedal testing rig
Bringing order to the chaos of components
30
Fix things, feel good about yourself. It’s a kind of therapy
Objet 3d’art
Form meets function in hot plastic
Meet the Maker:
Steph Piper
Taking PCB design one step higher
Interview: Estefannie Explains It All
… well, not all. But a lot on Google, creativity, and art
Letters
A challenge for you electronics dumpster divers
Improviser’s Toolbox
Mason jars
Airtight, watertight, transparent containers for fun builds
Crowdfunding now
Piunora: Raspberry Pi meets Arduino
Tutorial
Lathe restoration
Space of the month
East Essex
A shared community workspace in the ancient East
Cover Feature
REPAIR
REVOLUTION
your money
THE
78
Make a rusty old piece of machinery
work like new
20
Save
your tools
Save
your planet
Save
38
4
CONTENTS
74
Best of Breed
VFD kits
06
Interview
Estefannie
110
102
73
74
78
84
88
94
There’s nothing like the
comforting glow of a VFD tube
58
Cunningham’s Law, taken to ridiculously
good extremes
FORGE
SoM
Raspberry Pi Pico
Build custom USB games controllers
68
101
102
108
110
112
FIELD TEST
Best of Breed
The very best VFD kits – the Nixies of the 1980s
Tutorial
Restoration
Return old machinery to working condition
Tutorial
Raspberry Pi
Build an arcade machine
Review
The Secret Life of Components
A video guide to making things
Tutorial
FreeCAD
Turn designs into 3D prints
Review
Hantek 2C72 Oscilloscope
A little scope with a lot of ambition
Tutorial
CNC
Cheap and cheerful CNC machining
Review
Kitronik Pico Discovery Kit
Play more with your Raspberry Pi Pico
Some of the tools and techniques shown in HackSpace magazine are dangerous unless used with skill, experience and appropriate personal protection equipment. While we attempt to guide the reader, ultimately you
are responsible for your own safety and understanding the limits of yourself and your equipment. HackSpace magazine is intended for an adult audience, and some projects may be dangerous for children. Raspberry
Pi (Trading) Ltd does not accept responsibility for any injuries, damage to equipment, or costs incurred from projects, tutorials or suggestions in HackSpace magazine. Laws and regulations covering many of the topics
in HackSpace magazine are different between countries, and are always subject to change. You are responsible for understanding the requirements in your jurisdiction and ensuring that you comply with them. Some
manufacturers place limits on the use of their hardware which some projects or suggestions in HackSpace magazine may go beyond. It is your responsibility to understand the manufacturer’s limits.
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