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Channel: Colin Karpfinger – Colin Karpfinger
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Zero-Op Mercenary Automated Paintball Sentry Gun

Like the best of projects, this started with a question- “I wonder if it’s possible…”. It turns out the answer is YES!, but not without a lot of hard work.  This project alone was my crash course in...

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Moving Cross-country via UPS / Fedex

I moved cross country from Minneapolis to San Francisco in February 2010.  I arrived to an empty room with 3 bags, and a debit card that Wells Fargo thought was stolen.  A few days later UPS delivered...

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Ordering PCBs Designed With EAGLE

So you’ve figured out EAGLE’s design quirks, you’ve routed all your airwires and you’re wondering what next.  This guide will take you from a .brd file in EAGLE to a professionally made PCB. As of now...

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Clients Mentioned in Minneapolis Star Tribune

I’m happy to see a couple Punch Through Design clients getting press.  Both Pedal Brain and Shepherd are mentioned in the article: The iPhone and the iPod Touch, it’s a pretty cheap platform and it...

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New Punch Through Design Website

I had the Punch Through Design website re-done, and I’m loving the clean new look.  I was referred to the designer, Norm Orstad of Orstad Design, by a mutual friend, and I’m very happy with the...

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The Dropout’s Guide to PCB Trace Antenna Design

“There are 2 ways to learn antenna design.  One way is to go to grad school.  I’ll teach you the other way” -A mentor of mine Engineers love to refer to wireless as ‘black magic’.  Which is partly...

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Announcing Thumbies – Solving all your iPhone gaming frustation

I’m quite happy to announce that Thumbies are now available nationwide at BestBuy locations, and online! Thumbies Standard Pack at BestBuy – $14.99 Thumbies Pro Pack at BestBuy – $19.99 The iPhone was...

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Rusty Forks (not spoons)

It’s cool living blocks from the ocean, except in San Francisco, where that just means cold-ass fog.  Being San Francisco, that could also be cold ass-fog.  Either one is bad for your motorcycle.  (for...

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Functional art with Arduino: A painting that displays the surf report

  I made a piece of functional art with the LightBlue Bean! It uses python to pull the report, and the LightBlue Bean (essentially a BLE Arduino) to receive the data over bluetooth low energy and set...

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Slab Desk

I wanted to build a new desk for my room that looked nice but was substantial and sturdy feeling. After making tons of furniture with iron pipe fittings I decided to try something new. The legs are a...

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