ChainringGen is an OpenSCAD script I wrote that can generate a bike chainring with any specifications you like.
You can download ChainringGen here: https://github.com/nothinglabs/chainringgen
You can control parameters like bolt-circle-diameter (BCD), number of bolt holes, number of teeth and other stuff.
I primarily created ChainringGen … (read more)
Recently did an interview with Slashdot’s Rob Limo. Includes hints as to future cloud chamber kit.
Thanks for making me look good Rob!
Update: Part 2 of the interview is now live: http://build.slashdot.org/story/15/03/13/1652231/maker-person-rich-olson-returns-video/
-Rich… (read more)
I have finally gotten around to documenting my Arduino powered laser show that uses audio speakers for Galvos.
Full documentation and source code is available via this Instructable.
Quite happy with the way it works now:
The “home” for this project (and it’s Twitter … (read more)
Find out how to build your own peltier cloud chamber here:
http://www.nothinglabs.com/cloudchamber/
Turns out my new Thorite sample emits a fair amount of Radon 220 (aka Thoron)…… (read more)
3d print your own speaker enclosures!
This OpenSCAD / Thingiverse Customizer script lets you:
– Generate a box of any desired volume / ratio / wall thickness- Determine optimal sealed box size for any driver using Thiele / Small parameters (Qts, Vas and Fs)- Include … (read more)
A few weeks ago I gave a presentation at Ada’s Technical Books on two of my favorite projects:
Peltier Cooler Based Cloud Chamber
Arduino Powered Laser Show
Thanks to Ada’s for hosting and the great write-up in their blog and awesome photos.
If you’re … (read more)
I’ve kind of been obsessed with trying to make circuit boards on my laser cutter since I got it. Other people had already done this by using spray paint as resist – then laser-etching the paint off non-trace portions of the board. This process still … (read more)
A while back I fumbled into Acid Cow’s idea for a Money Shredding Alarm Clock.
I figured turning the concept into reality shouldn’t be too hard.
All I needed was a few main parts:
SparkFun’s ClocKit
A USB Powered Paper Shredder
TIP120 Darlington Transistor… (read more)
I’ve had my laser cutter (Full Spectrum 40-watt CO2) for about 1.5 years – and over that time have spent a good amount of time trying to make circuit boards on it. To be clear – I wanted to cut circuit boards. Others … (read more)
A little over a year ago I shared my Arduino Powered Laser Show on Instructables.
LaserTweet is a modification of the laser show that uses a Python script to search Twitter for tweets with certain hashtags – and then display them.
I’ve also put … (read more)
Recently did an interview for BBC’s Outriders radio show / podcast:
http://www.bbc.co.uk/blogs/outriders/2011/12/creators.shtml
Topics include cloud chambers, my Resistor Photo ID iPhone app and tinkering in general.
Jamillah Knowles did a great job putting this together! I came out sounding far more coherent than I … (read more)
(Note: Due to changes in iOS – this app is no longer available… sorry!)
I shipped a new iPhone app a few weeks ago – “Resistor Photo ID”
It uses your iPhone’s camera to help identify resistor values.
Back from showing off the Electronic Cloud Chamber at Maker Faire NYC – things went very well!
I managed to score three “Editor’s Choice” blue ribbons for the exhibit!
People really liked that the project is both “open source” (how to build your own … (read more)
Over the last year – I’ve toyed with the notion of making an EDF fan bike.
I finally got around to putting one together – here’s some test footage:
EDF is short for Electric Ducted Fan. They are basically enclosed propellers for model airplanes – … (read more)
Nothing Labs now has a laser cutter!
The Full Spectrum 40 Watt Laser Cutter showed up about a week ago.
Here’s a video documenting my experience thus far:
Highs:
– It works pretty well!
– Deluxe package really includes everything you need to start cutting … (read more)
I just did another Instructable – Easy, Reversible Motor Control for Arduino (or any Microcontroller) (wow – that’s a mouthful…).
It is the result of my effort to come up with something less annoying to construct than an H-Bridge – using just locally available parts … (read more)