Hackaday Podcast 233: Chandrayaan On The Moon, Cyberdecks, Hackerspaces Born At A German Computer Camp

August 25, 2023 by Kristina Panos 5 Comments

This week, Editor-in-Chief Elliot Williams and Kristina Panos experimented with the old adage that brevity is the soul of wit. That’s right; this week, they’re all Quick Hacks, and that’s to make room for a special series of interviews that Elliot recorded at CCCamp with the pillars of US hackerspace creation. This one’s really special, do have a listen.

We still made room for the news this week: India launched Chandrayaan-3, which combines an orbiter, lander, and rover all in one. Then it’s on to the What’s That Sound results show, and while Kristina did not get it right, she did correctly identify it as being used in Whitney Houston’s “I Wanna Dance With Somebody”, as did one of the guessers who identified it as the cowbell sound from a Roland 808.

Then it’s on to the (quick) hacks, where we alternated for once just to keep things interesting. This week, Elliot is into 3D printing a clay extruder and then printing pottery with that, z-direction conductive tape, and the humble dipole antenna. Kristina is more into cyberdecks for the young and old, a reusable plant monitor, and 3D printing some cool coasters.

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 and savor at your leisure.

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Squid-Con Brings Joy To All

August 24, 2023 by Kristina Panos 2 Comments

While we’re always happy to see accessibility aids come into fruition, most of them focus on daily tasks, not that there’s anything wrong with that. But what about having some fun? That’s the idea behind [Akaki Kuumeri]’s accessibly-awesome Joy-Con controller, the Squid-Con, which provides access to every button with just one hand. It even has tripod and AMPS mounts.

The joysticks themselves are controlled with the thumb and pinky, although some of [Akaki]’s beta testers changed it up a bit. That’s okay, because it’s designed to be comfortable in a variety of positions for either hand. As for the ABXY buttons, those are actuated using 3D-printed arms that connect to a central piece which [Akaki] calls the turbine.

But perhaps the coolest part of this project is the flexures that actuate the shoulder buttons (L, R, zL, and zR) on the controllers. It’s a series of four arms that are actuated by bringing the fingers back toward the palm. If all of this sounds confusing, just check out the video after the break.

We love flexures around here, and we’ve seen them in everything from cat feeding calendars to 6-DOF positioners to completely new kinds of joysticks.

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Custom Font Generation Means Boss Embossing

August 23, 2023 by Kristina Panos 19 Comments

[Attoparsec] loves learning languages, but says they have a hard time retaining anything. We find that hard to believe given the number of tongues that [Attoparsec] was able to translate into embossing plastic. That’s right, this project is about making custom font wheels for an embosser, formerly known as a label maker.

If you think this seems like a finicky and perhaps lengthy mission to undertake, you’re right. In case you’re unfamiliar, ye olde embosser uses both a positive and a negative of each glyph in order to impress the sticky-backed plastic strip. It all started when [Attoparsec] found out about the Dymo 1595, which comes with font wheels for both Japanese hiragana and katakana in addition to English.

After sacrificing the English wheel, it was time to model the wheel part itself. That was easy enough, but the characters themselves were another story. Because of how the thing works, the negative has to be bigger than the positive to provide enough room for the tape. After trying to achieve the right draft angle on the characters in several CAD packages, [Attoparsec] was told that it should be fairly easy in OpenSCAD, and it was.

Printing in resin took about five hours to do both wheels at once. Once [Attoparsec] had the workflow down, they were off to the races. In this video alone, they made Old English, Esperanto, the International Phonetic Alphabet, an alphabet created by playwright George Bernard Shaw, Palm Pilot input script, and of course, Tolkein’s Tengwar. Be sure to check out the video after the break.

Tired of turning the wheel of your embosser to make labels? Automate the process with a stepper motor or two.

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3D-Printed Woven Coasters Save Tabletops In Style

August 20, 2023 by Kristina Panos 6 Comments

When regular people think of 3D printing, they likely imagine semi-newfangled objects like twisty vases and useless trinkets. But there is so much more to 3D printing, as [andrei.erdei]’s printed, woven coasters demonstrate.

The design is based on the stake and strand basket weaving technique, which uses rigid strips called stakes in one direction and thinner strips called strands in the other. Since the flexibility of PLA is questionable, [andrei] printed the stakes already bent in a square wave pattern that accommodates the strands fairly easily. To tie the coasters together and make them look more polished and commercial, [andrei] designed a holder as well.

The awesome thing about this technique is that you can do so much with it, like varying the stakes’ widths or making them diagonal instead of square. [andrei] designed these in Tinkercad using Codeblocks; of course, they are open source. Be sure to check out the assembly video after the break.

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

Keebin’ With Kristina: The One With The QWERTY Drum Set

August 15, 2023 by Kristina Panos 1 Comment

What does portability in a keyboard mean to you? For Hackaday’s own [Brian McEvoy], the image evokes that quintessential 80s instrument, the keytar.

But those left-hand keys aren’t just for show — they’re macro keys. It runs on an Adafruit Feather 32u4 Bluefruit, so [Brian] can forego the cord and rock out all over the room.

I love the construction of this keyboard, which you can plainly see from the side. It’s made up of extruded aluminum bars and 2 mm plywood, which is stacked up in layers and separated with little wooden donuts acting as spacers. Unfortunately, [Brian] accidentally made wiring much harder by putting the key switches and the microcontroller on different planes.

Although you could theoretically use any key switches for this build, [Brian] chose my personal and polarizing favorite, browns. If you’re going to use a travel keyboard, you’re probably going to be around people, so blues are probably not the best choice. With browns, you kind of have yourself a middle ground, best-of-both-worlds thing going on. The keycaps are among the best parts of this build, and it seems [Brian] chose them because the legends are on the sides, which makes it much easier to type on while wearing it. Kismet!

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Hackaday Podcast 229: DIY VR, Gutting Voice Assistants, And ChatGPT Failing Its Summer Internship

July 28, 2023 by Kristina Panos 1 Comment

This week, Editor-in-Chief Elliot Williams and Kristina Panos braved the slight cold and the high heat respectively to bring you the best hacks of the previous seven days. In the news this week: you’ve got a second and final chance to get your Supercon talk proposals in! So get on that, because we need YOU to help make Supercon awesome.

We can chalk up a win for Kristina on What’s That Sound this week (finally!). Will you get it right? Will you get it exactly right? Time and Elliot’s fancy dice will tell.

Then it’s on to the hacks, where we check out a cool RFID emulator e-paper badge, discuss whether a certain type of record player is better off as a cyberdeck, and look through the eye of a Gameboy-style camera for the Playdate console.

From there we take a look at gutting and rooting voice assistants, a solenoid keyboard, and a beautifully rebuilt VR headset that now does AR as well. Finally we talk autonomous solar boats, lambast ChatGPT as the worst summer intern ever, and ponder what makes a thing count as Linux or not.

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 and savor at your leisure.

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2023 Cyberdeck Challenge: Crosberry Pi Loves Lo-Fi Hip Hop

July 22, 2023 by Kristina Panos 1 Comment

As far as we can tell, the only real selling point that any portable record player offered was, well, its portability. To be clear, the sound is never that great. But perhaps a selling point for this crowd is that they usually come in hinged cases with handles, and you know what that means — cyberdeck that thing!

[Mx. Jack Nelson] started gutting this Crosley CR40 record player to make a Raspberry Pi housing, but it quickly turned into a cyberdeck project with the addition of a 10.1″ portable monitor, a Planck ortholinear keyboard, and a gutted trackball mouse.

We love that [Mx. Jack Nelson] made use of the Crosley’s original speakers — this was the wife’s idea! — as well as the volume and tone knobs. But our favorite part has to be the clear acrylic top that both protects the electronics and provides a platform for the keyboard and mouse buttons. Be sure to check out the demo video after the break.

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