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The Shed

The Shed No 085 July-August 2019

The Shed is Eclectic, informed and always fascinating, there is something to interest everyone in The Shed. Aimed at those with a few tools and perhaps a few clues, this is the magazine for real sheddies. Packed with ideas, projects, advice and peeks into other people’s sheds.

國家/地區:
New Zealand
語言:
English
出版商:
Parkside Media
頻率:
Bimonthly
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6 期號

本期

3 最少
happy new year

New Year’s Eve is great don’t you think? The past is the past and how good is the next year gonna be? So much better, right? Part of all the optimism many of us feel on 31 December is due to planning to make some changes and setting some goals. I rarely make New Year’s resolutions but last New Year’s Eve I did for the first time in ages. My resolution revolved around what I could do towards the cause of combating climate change. How did I do? Read on. Climate change affects us all and as sheddies are very competent at solving issues and sorting problems, we often run articles in the magazine giving some insight into how we can look after ourselves better. This edition of The Shed has three…

17 最少
turn up the heat

When my wife and I were in Japan in 2006 we visited a traditional Japanese knife maker on the island of Kyushu. He is one of a handful of traditional knife makers left in Japan, with the family business stretching back for 250 years. The interesting thing was that he heated his forge using used engine oil. The burner was a very simple oil-atomizing arrangement using compressed air blown over a nozzle. The oil was directed into a brick furnace in which he heated his knife blanks. You can see a video of his furnace on The Shed website. The furnace ran with no apparent smoke or smell and achieved temperatures in excess of 1100°C. It inspired me to try to make my own. There is always something fascinating about viewing…

2 最少
used-engine-oil burner

After seeing the Japanese forge running on used engine oil I was very keen to try my version of it on this little forge. The principle was very simple. If you spray oil into a hot forge it will burn very well without any smoke or smell. I found that a litre of diesel in four litres of used engine oil made it run much better than just straight engine oil (Image A). The oil spray is made using two 0.9 mm MIG-welding tips (B). The fixed bottom one is the oil supply, which goes into a four-litre container of used engine oil. The top tip blows compressed air across the oil tip creating a vacuum that sucks the oil up from the container. It is adjusted by the screw so…

1 最少
knife makers forum

The Gameco building in Villa Street, Masterton was the venue for a forum of knife makers and knife enthusiasts from all over New Zealand on Easter Saturday. The event, which is intended to be an annual gathering, was held last year in Taupo. Gameco is the largest outlet for specialist tools and materials for knife making and blacksmithing in New Zealand and Australia. Among those presenting and demonstrating their techniques was Brent Sandow, one of New Zealand’s premier knife makers, and Shea Stackhouse, who demonstrated his technique for making Damascus steel. Callum Davidson, a young local blacksmith, demonstrated his craft outside where a small forge and anvil had been set up. Liam Croft, from Tinui, showed examples of his intricate swords, complete with rune-engraved handles and detailed scabbards, and Nick Rowney exhibited…

2 最少
the future on display

Southmach, a two-day technology trade show, was this year held on 22–23 May at Christchurch’s Horncastle Arena. Large manufacturing companies are the logical customers, but a lot of the gear and services would be suitable for the home workshop. Tiny, efficient stick welders for around $1K were on a couple of stands, and bottled-gas suppliers were prominent. It was interesting to discover how things are changing (and improving) in these two areas. A number of exhibitors displayed stuff made by 3D printers. It is possible to produce extremely complex items in small numbers by 3D printing. Plastic, titanium, and silver items were shown and it is obvious that the price of these processes is becoming much more affordable. What this means for traditional manufacturing is anybody’s guess, but printed items are sure…

1 最少
bot power

What sort of people go to the trouble of building complex and dangerous robots and then smash them to pieces? The crazy builders from Combat Robotics NZ, that’s who. Combat Robotics organizes events where small but destructive robots fight to the death in arenas clad with enough polycarbonate and steel to actually be bulletproof. These robots are often 3D printed and use motors and electronics adapted from the multicopter and radio-controlled (RC) community. People of all ages and abilities produce different types of machines — some simple wedges that get under another bot and force it into the pits, others with nasty spinning blades or flipper arms intended to control the opponent or, preferably, destroy it. At their nationals in Auckland on 25 May, more than 30 competitors fought in two size…