July 21, 2017

MHVLUG main site

Meeting Notes for July: Mad Science Fair

Auditorium, Our Lady of Lourdes HS, Poughkeepsie, NY

This month is one of our favourite things - the Mad Science fair, where folks get some time to show off things they have been working on - some working, some maybe not so much - to a appreciative and curious audience!

This year, we had NINE (!) presenters. There were no lightning talks and after a brief intro by Sean, everyone just dove right in!


Ed Nisley - lights and things. 
Tamer Abuelsaad: Power of the Landline - getting power from the telephone line
Sean Swela 3D printing for "cheap" - featuring a working 3D printer that "didn't cost much" - at least until the repairs started....
Joe Apuzzo: old video games on RPi (RetroPie)
Mat Treinish: headphone amp featuring (gasp!) TUBES!
Eric: RPi camera and Hotspot. (Not working yet)
        RPi wifi repeater (Nearly working... needs some work)
Sean Dague : Home assistant in a box.
Mike Muller: keyboards, accustical stuff, sequencing - all on a Rpi.
Mathias Johnson: DJ and lights.

For a full set of images of the event, see our Meetup Page!

Meeting Link: 
Number of Attendees: 
Filed Under: 

The Smell of Molten Projects in the Morning

Tour Easy Daytime Running Light: Ball Clamp Ring

The inside of the arch requires only a bit of cleanup with a ball mill

July 20, 2017

The Smell of Molten Projects in the Morning

Tour Easy Daytime Running Light: Flashlight Ball

Assembled the ball and introduced it to Mr Belt Sander

July 19, 2017

The Smell of Molten Projects in the Morning

Tour Easy Daytime Running Light: Fairing Clamp Plates

The inner plate is just a plate blank stamped with the bracket

Sean's Mental Walkabout

Triple Bottom Line in Open Source

One of the more thought provoking things that came out of the OpenStack leadership training at Zingerman's last year, was the idea of the Triple Bottom Line. It's something I continue to ponder regularly.

The Zingerman's family of businesses definitely exist to make money, there are no apologies for that. However, it's not their only bottom line that they measure against they've defined for themselves. Their full bottom line is "Great Food, Great Service, Great Finance." In practice this means you have to ensure that all are being met, and not sacrifice the food and service just to make a buck.

If you look at Open Source through this kind of lens, a lot of trade offs that successful projects make make a lot more sense. The TBL for OpenStack would probably be something like: Code, Community, Contributors. Yes, this is about building great code, to make a great cloud, but it's also really critical to grow the community, and mentor and grow individual contributors as well. Those contributors might stay in OpenStack, or they might go on to use their skills to help other Open Source projects be better in the future. All of these are measures of success.

This was one of the reasons we recently switch the development tooling in OpenStack (DevStack) to using systemd more natively. Not only did it solve a bunch of long standing technical issues, that had really ugly work arounds, but it also meant enhancing our contributors. Systemd and the journal are default in every new Linux environment now, so skills that our contributors gained working with DevStack would now directly transfer to any Linux environment. It would make them better Linux users in any context, not just OpenStack. It also makes the environment easier for people coming from the outside to understand, because it looks more like what they are used to.

While I don't have enough data to back it up, it feels like this central question is really important to success in Open Source: "In order to be successful in this project you must learn X, which will be useful in these other contexts outside of the project." X has to be small enough to be learnable, but also has to be useful in other contexts, so time invested has larger payoffs. That's what growing a contributor looks like, they don't just become better at your project, they become a better developer for everything they touch in the future.

July 18, 2017

The Smell of Molten Projects in the Morning

Layout Pen For Black Objects

"Strong ceramic 0.9MM white lead"

July 17, 2017

The Smell of Molten Projects in the Morning

July 16, 2017

The Smell of Molten Projects in the Morning

Tour Easy: White ABS vs. Six Years of Sunlight

The effect 2000+ hours of sunlight has on ABS plastic

July 15, 2017

The Smell of Molten Projects in the Morning

Monthly Image: Mystery Lizard

We left it to seek its own destiny

July 14, 2017

The Smell of Molten Projects in the Morning

Cylindrical Cell Adapter: 18650 to 3xAAA

They're nigh onto 4 mm smaller… and rattle around something awful
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