The Shed - Projects

Raising the bar

31 May 2023

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.

Warning: boiling point!

25 May 2023

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

25 May 2023

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

19 May 2023

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

3 May 2023

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.

Top gears

1 April 2023

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.

Rescue those versatile stepper motors

10 March 2023

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

23 February 2023

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.

Gold fish

28 January 2023

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

Create a coffee table

1 September 2022

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)

Spinning wheel

20 July 2022

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.

Build a grandfather clock case

29 June 2022

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.

How to steam bend wood

5 May 2022

This project to make a stool was developed as a way of introducing students to a number of basic
wood-bending and shaping techniques, whilst also giving experience in several useful applications of the router.
The stool consists of two legs in the form of continuous steam-bent hoops or arches, which are housed into matching radiused slots at either end of a curved seat. The legs are stiffened by the addition of smaller arches that fit between them and the centre underside of the seat. For the purposes of this article, I am going to focus on the steam-bending aspect involving the legs as that is the technique that woodworkers seem the most reluctant to try.

Making your own campervan

7 April 2022

Converting an ordinary van into a campervan is a project I have been talking about for some time.
As a retired technical teacher, I felt I had the necessary skills, and when a 2005 Kia Pregio van in excellent condition became available I decided to take the plunge.
The van is a 2.7 litre diesel, manual, with 26,000 km on the clock and a cargo space of 2.8 metres x 1.65 metres. My plan was to fit the space with two beds, one on each side. They can be expanded to a full-width bed using the foam backs of the seats supported on shortboards between the sides of the seats.

Create this outdoor table using a chainsaw

23 March 2022

This design for a macrocarpa slab table is a general design. There are variations and you could do the legs of the table differently, but the general rule is to keep it simple. My old man used macrocarpa for fence posts years ago and they’re still in good condition.
When I was cross-cutting, it didn’t take much to find out I liked macrocarpa. It has a lovely grain and I like working with softwood. It’s a softwood until it’s been sitting around for a year – that hardens it up.

Projects