1. I Made Anpan

    Published: Mon 07 February 2022
    Updated: Mon 07 February 2022
    By John McCardle

    In food.

    Finished anpan buns and a bitten bun

    A First Attempt at Buns

    I had a TDY to Guam when I was 19 or 20 years old. While there, a Japanese guy sold me a bun with a filling unlike anything I'd ever tasted. Thanks to the language barrier, I never knew what it was called - I just …

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  2. 3D Printed Plaques for Hams

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    Thank Your Peers With 3D Printing

    In January 2021, I made some plaques to thank my fellow officers for their service to our amateur radio club.

    I used GIMP, Inkscape and OpenSCAD to convert every color of our club's logo into a different height on a 3D object. You can …

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  3. Plycard: structural cardboard

    What's the Structural Integrity of Garbage?

    I've received a lot of shipments over the pandemic. The boxes can be broken down flat, but they're in truth not that easy to rip apart or fit into a garbage or recycling can. I've thought about burning them. But, all this gently-used cardboard …

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  4. An adjustable laptop stand

    December 2020: a CAD and 3D Print Project to Reclaim my Desk

    I use some 3D printed laptop stands to reclaim desk space from my laptop-centric computing setup. The angle on those stands is fixed, but they're very sturdy. However, I was getting a bit annoyed reprinting customized stands to …

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  5. Tiny Tank - Resurrecting a Kit From 2010

    The finished Tiny Tank

    Tiny Tank

    I dusted off a kit tank I've had laying around for a decade (+/-).

    I built the project I would have always liked to, but this time with a Raspberry Pi Zero W. I salvaged almost all of the hardware (chassis, motor controller, motors) and had an analog infrared …

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  6. Ode to Junkheap: State of My First 3D Printer

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    The Junkheap

    This post will be an overview of my journey keeping a piece of junk kit printer running.

    Getting Started

    In September of 2018, I bought my first 3D printer: an Anet A8 kit for $170. I did plenty of reading before it arrived, and I made some mods …

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  7. Custom Gavels for the KSC Anime Club

    Picture of Gavels

    A Tale of Two Gavels

    I'm an officer of Kennedy Space Center's Anime club, KSC Anime. We inherited the club, sort of, and I reckon we are about the 3rd generation of officers in as many years.

    This post is not about anything the club has done. This post is …

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  8. Setting Up DNS


    Domain Name Service / System. In a nutshell, this converts domain names like "kn4obl.net" to an IP address like "". Only IP Addresses can be routed over the internet, but humans have a much easier time remembering words or phrases. In the distant past of the …

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  9. Capstone Resume

    Picture of John


    I'm John McCardle, an upcoming Cyber Intelligence graduate from University of South Florida.

    I have a very diverse set of interests, as my degree would suggest. Other than the courses my Master's degree requires, here's a few of the things I've worked on since becoming a graduate student in …

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