Latest news and features
Video of power tool racing in Belgium
In late April, the city of Gent, Belgium, hosted the annual Gent Maker Fair (https://www.makerfairegent.be/nieuws), an exhibition dedicated to all the crazy inventions of makers in Belgium.
On the fair’s opening night of 30 April, the Belgian Power Tool Drag Racing Championship entertained the visitors in a one-off event.
Popular in many countries around the world, this is a spectacular race of electric ‘vehicles’ powered by 220VAC and built with one or two power tools such as drills, chainsaws, and any other kind of electric-powered hand tool. The only rule is that it must be a tool that can be used by hand.
In the next issue of The Shed, issue 110, I will give more detail on the challenge. If it sounds like your kind of fun, there is the option to participate in the 2024 event.
Raising the bar
I have wanted to make an elevating bar stool for some time. They are a relatively simple design – four legs attached to a nut through which an acme thread runs, raising and lowering the seat.
However, attaching the legs to the nut is problematic. The nut is usually a fairly large piece of steel, in this case it’s 38mm diameter, and even with the hole and threads cut it still has a wall thickness of nearly 10mm. The legs on the other hand have a wall thickness of only 2mm. That size differential makes using MIG welding difficult. It can be done of course but it isn’t quite as straightforward as usual.
I felt it was ideally suited to TIG welding and as I hadn’t tried TIG before I thought this might be a good opportunity to get some experience.
The Shed June/July 2023 issue 109, on sale now
Our cover story this issue is on one man’s paradise. Gary Norton’s shed is crammed with vehicles in various stages of restoration. Classic Fords sit alongside a bevy of trucks and a unique build of a mini Kenworth. Jason Burgess visits a passionate Westie’s mega-sized shed.
“As shed sizes go, Gary Norton’s is a megastore. It needs to be, because, despite the square footage, space is at a premium, crammed as it is with “a bit of everything” and no end of enterprises in various states of progress.
There is a saying about the more you have, the more you are occupied. Luckily, Gary and wife Raewyn are as industrious as they come. They run their rural property as close to organic as possible. Even when they both worked full time away from their land, they still managed to raise 22 different breeds of chickens, rear calves, fatten sheep, and breed goats.”
Warning: boiling point!
I own an American classic car and it comes with the usual 1960s instrumentation—speedo, fuel gauge but only warning lights for oil, alternator, and water temperature. The alternator light comes on when you turn on the ignition, but the water temperature light is designed to come on only when the water temperature reaches 120-125 °C which is usually too late.
To fix that, I have devised this program powered by an Arduino micro-controller that will operate the temperature light when the engine powers up and light it up again to warn the driver as the temperature approaches 100 °C. It uses a readily available sender that will fit most vehicles.
Arduino software for wipers and temp gauge projects
Controller
I chose to use a shield (add-on board) to house all the parts for this project that allows the use of any standard Arduino and settled on a Seeeduino V3.0 and a Freetronics prototype shield as an inexpensive solution.
I used the controller and shield to for the previous variable wiper speed project for the car (“Wipe that classic windscreen,” Shed, Apr/May 2012). This second part uses the same controller and shield to do both tasks. The reader can either make one or both. The shield construction includes the extra parts (two resistors, one transistor, and one diode) and uses the “Start” button to do the “Normal” calibration.
Here are the two sketches (software) in these The Shed website’s two posts.
one combining water temperature light and variable wiper functions into one controller; and
one that just does the water temperature light.
Wipe, wipe that classic windscreen
I own an American classic car and there are a few mod cons that are missing. I’ve added central locking because crawling over seats was a pain, but I thought the Arduino could add a few features that aren’t available in the shops. This is the first of two parts which uses the same piece of Arduino hardware to do two different tasks—run variable-speed wipers and a temperature gauge. Each can be used on their own as it makes no difference to the software
Out of the box
The modern incarnation of the chest is the blanket box which sometimes doubles as a seat so it needs to be strong enough to support weight as well. This project is no more than a box with a lid and base. Dowels are the primary jointing method throughout and the top and base use a floating panel within a frame. There is also a small sliding drawer which is also dowelled together.
Hot water tune up
Research tells us that around a third of all energy used in the average New Zealand home goes in heating water. Another third goes in room heating.
In our home the rooms are mainly heated free from the sun so the water-heating fraction of the total energy use is a lot more than a third. Most water-heating systems aren’t well tuned. Improving their efficiency usually brings significant cost savings, a welcome relief in the current economic climate. Often it’s easy and costs little to do.
Fire dance
A yellow sign indicates an historic site ahead and soon an old corrugated shed with “Blacksmith 1889” emblazoned on its side comes into view. Not so unusual, but a driver might do a double-take when he spots the glow of the ancient forge and hears the ring of metal on metal as he passes. While the smithy in Teddington, on the road from Lyttelton to Port Levy on Banks Peninsula, is a relic from a bygone age, the man at work is a real live 21st-century blacksmith.
Top gears
Contrary to what the poets say, its gears, not love, that make the world go round. The magic of an exquisitely constructed timepiece with its myriad whirring cogs is an eternal delight. Horology has always fascinated me, and it has long been an ambition of mine to build the mother of all clocks, an orrery. Named for the 4th Earl of Orrery who commissioned George Graham to make the first modern device in 1704, they mark not just the passing of the hours, but the exact movements of the planets as they beat out Kepler’s laws.
The Shed April/May 2023 issue 108, on sale now
Our cover story this April/May 2023 issue 108 proves that it’s never too late to take up a new interest.
Whanganui sheddie Peter Loidl is a home renovator from way back and when he met some members of The Whanganui Woodturner’s Club at an exhibition, they encouraged him to join their club and have a go at woodturning. The results of Peter’s efforts on the lathe are really quite outstanding.
“In Peter Loidl’s living room, a 1:2 scaled-down Model T Ford made from various timbers does duty as a liquor cabinet. The bonnet and tank lift up to reveal a stash of spirit and wine bottles that have accumulated for years — they are mostly unopened, Peter tells us. He has wired up the headlights, back lights, and dashboard. He has also installed concealed colour-changing lighting where the bottles sit. There’s no drink-drive message intended; the car bar serves a functional purpose and is also an unusual decorative feature.”
Rescue those versatile stepper motors
Magnetism is wonderful stuff.
As a way of moving things it has no peer. It has no friction, excessive heat or other unwanted effects, and is easily harnessed in the shed in the guise of stepper motors. These versatile devices have an astonishing range of rotational speeds, from zero to tens of thousands of rpm.
Thanks to the precision of digital control, they can accelerate, decelerate, turn a specific number of times or even minute fractions of a single rotation – all repeatedly and reliably.
This offroader project is a beaut
Over the last couple of years, my son Kurt and I have built a few basic go-karts which not only gave him a taste of very basic engineering, but also allowed us to pile up valuable hours of quality time working together in the shed. This new project had a bit of a twist to it as, this time, my son was the chief designer and engineer and I was relegated to labourer. Like all the previous projects, he let me fund it.
The Shed March/April 2023 issue 107, on sale now
In New Zealand, knife-making is increasing in popularity year by year. If the recent Auckland Blade Show was anything to go by, this pastime is now a full-time career for a large number of sheddies and of enormous interest to the general public. The hundreds who came through the doors over the two-day event are evidence of knife-making’s huge growth over these past few years.
Who are these knife-makers; what separates and what inspires them? Where are they, and what knives and blades do they create?
We’ll soon know more because in this issue of The Shed we profile 36 of NZ’s finest. Read our Who’s Who and Where’s Where in this issue in an extensive rundown of our 36 best Kiwi knife-makers.
Gold fish
The shubunkin goldfish is sometimes referred to as “poor man’s koi” and in China the koi carp is often used to represent yin yang. I have drawn the body of the shubunkin goldfish fish to look like one half of the yin yang symbol (see panel). I then added the fins to suggest and give movement to the piece.
Firstly I took a photocopy of my artwork and stuck it to a sheet of 0.5 mm copper plate with double-sided tape. This is to create templates of the body and fins
Classic Manx Norton flourishes
The legendary Manx Norton was
the first single-cylinder motorcycle
to lap the famous Isle of Man TT
circuit at an average speed of 100 miles per hour (160 km/hr).
Made from 1946 until 1962, the bikes became a favourite of privateer racers and in more modern
times, a popular choice for classic
motorcycle racing.
Today, half a world away from the original Birmingham factory, a small Kiwi company is restoring and supplying parts to Manx Norton owners around the globe.
The Shed January/February 2023 issue 106, on sale now
For this summer issue of the magazine, we thought it would be an idea to keep our readers busy and enjoying themselves in their sheds on rainy summer days.
Our main article this issue “Six Summer Sheddie Projects” is about combining the fun of the summer daze and the annual wind-down with family and friends with the spirit of DIY that drove many of us to a self-sufficiency based around our garage workshops and sheds, and more recently extended into MenzSheds.
Our Kiwi No. 8 wire mentality gave us pioneers such as Sir William Hamilton of HamiltonJet and Peter Witehira of Power Beat with his never-go-flat battery.
Now it’s your turn. We’ve come up with six projects of varying levels of skill, and invite you to have a go at them, or — better yet — put your ‘I can do that’ hat on and improve on them.
A new global distribution agreement between element14 and Analog Devices
A new global distribution agreement with Analog Devices, an international leader in the semiconductor market, has given element14 the ability to offer its customers an increased range of high-quality products for mixed signal and power management.
The new partnership with element14 will offer fast delivery of the Analog Devices range, including the latest innovative products. The broad portfolio of high-performance analogue, mixed-signal, and digital signal processing integrated circuits is suitable for many types of electronic equipment, helping design engineers to create new solutions for a variety of industries, including automotive, communications, consumer, data centres, and industrial automation.
Positive trends for gender balance in the electronics and engineering industries
A new survey on global trends affecting women in the engineering/electronics industry has revealed that, although they still face major challenges, there are positive trends that highlight a continued movement towards equal treatment, regardless of gender.
This is the second survey element14 has conducted that is aimed at shedding light on women’s experiences, career paths, wider challenges, and opportunities in the engineering/electronics industry.
The results show that inequality needs to be addressed to achieve the equal treatment of all, and that women around the world remain underrepresented in the industry and continue to experience various forms of sexism and discrimination.
New questions covering discrimination, sexism, and equality were added to the 2022 survey, as these critical issues were noted as key areas in the original 2021 survey analysis.
A Primer In Hydraulics
Now that you have a basic overview of some of the components that go into making up a hydraulic system, let’s take a look at a practical application. The wood splitter is a good example.
First you need to determine what you are trying to achieve. In the case of our log splitter :
* How much force is required to split the timber?
* How fast do you want to complete a full cycle i.e. ram full out and full return?
* How much horsepower is available to power the pump?
We will illustrate an example using a single-stage pump with a safety margin of 200 bar (pressure
in bar: 1 metric bar = 14.5 lb/in²).
It must be emphasised that an oil pump does not pump pressure, but flow. Pressure is created by the load on the actuator
Videos of metal shaping and motorbike guru, Steve Roberts
In the November/December issue 105 of The Shed, our cover story is on a Kiwi legend of metal shaping and motorbikes, Steve Roberts.
If you enjoyed that article here is a link to a website that has even more of Steve’s story as well as videos of the cars and bikes he has constructed and inside info from chats with Steve.
How to repair a thread
Damaged and pulled threads can be an annoying inconvenience, especially a stripped spark plug thread. They can also be expensive if the equipment you are working on is vital or difficult to replace. But there are now systems with which you can repair even completely destroyed threads quickly and at a reasonable cost, so saving time and money.
Existing undamaged threads can also be significantly strengthened using these types of repair systems.
Which air compressor?
Selecting the correct air compressor for a particular job should be a relatively painless exercise. The right choice will provide you with a useful machine that can last for many years, provided you maintain it well.
But far too often, choosing a compressor can come down to a random weighing-up of price, cosmetic appearance, or misinformation about the compressor’s specification. In fact, the most important thing to consider is the air consumption of any tool to be used with the compressor.
The saying, “You wouldn’t buy a Mini to tow a boat,” holds true. If the compressor is too small for the job, either the tool won’t work or the tool will work below an acceptable level
Video of a restored 1910 Atlas power hammer
One of our favourite sheddies here at the magazine is Rudi Buchanan Strewe whose engineering shed we featured in issue 102. When we visited Rudi, he was restoring a 1910 Atlas power hammer. Here it is, restored, and up and running as good as new.
Milling Part 3, cutting, clogging, and cleaning
Once your component is securely clamped (see “Showing restraint” Part 2, www.the-shed.nz), ensure the cutting tool is held correctly in its chuck or collet holder, keeping tool overhang or stick-out to a minimum. Being rigid and stable applies as much to tooling as it does to the workpiece. Drill chucks are NOT designed to take side loads induced by milling and are exclusively for drills. Milling cutters should be held in a collet chuck or other suitable holder.
The Shed November/December 2022 issue 105 on sale now
Legendary panel maker
The unassuming Steve Roberts has been called everything from artist and magician to guru of alloy; he himself is more comfortable with the handle ‘tin basher’
Our cover story this issue is on a legend of metal shaping and motorbikes, Steve Roberts. Steve is one of this country’s most respected and admired craftsmen in these fields, and we made the journey to Whanganui to catch up with him.
His output has been prodigious; his innovations groundbreaking; his production values and eye for detail next level. Incredibly, most of his work has been conjured, beaten, and bent with ‘basic tools’ — an indispensable 1920s lathe, a homebuilt press, and an ancient wheeling machine — from a modest shed he once shared with his family’s horses
No more bad vibrations
Enjoy smooth, flawless performance with the wide range of anti-vibration mounts from Hi-Q Components. Manufactured from rubber and zinc-plated steel, the quality range includes male and female threaded mounts in a variety of metric thread sizes, from M4 to M16. The female and male anti-vibration mount sizes…
Milling – showing restraint
In Part One of this series on the milling machine we put the milling machine in the workshop and had it levelled. Before you use the machine, it is important to check the alignment of the spindle. Then comes understanding the importance of preparing the workpiece. Work to be milled or drilled on the milling machine has to be set up so that it does not move during the job. This is one of the most important things you can do if you don’t want an important component or workpiece to end up as scrap because it moved.
Time for a milling machine?
In a typical home engineering workshop progression, you buy a bench vise, some hand tools, and possibly a bench grinder. After you buy a small pillar drill then comes a big leap — buying a centre lathe.
Along the way you acquire more small tooling, drills, turning tools, etc. You make many useful items and produce a fair bit of scrap.
But then you find the lovely pieces you are turning out on your lathe require other features, especially holes more accurately positioned than you can mark out and drill on your pillar drill. As good as you have become with a file, that flat section needed on the shaft really needs to be machined. And how are you going to make a slot for that keyway?
Create a coffee table
Making an item of furniture does not have to be the daunting task it can seem. If you look closely at commercial pieces, you’ll notice that they share common concepts, and they are simple concepts at that. I’m not suggesting you suddenly choose to give away purchasing furniture and make all your own but making one or two items can become real statement pieces. Perhaps a hall table, or in this case, a small coffee table.
For this project, instead of choosing a basic option of joining a few narrow boards side-by-side to create a solid top, I chose to try a technique I haven’t used before – using wedges of timber to create a radial effect. For your top, you certainly do not have to go this far, and you can choose to have a solid top (these can even be purchased pre-made), or even a solid slab (with or without a natural edge)
Build a portable barbeque
At home, I have a big barbecue in the backyard and a little barbecue upstairs on the balcony that I use when there are just two of us. This hibachi or portable barbecue would be ideal for just two although the grill rack is big enough for four or five steaks or chops and sausages. It can be made with scrap mild steel and a piece of cut pipe. You will find scrap bins at your local engineering works. Most pieces of metal under a metre seem to go in there. You could ask and many companies would be happy to help out, perhaps for a couple of beers.
IoT key driver to growth and leadership opportunities in key industries
A new global survey on the development of the Internet of Things (IoT) across a wide range of industries has revealed some interesting new trends, including a surge in willingness to use AI in some form, increasing concern about connectivity options, and a willingness to establish partnerships to accelerate the delivery of new IoT solutions.
The Global IoT Survey 2022 was conducted by element14,an Avnet company that specialises in the global distribution of electronic components, products, and solutions — and analysed 2263 qualified responses received between January and March 2022 with the aim of gaining a better understanding of technologies, challenges, and opportunities faced by designers and system integrators of IoT solutions.
Welding with LPG
Long before MIG welders or fancy plasmas came onto the scene, the art of welding, cutting, and brazing was to work with gas. The hire or exchange cylinders used by sheddies invariably were oxy/acetylene as this was one of the most common processes for welding, cutting, or brazing.
But there is an alternative–liquefied petroleum gas (LPG) and oxygen. This combination can be used for heating, bending, brazing, soldering, silver soldering, and flame gouging to name just a few applications.
The Shed September/October 2022 issue 104 on sale now
The September/October 2022 issue of The Shed, No. 104, has something in it for every sheddie.
Our cover story this issue is on a couple of blokes who are collectors and restorers of stationary engines of all different types and sizes. Tom Gregory and Gary Norton have got the bug bad and both find it hard to go past a stationary engine of any era and any fuel type. Spending time with Tom and Gary as they describe their addiction to these soldiers of past years will surely convert many readers to the joys of stationary engine ownership.
“There is something endearing, almost comical, about the chugging, spinning, and belching machinations of vintage stationary engines.
Spinning wheel
While we are rather spoilt these days for ready sources of energy, it was once a matter of harvesting what was available in the local environment. More often than not, what was available was a stream or river, and so the workshop was built on the riverbank and the harvesting was achieved by a water wheel.
I’ve always been rather taken by the concept of water wheels (and other mechanical devices that harvest energy from nature), and have been intending to make a small one of my own, even if it was just to be a garden ornamental feature.
As tough as steel
The chemistry of steel determines why and how it should be tempered.
The potential hardness of a steel is determined by its carbon content. Adding small amounts of other elements to the mix can produce enormous improvements in strength, toughness, and
resistance to rust and the response of the steel to heat treatment.
Steels referred to as alloy steels have additional elements such as chromium, nickel, vanadium,
cobalt, manganese, molybdenum, silicon, and tungsten included.
Build a grandfather clock case
I had always wanted to build a grandfather clock case and was given the incentive when a client gave me the a modern clock mechanism and a photocopy of a reproduction of an English Tall Case clock to follow. I had to increase the plan dimensions to fit the mechanism, ash wood was chosen and I ended up with 23 metres of approximately 200 x 25mm rough-sawn at an average length of 2.4 metres costing just under $300.
This is not the ideal style of clock case for anything other than an antique clock mechanism. In modern clock mechanisms, the pendulum swing (which should always be tested) needs a straight-waisted trunk style of clock. However, this project has been done to the requirements.
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Unpublished photos from our visit to the home shed of Stan the Builder
With the Pacific Ocean rolling to shore just across the road from his shed at Wainui Beach, avid surfer and passionate sheddie, Stan Scott, is never too far from his two favourite places.
As far as careers in the building trades go Stan’s has been one out of the box, driven largely by his insatiable curiosity and his never-say-never attitude. Building he says, has taken him places he never dreamed of going. Stan is a familiar face to many Kiwi’s. He has built and presented on a raft of TV renovation shows; is the current brand ambassador for Mitre10 and has even managed a few how-to spreads for us at The Shed.
When he’s not busy planning, building, filming and fronting Mitre10’s web based DIY series’ or giving instore presentations across the country, Stan is home juggling his own building jobs with personal projects and family life.