Hackaday Podcast Episode 356: Nanoprinting, Vibe Coding, And Keebin’ With Kristina, IN HELL!

This week, Hackaday’s Elliot Williams and Kristina Panos met up over coffee to bring you the latest news, mystery sound results show, and of course, a big bunch of hacks from the previous seven days or so.

We found no news to speak of, except that Kristina has ditched Windows after roughly 38 years. What is she running now? What does she miss about Windows? Tune in to find out.

On What’s That Sound, Kristina thought it was a jackhammer, but [Statistically Unlikely] knew it was ground-tamper thingy, and won a Hackaday Podcast t-shirt! Congratulations!

After that, it’s on to the hacks and such, beginning with 3D printing on the nano scale, and a couple of typewriter-based hacks.  Then we take a look at the beauty of the math behind graph theory, especially when it comes to circuit sculptures and neckties.

We also talk display hacking, macro pads with haptic feedback knobs, and writing code in Welsh. Finally, we discuss the Virtual Boy, and ponder whether vibe coding is killing open source.

Check out the links below if you want to follow along, and as always, tell us what you think about this episode in the comments!

Download in DRM-free MP3 and savor at your leisure.

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The Weird Propeller That Offers Improved Agility On The Water

When it comes to seaborne propulsion, one simple layout has largely dominated over all others. You pair some kind of engine with some kind of basic propeller at the back of the ship, and then you throw on a rudder to handle the steering. This lets you push the ship forward, left, and right, and stopping is just a matter of turning the engine off and waiting… or reversing thrust if you’re really eager to slow down.

This basic system works for a grand majority of vessels out on the water. However, there is a more advanced design that offers not only forward propulsion, but also steering, all in the one package. It may look strange, but the Voith Schneider propeller offers some interesting benefits to watercraft looking for an edge in maneuverability.

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Big Heat Pumps Are Doing Big Things

The heat pump has become a common fixture in many parts of modern life. We now have reverse-cycle air conditioning, heat pump hot water systems, and even heat pump dryers. These home appliances have all been marketed as upgrades over simpler technologies from the past, and offer improved efficiency and performance for a somewhat-higher purchase price.

Heat pumps aren’t just for the home, though. They’re becoming an increasingly important part of major public works projects, as utility providers try to do ever more with ever less energy in an attempt to save the planet. These days, heat pumps are getting bigger, and will be doing ever grander things in years to come. Continue reading “Big Heat Pumps Are Doing Big Things”

How Industrial Robot Safety Was Written In Blood

It was January 25th of 1979, at an unassuming Michigan Ford Motor Company factory. Productivity over the past years had been skyrocketing due to increased automation, courtesy of Litton Industry’s industrial robots that among other things helped to pick parts from shelves. Unfortunately, on that day there was an issue with the automated inventory system, so Robert Williams was asked to retrieve parts manually.

As he climbed into the third level of the storage rack, he was crushed from behind by the arm of one of the still active one-ton transfer vehicles, killing him instantly. It would take half an hour before his body was discovered, and many years before the manufacturer would be forced to pay damages to his estate in a settlement. He only lived to be twenty-five years old.

Since Robert’s gruesome death, industrial robots have become much safer, with keep-out zones, sensors, and other safety measures. However this didn’t happen overnight; it’s worth going over some of the robot tragedies to see how we got here.

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FLOSS Weekly Episode 863: Opencast: That Code Is There For A Reason

This week Jonathan chats with Olaf Andreas Schulte and Lars Kiesow about Opencast, the video management system for education. What does Opencast let a school or university accomplish, how has that changed over the last decade, and what exciting new things are coming? Watch to find out!

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Illustrated Kristina with an IBM Model M keyboard floating between her hands.

Keebin’ With Kristina: The One With The RollerMouse Keyboard

I just love it when y’all send in your projects, so thanks, [Kai]! But were do I even begin with this one? Okay, so, first of all, you need to know that [Kai Ruhl] built an amazing split keyboard with plenty of keys for even someone like me. Be sure to check it out, because the build log is great reading.

A lovely split keyboard on a pair of rails that doubles as a mouse.
Image by [Kai Ruhl] via Land of Kain
But that wasn’t enough — a mousing solution was in order that didn’t require taking [Kai]’s hands off of the keyboard. And so, over the course of several months, the RollerMouse Keyboard came into being. That’s the creation you see here.

Essentially, this is an ortholinear split with a built-in roller bar mouse, which basically acts like a cylindrical trackball. There’s an outer pipe that slides left/right and rolls up and down, and this sits on a stationary inner rod. The actual mouse bit is from a Logitech M-BJ69 optical number, and [Kai] operates the roller bar using thumbs.

[Kai] found it unpleasant to work the roller bar using thumbs, so mousing is done via the palm rests. You may find it somewhat unpolished with all that exposed wiring in the middle. But I don’t. I just worry about dust is all. And like, wires getting ripped out accidentally.

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The Surprising Hackability Of A Knock-Off Chinese Toy Camera

My colleague Lewin on the other side of the world has recently bought himself a new camera. It’s a very cute little thing, a Kodak Charmera, the latest badge-engineered device to carry the venerable photography company’s name. It’s a keyring camera, not much bigger than my thumb, and packing a few-megapixel sensor and a little fixed-focus camera module. They’re all the rage and thus always sold out, so when I saw something similar on AliExpress for just under a tenner I was curious enough to drop in an order. How bad could it be?

A Blatant-Knock-Off With Interesting Internals

My G6 Thumb Camera arrived a few days later, as straightforward a copy of a branded product as I have seen, and while it’s by any measure not a high quality camera, I am pleasantly surprised how bad it isn’t. I’ve received a three megapixel camera with image and movie quality that’s far better than that of the kids toy cameras I’ve played with before at a similar price, and that’s something I find amazing. This isn’t a review of a cheap camera, instead it’s an investigation of what goes into a camera like this one. How can they make a camera that’s almost useful, for under a tenner? Continue reading “The Surprising Hackability Of A Knock-Off Chinese Toy Camera”