When we met Des Thomson and his expanding motorhome pod in Issue 76 of The Shed, we were very impressed with his workshop dust extractor. Happily for us all, Des has found the time to share with us how he builds these machines using and an old vacuum and the minimum of parts. Follow his step by step build of a workshop dust extractor in this Issue 80 of The Shed.
Electronic amplifiers are widely used in almost all electronic equipment— they can either be a separate piece of equipment or an electrical circuit within another device. The ability to amplify is fundamental to modern electronics, where a small electrical signal is amplified into a larger output signal with increased power output or signal strength.
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.
In The Shed Issue 79, July/August 2018, we head to Wellington to document Shea Stackhouse making a small knife from Damascus steel, fondly known as a Puukka (that’s Finnish for small knife). While we are there we hang around to meet some knife fans who receive knife making advice from Shea at one of his regular knifemaking classes.
In the last issue we presented a project to create a temperature regulator. In this issue we will show you how to include an LCD that displays the highest and lowest temperatures, along with the current temperature. In the sketch I have also included a section that scrolls text, as a demonstration.
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.
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.