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electronics

Getting up to speed

The ever rapid and constant development of electronics has had many positive effects for the sheddie, and one such example is the Variable Frequency Drive (VFD), which allows the speed of 3-phase motors to be electronically controlled with the bonus of adjustable speeds. Historically, continuously variable speed motor drives involved mechanical systems such as the Reeves drive, which is similar to a motor scooter CVT transmission where belt-drive pulleys can be varied in size “on the fly” and hence vary the drive ratio.
These and other transmissions were universally expensive, difficult to retrofit and inefficient. The increased use and falling prices have brought new and used VFD drives within the reach of the home user and have opened opportunities with industrial machinery that previously did not exist.

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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.

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element14 – your global technology leader

Future proof your business and make sure you are ready and fully equipped for all the challenges of tomorrow with global technology leader element14.
Specialising in high service distribution of technology products and solutions for electronic system design, production, maintenance, and repair, element14 draws on years of experience to support its broad customer base. Offering a tailor-made pathway to a range of services and products for everyone from hobbyists to engineers, maintenance engineers, and buyers, it has a track record of working with both leading brands and start-ups to develop new products.

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Video of Enrico on the road

This is a short video of the campervan hi-tech modifications series written by Enrico Miglino as featured in the magazine. This film covers the articles in Issues 98-100

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Build your own robot arm

This article is all about building your own Meccano version of a robot that can be programmed to work just like the big fellas – and you can learn just how challenging real-world robots are to control. The robot arm can be programmed to move small objects from one place to another. It can reach, grab, lift and swivel.

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3D Printing

Here we’re going to use 3D printing to do a modern twist on “lost wax” casting.
It’s a trick that’s more than 5000 years old: make something in wax, bury it in clay or plaster leaving a hole in the shell. Bake the heck out of it to remove the wax and then pour molten metal down the hole. If everything stays together, you get a metal replica of your wax object.

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Make your own Kontiki for fishing

There are several New Zealand-designed and created fishing kontikis on the market but when I thought about having one, I wasn’t going to buy it.
I had the ability, so I did what any good Kiwi would do, I decided I would make one myself.

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Let the sun run your pump

I suppose all waterfalls are solar- powered – the sunshine evaporates the water which turns into clouds, becoming rain which pours down into waterfalls. So the publisher’s challenge to make a small solar- powered pump for Greg’s sculpture seemed not too difficult. 

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Arduino 101 Part 3

In this article, we show how an arduino microprocessor is complex enough to exercise variable control, not just the expected computer approach which is that something is working, or it is not. Digital devices have only two states: on or off. An analogue device on the other hand can have a near infinite range of states. 

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Arduino 101: Part 2

So far we have begun to get acquainted with the Arduino and IDE, the “sketches” or programs that make it work, and we have got it working blinking an LED on and off. In this article we will delve a little deeper preparatory to diving right in with a fully edged project with some real- world applications in the next issue.

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Arduino 101: Getting Started

This is the first in a series of articles to introduce the versatile and extraordinary Arduino system to people with no prior knowledge of programming or electronics. We will take you step-by-step through how to set up, program and use the Arduino and provide a series of projects that will help you gain the knowledge you need to free your imagination and work with this revolutionary device.

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