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johnowhitaker

Programmer, general tinkerer, student, musician and general nerd :D

Harare, Zimbabwe
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johnowhitaker

Things I've Built

ATX Bench Power Supply

A nice power supply made from an old PC PSU. One of the most used projects I've ever made.

Cellphone Macro Lens

Not sure if this counts as a project - all I did was attach a lens from a dvd player to my phones camera to use as a microscope in some research I was doing :)

IR Webcam

A webcam which I converted to see in the near infra-red spectrum. Coke looks transparent, banknotes reveal hidden patterns and most importantly IR laser diodes are visible, which allows me to test them without destroying my eyes.

Miscellaneous high voltage shennanigans

Mini tesla coils, VDGs, flyback transformers, various other ways of electrocuting myself... Almost none of them documented or photographed :P

Laptop-in-a-briefcase

I repaired a broken old laptop and then decided to give it a second life by flipping the screen and mounting it in a briefcase as a portable display.

Multi-touch table

A multi-touch surface using my IR webcam and the CCV software. Running some simple pyMT demo apps at the moment. Only hardware aside from the camera was a cardboard box, a sheet of paper and some perspex - all the magic happens in software.

3D scanner

A really basic 3D laser scanner. Based on the makerscanner but built without a 3D printer.

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Steve Schuler wrote 05/03/2016 at 15:44 point

Thanks for following!

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jarek319 wrote 04/14/2016 at 17:22 point

thank you for the skull :)

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marcell marosvolgyi wrote 03/18/2016 at 15:21 point

Thanks for the skull!

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danjovic wrote 01/29/2016 at 22:31 point

Thanks for the skull to #Oh Cheat!

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johnowhitaker wrote 01/30/2016 at 05:58 point

Welcome :) I'm probably going to be building something simmilar and you made my life easy! :P

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esot.eric wrote 12/23/2015 at 16:59 point

Thanks for the project-follow!

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esot.eric wrote 01/28/2016 at 03:05 point

Howdy, Friend! Thanks for the latest! Oh, BTW, I just inheritted an old toner cartridge, so laser-melting-experiments are on their way :)

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johnowhitaker wrote 01/28/2016 at 18:12 point

Ah great! After some deliberation I decided that I couldn't bear leaving my projects behind, so now I'm back at university with fewer clothes and a suitcase full of parts that must have given the airport security guys a shock :P I am hoping to do some tests as soon as I get everything working again. I look forward to seeing what you come up with!

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esot.eric wrote 01/29/2016 at 04:13 point

hahaha, awesome!

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esot.eric wrote 04/06/2016 at 01:31 point

Thanks for another! And it's been a few months, but the laser-melting experiments are now underway. Thanks for the inspiration!

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esot.eric wrote 04/21/2016 at 06:56 point

Thanks for another, and for including me in your blog-worthy PCB-Printer!

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Stefan Lochbrunner wrote 12/08/2015 at 16:00 point

Hey, thanks for following (and the skull way back during the EDC contest)! :)

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Stefan Lochbrunner wrote 03/04/2016 at 21:16 point

Thanks for another skull & follow! Once it's done I'll have give your toner process a try :)

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