XR2206 Function Generator

While in Norvac The other day I was browsing in the IC section and came across this little gem:


I think it was the Jim-Pak packaging that did it (Jim-Pak was a single serving component vendor that has sadly gone the way of the sort of places that sold it)

GBC H110 Laminator



PC board etched out using the toner transfer paper method. Left side is plain, right side used Green TRF

part of http://dorkbotpdx.org/blog/drtwist/laminators_green_trf_and_you

Laminators, Green TRF, and You

I've always made PCB's by the Photo fab method, with varying but never entirely satisfactory results. I was also somewhat put off by the need to buy pre-sensitized boards, at ridiculous prices. at a meeting earlier this year I was talking to Don ( feurig ) about it and he suggested I try the Toner Transfer Method (note reverent capitals).

Overheard at dorkbot last night...

The following was heard over a soldering iron at our casual Dorkbot gathering last night:

"Christ, that night in the hospital...my underwear was covered in ferric chloride stains."

Heh.  :) I couldn't stop laughing....only at Dorkbot!

Some of the tiniest soldering I've ever done

In the last week or two I've been doing some of the smallest soldering I've ever attempted.

It all started with the KOLPXNTY board I've been designing and prototyping. I won't dive into detail here (maybe later!?), but the basic goal is to trigger a fairly large number of circuit bent devices from a networked computer.


I'll put up a documentation page if/when it's more relevant.

stepper motors and cassette tapes, something I call the Ca.Step

Hey all,

A friend directed me toward Dorkbot for help with my project. To put it most bluntly, I want to control a cassette tape with a pair of stepper motors via MIDI. From my research, I think the easiest way to build a prototype would be with a make controller programmed with MAX/MSP. My personal background is in studio engineering and production. I am knowledgeable in most forms of audio manipulation. Unfortunately I have yet to learn the ins and outs of MAX.

A rough render of the Ca.Step

A rough render of the Ca.Step

Home brew swingbike.

Home brew swingbike.

Swing bike multispeed with working gears and brake.

Got stolen. after being in service for ~3 yrs.

Flip flop operated PVC Pipes

Flip flop operated PVC Pipes

Built for sound. Beautiful sounding bass sound. tuned PVC pipes. hit with flip flops.

That was me busking at Last thursday under the awning of acme glass.

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