Wobblycogs Workshop

Author: Doozer

  • LED Array Lamp Part 4

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    I’m going to start this article with photographs of the built lamp as there’s no way I’m taking it apart again for continuity. I think it’s also useful to see that it’s almost identical to what I showed at the end of the previous part. These are the interesting bits, towards the bottom left there’s…

  • LED Array Lamp Part 3

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    In part 2 I got just a handful of LED’s running directly from the Raspberry Pi. That’s a little bit risky so in this article I’ll look at some other options for powering the LED’s. Firstly… It bugged me that the pixels would keep displaying the last state when I shut the application down (killed…

  • LED Array Lamp Part 2

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    As I mentioned at the end of the last part of this series I got the lamp to the point where it was built and I’d started testing but then gave up on the project. At this point I can’t even remember how to light one of the LED’s from the Pi so it’s time…

  • Yeti – Electrical Terms

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    Doozer
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    While designing the electictrical system for Yeti I came across a whole host of thing that I didn’t understand from pull-up resitor to PNP. Guessing I probably wasn’t alone in this I thought I’d document at least some of them here. Keep in mind that I’m not an electrical engineer so this may not be…

  • Router Table Electrics and Wiring a Contactor

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    Now that the frame of the router table is built it’s time to start plumbing in the electrics. As with the rest of this build I’ve gone a little bit over the top and installed an industrial sized contactor. Over all I’m mostly happy with the finished product but read on for details.

  • Build a Game Steering Wheel Using an Arduino – Part 3

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    In part 2 of this series I built the circuit that I’ll be using for my controller based around an Arduino Pro Micro. In this part I’ll configure the driving simulation game Dirt 3 so that it works with the controller.

  • Build a Game Steering Wheel Using an Arduino – Part 2

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    In part 1 of this series on building a gaming steering wheel from an Arduino I installed and tested the library that I’ll be using. In this part I build and test the circuit that the controller will use. I’m quite new to electronics and I thought this would be a challenge but it turned…

  • Build a Game Steering Wheel Using an Arduino – Part 1

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    Since I was a boy (which was a depressingly long time ago now) I’ve wanted to play a racing game using a steering wheel. I’ve played using a keyboard, mouse, joystick and game controller and they range from terrible to awful as controllers for driving. None have the control and accuracy that a steering wheel…

  • Building Sash Windows – Part 1

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    Materials Paint On my first batch of windows I used Johnstone’s Flexible Primer Undercoat and Johnstone’s Flexible Gloss. It’s not cheap but it came highly recommended by people who have used it and I would be happy agree with them and say this is good stuff. The data sheet claims an 8 year life time…

  • Workshop Lighting – Cable

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    Understanding Cable Markings Cable from a laptop power supply supplying 12Vdc at 2A over 1 meter. Text on the cable: E157914 PRIMAX RU AWM 1185 80 degC 300V VW-1 CSA LL110529 AWM I A/B 80 degC 300V 18AWG FT1 LM The text on the cable tells us a lot about the cable but most of…

  • Workshop Lighting – Power

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    Powering your LED lights is as simple as attaching a 12V power source and basking in their cold white glow. Powering your LED lights and getting the most out of them is a little harder though and will require some calculations and experimentation.

  • Woodcarving Tool Brands

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    Brands The majors brands in alphabetical order are Which brand you go for is a matter of personal preference and it’s a good idea to hold the chisel in your hand before purchase. The Kirchen tools all have an octagonal handles which you’ll either love or hate. The Pfeil tools often get praised on-line for…

  • LED Lamp Projector Upgrade – Optoma HD70

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    Spurred on by my success with the cBright XG2 lamp bypass surgery I decided to have a go at doing the same for the Optoma HD70 I own. This projector is about 5 years younger than the XG2 and is native 720p so from my point of view this is a much more appealing conversion…

  • LED Array Lamp Part 1

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    I’ve wanted to play with individually addressable LED’s for ages and I’ve finally got around to buying some so it’s time to go it. For this project I’ve decided to build a 16×16 array of LED strips based around the common WS2812B chip. Power Since I’ll have a 16×16 array of LED’s the total count will…

  • Turned Pens – 2023 and Earlier

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    I occasionally turn a pen or two and I thought it would be nice to catalouge what I make. I’m not great at turning but I get the job done and I’m happy with the final result. This isn’t a complete list of every pen I’ve made but it’s close, I seem to recall I…