hackspace_issue41.pdf

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hsmag.cc
April
2021
Issue
#41
PICO
Graphics
Add pixels to your
Raspberry Pi
microcontroller
BUDGET
PRINTING
Get p
this g rints
unde ood for
r
£
10
0
3D
Apr. 2021
Issue #41
£6
Geeky
Faye
What to
look for!
What to
buy!
What to
avoid!
Woodcut
Use a laser cutter
for inky designs
Fine art meets
digital creativity
Printing
GLASS-BLOWING
ZIPS
HIFIVE
LOGIC
WELCOME
EDITORIAL
Editor
Ben Everard
ben.everard@raspberrypi.com
Welcome to
HackSpace magazine
What is a budget 3D printer? It’s no secret that you can get a
good 3D printer for £300 these days. If you shop smart, you
can pick up a good printer for £200, but what if you go lower?
Our 3D printer test lab has been a hive of activity this month
as we aimed to answer the question of ‘how good a printer
can you get for under £100’?
We’ve tried printers in this price bracket before and not
had good results, but time and technology move on and there
are some more options now. The results certainly surprised
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
Lucy Rogers, Drew Fustini,
Jo Hinchliffe, Mayank Sharma,
Marc de Vinck, Luke Wren,
Rob Miles, Andrew Lewis,
Tony Goodhew, Alex Bate
If you shop smart, you can pick up
a good printer for £200,
but what
if you go lower?
us. Take a look at page 38 for the
full rundown.
Of course, it’s not all 3D printing.
PUBLISHING
Russell Barnes
On page 74 you’ll find a guide to
expanding the graphical capabilities
of Raspberry Pi Pico and, on page 110, we take a look at adding
buttons and lights to this microcontroller. If you’re in a less
digital frame of mind, you can read all about making things
with wood and ink on page 80. Happy making!
BEN EVERARD
Editor
ben.everard@raspberrypi.com
Publishing Director
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
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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
3
Contents
06
06
18
20
26
28
30
32
102
37
38
52
58
68
SPARK
Top Projects
March is the month of making – and how!
LENS
Budget 3D printing
Just how low (in price) can you go?
Objet 3d’art
Go back to the future with a 3D-printed PCB
How I Made:
Pico video
Send video signals direct from a Raspberry Pi Pico
Meet the Maker:
Matthew Little
Meet the captain of the good ship Curious Electric
Interview: Geeky Faye Art
How to bring a classical sensibility to digital art
Columns
Car hacking: it’s nothing like
Fast & Furious 7
Improviser’s Toolbox
Zips
Flexible connectors – ideal making fodder!
Letters
The 1980s nostalgia corner revisits the Roland JUNO
Tutorial
Laser-cut printing
Crowdfunding now
A new model for 3D printing
Space!
The maker kit powering NASA’s latest Mars mission
Cover Feature
38
4
3D
PRINTING
The best
3d printers
£
100 can bu
y
BUDGET
ULTRA-
80
Turn blocks of plywood into your
own artisan printing press
94
CONTENTS
110
Interview
18
Direct from Shenzhen
Logic analyser
Geeky Faye Art
20
108
73
74
78
80
84
88
94
Monitor what’s going in
and out of your circuits
58
Design aesthetic, the importance
of accessibility, and 3D printing
06
52
101
102
108
110
112
FORGE
SoM
Pico graphics
SoM
Mini supercomputer
How many cores do you want?
Get more performance out of the Pico Explorer
FIELD TEST
Best of Breed
Gadgets to monitor the growing green stuff
Tutorial
Laser-cut printing
Carve inky wood-blocks with computerised lasers
Tutorial
Raspberry Pi
Preserve your peace with a Do Not Disturb sign
Direct from Shenzhen
Debug hardware with a cheap logic analyser
Tutorial
FreeCAD
Create technical drawings with free software
Review
Pico RGB Keyboard Base
Add keys to your Pico without using up all the GPIOs
Tutorial
IoT
Connect little intelligent boxes over the internet
Review
HiFive Inventor Coding Kit
Learn to program hardware with help from Doctor Who
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.
5

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