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The Shed

The Shed No 089 March-April 2020

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.

Pays:
New Zealand
Langue:
English
Éditeur:
Parkside Media
Fréquence:
Bimonthly
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6 Numéros

dans ce numéro

2 min.
the father of invention

This issue of The Shed has its usual collection of extraordinary sheddies, showing readers how to create useful stuff or sharing how they have full lives just doing what they enjoy. It must be apparent to all that I am very much in awe of all of the featured sheddies in our magazine because I have not a modicum of the skills of the folks we feature in these pages. I am constantly impressed by the discipline and talent readers possess to get stunning results using their skills and know-how. Another factor to consider with all the projects we feature is how they keep one’s brain sharp. Working with your hands and making the grey matter work harder to figure out and solve issues is the perfect way to stay mentally happy…

8 min.
a right royal roasting

The cost of running a Menzshed far outweighs the income from annual membership fees. Even with minimal overhead and administrative costs, the annual fee times the number of members is clearly not enough, particularly given the capital outlay, ongoing maintenance, and the expense of components and parts that many tools require. Even indirect costs such as health and safety requirements, public liability insurances, and auditors if your organization is a trust, means that money has to be found from somewhere. In trying to address this issue, the Halswell Menzshed decided to raise funds via a fundraiser, or to put that another way, instead of seeking funds for a particular requirement or cost, they would use them to build something that, in itself, would help to raise further funds. And when it…

1 min.
why a stepper motor and how - gavin melville

Existing spit-roast gearboxes are fragile because of the small motor and large reduction ratio, and have little torque. This is either because high reduction ratio gearboxes lose power in each gear (rule of thumb: expect to lose 15 per cent power per gear pair, and because four to six mating pairs involved) or because slowing down a 1440rpm motor electrically lacks speed control and torque at low rpm. A stepper motor is much better at low rpm, and conversely lacks torque at high rpm, so would have lost half its power at 1200rpm, with 3000rpm would being a sensible upper limit. With 200 steps per revolution, motion appears smooth and no steps are visible. Stepper motors are simple internally and have no rapidly moving parts. Just Google ‘stepper motor construction’ to…

2 min.
menzshed national conference 2020

A warm southern welcome awaits sheddies at the 2020 Menzshed National Conference to be held in Dunedin over 17–19 April. Registration is now open, and the theme is Communities and Wellbeing Bring Sheddies Together, with the event set to feature speakers and panels on a wide range of topics including shed management and logistics, men’s health and wellbeing, shed projects and community relationships, and new and innovative technologies. Menzshed New Zealand is a registered charity that exists primarily for the mutual benefit, success, and support of and access to member sheds. The movement has gained momentum over the past 10 years, with more than 108 sheds incorporated across New Zealand and a further 30 in development. The movement is a semi-finalist in the 2020 New Zealand Community of the Year Awards. “It’s great…

4 min.
waikato leads the world in asparagus-picking tech

Dr Shen Hin Lim is well on the way to developing the first effective asparagus harvesting machine. He can’t claim to have held a lifelong fascination with the tasty vegetable spears but when you turn up at the University of Waikato’s robotics engineering team looking for a project to get stuck into, what could be better than a problem that has defeated engineers for generations. It comes as something of a surprise to learn that even in today’s mechanised high-wage societies that the current crop of asparagus spear collectors just don’t work. Almost all asparagus is harvested around the world by people with sharp blades bending down to cut them off. That’s back-breaking, unpopular work and the labour costs in New Zealand are considerable. It’s a problem growers here and around…

2 min.
exposed wiring

I’ve been reading your great magazine for over 10 years, and I hate to be ‘that guy’ but I was a little concerned about one of the articles in this month’s issue [The Shed Issue No. 88]. In the music box, a mains-powered light was added, operated by a relay from the controller. There is clearly exposed mains wiring inside the unit, and this really should be contained in a safe case. I would suggest that a cardboard box tied shut with a piece of string is not a suitable container for mains wiring. Although you would like to think most people wouldn’t open the box and poke around, the fact they could easily do so is potentially dangerous. Kevin Steele Thank you for your comment Kevin, you are absolutely right. These projects are prototypes…