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Written by Greg Holster
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It’s easy to move on from oxy/acetylene welding in the shed to oxy/LPG. Many sheddies weld and cut with the oxy/acetylene, a gas combination that has been widely used in home workshops. 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. |
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Jetpack - the ins and outs |
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Written by Dave McKinnon
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It is now possible to strap yourself into a small jet propulsion outfit and literally lift off and this holy grail of powered, personal flight really is a Kiwi invention. Christchurch biochemist Glenn Martin claims flying in his DNA. He says US aviation pioneer Glenn L Martin was a distant relative. As a young boy the Kiwi Glenn Martin dreamed, as he waited to cross a busy street, of being able to simply fly over the top of the traffic. The Martin Jetpack has deliberately not yet flown higher than ten feet (3.04 metres) because Martin has imposed a stringent proving regime. When all the testing is completed, Martin projects an altitude capability of 8000 feet (2460 metres), the ceiling imposed by the usual suspects: lower air oxygen content and lower air density reducing the mass available to ram through the fans. The pilot would not need an oxygen mask. |
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Written by Robin Overall
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Since building the pizza oven (see “Pizza oven pleasure renewed,” Feb / Mar 2008, The Shed) I have become more and more interested in different ways of cooking food. My pizza oven now produces a variety of breads and succulent roasts. As the oven sears the food with heat to seal in the flavours, it produces the succulence. Conventional cooking dries out food because it is a relatively slow process. Those of you who built the pizza oven will know that the cooking process can be measured in seconds rather than hours My quest for different types of bread led me ultimately to Indian flatbreads. I have produced naan bread in the pizza oven but I wanted to try the genuine method so I researched tandoori style food. |
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Build a Small Steam Engine, Part 1 |
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Written by Robin Overall
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A small steam engine has long been the ultimate aim of every amateur engineer. They are an extremely attractive toy and fairly easy to make in the average workshop. I have divided the project into two areas. The boiler construction is covered first and then the engine. The reasoning behind this is that the boiler can be used with any similarly sized engine and vice versa, so once you are hooked who knows how many beautiful little models will be gracing the shelves of your shed. |
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The construction of a canoe |
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Written by John Rawson
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For centuries, man has been stitching materials together so he can float on water, creating everything from coracles to ocean-crossing curraghs and catamarans. Some consider stitch-and-tape plywood projects without finesse but fine boats have been built using this method. This kitset project provides a starting point for an endeavour which may otherwise daunt a novice. With a kitset, it is unnecessary for the boatbuilder to loft the planks (draw them full-size), to cut them from the sheet of ply and plane and smooth the edges to obtain fair curves and therefore a fair boat. The difficult tasks have been performed and only basic woodworking skills are required. |
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Written by Rebecca Hayter
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When the meat lovers among us think about carving up Daisy the cow, we’re picturing the Sunday roast but Lilach Paul sees bare white bones: blank canvases to be brought to their full potential beneath her Dremel drill. To date, she has created more than 700 one-off pieces of jewellery which began life as bare bone. |
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