Cockroaches In Space: Waste Processing And A Healthy Protein Source Combined

As the current frontier of humanity in space, the International Space Station is heavily reliant on Earth not only for fresh supplies but also as a garbage disposal service for the various types of waste produced on the ISS by its human occupants. As future manned missions take humans further away from Earth, finding ways to reprocess this waste rather than chucking it out of the nearest airlock becomes a priority. One suggested solution comes from a Polish company, Astronika, with their insect bioreactor that can process organic material into useful biomass.

Interestingly, the cockroach species picked was the Madagascar hissing cockroach, one of the largest (5 – 7.5 cm) species. This is also a cockroach species which is often kept as a pet. In this closed-loop bioreactor that Astronika has developed, these cockroaches would chew their way through up to 3.6 kg of waste per week in the large version, with the adult cockroaches presumably getting turned into fresh chow and various materials at some point. Beyond the irrational ‘yuck’ factor that comes with eating insect protein, one of the biggest issues we can see with this system is that the long-duration mission crew may get attached to the cockroaches, as they are rather cute.

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Tinkering With Klipper: Making The ManiPilator Robotic Arm

[Leo Goldstien]’s entry into the world of robotics has been full of stops and starts. Like many beginners, he found traditional robotics instructions overwhelming and hard to follow, bogged down with dense math that often obscured the bigger picture. So he decided to approach things differently and create something with his own hands. The result? A 3D-printed robotic arm he affectionately calls “ManiPilator.”

This article is the first in a three-part series documenting [Leo]’s hands-on approach to learning robotics from the ground up. Building ManiPilator became an opportunity to learn by doing, and the project took him on a journey of experimenting, failing, and eventually succeeding in tasks that seemed deceptively simple at first glance. Each hurdle provided him with insights that more traditional learning methods hadn’t delivered. Below is one of the videos [Leo] captured, to show one step in the process: doing a check using multiple motors.

To make his project work, [Leo] relied on open-source software like Klipper, piecing together code and hardware in a way that made sense to him. In sharing his story, he offers fellow beginners an approachable perspective on robotics, with practical insights and candid reflections on the challenges and breakthroughs.

[Leo]’s project shows that there’s more than one way to start exploring robotics, and that sometimes the best way to learn is simply to dive in and start building. Follow along with his journey as he tackles the complexities of robotics, one step at a time.

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2024 Hackaday Superconference Speakers, Round Two

It’s honestly amazing the range of fascinating talks we have lined up for this year’s Supercon. From art robots that burp and belch to gliders returning from near-space, from hardcore DSP to DIY PCBs, and sketching with machines, Hackaday’s Supercon is like nothing else out there.

And in case you’re already coming, you don’t have a talk slot reserved, but you’ve still got something that you want to say, please sign yourself up for a Lightning Talk! In the spirit of the Lightning, we’ll be taking submissions up to the absolute last minute, and we will fit in as many short talks as possible, but when it does fill up, we’ll be giving priority to those who got in first.

We’ve got one more speaker announce coming up, and of course our keynote speaker and the badge reveal. Supercon will sell out so get your tickets now before it’s too late. So without further ado, here is our next round of stellar speakers!

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Supercon 2023: The Road To Writing Great Step-by-Step Instructions

IKEA is known as a purveyor of build-it-yourself flatpack furniture. LEGO is known as a purveyor of build-it-yourself toys. Both are known for their instructions. The latter’s are considered incredibly clear and useful, while the former’s are often derided as arcane and confusing—though the major difference between the two is color printing.

These two companies are great examples of why instructions are important. Indeed, Sonya Vasquez has learned this lesson well, and came down to Supercon 2023 to tell us all about it. Prepare to learn all about how to write great step-by-step instructions that enable greatness and never frustrate the end user.

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2024 Hackaday Supercon Workshop Tickets Go On Sale Now

Our workshop ticket sales go live today at 8 AM PDT! If you’re coming to Supercon, and you’re interested, go get your workshop ticket before they all sell out!

There will be a change to this year’s workshop ticket limits. We heard our community’s feedback, and in the spirit of giving as many people as possible the opportunity to enjoy a workshop, we are limiting sign up to one workshop per attendee. If there are extra tickets by October 18th, we will allow folks to sign up for additional workshops.

If you register for more than one workshop we will refund you the ticket for the others based on the timestamp that you registered for each ticket (leaving only the ticket for the first workshop you registered for). We hope everyone understands our goal is to allow more people to experience a Supercon workshop due to limited space.

And of course, you can’t join in the workshops at Supercon without coming to Supercon. So get your tickets now if you haven’t already.

Stay tuned tomorrow for more speaker announcements!

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Robotic Touch Using A DIY Squishy Magnetic Pad

There are a number of ways to give a robotic actuator a sense of touch, but the AnySkin project aims to make it an overall more reliable and practical process. The idea is twofold: create modular grippy “skins” that can be slipped onto actuators, and separate the sensing electronics from the skins themselves. The whole system ends up being quite small, as shown here.

Cast skins can be installed onto bases as easily as slipping a phone case onto a phone.

The skins are cast in whatever shape is called for by using silicone (using an off-the-shelf formulation from Smooth-on) mixed with iron particles. This skin is then slipped onto a base that contains the electronics, but first it is magnetized with a pulse magnetizer. It’s the magnetic field that is at the heart of how the system works.

The base contains five MLX90393 triple-axis magnetometers, each capable of sensing tiny changes in magnetic fields. When the magnetized skin over the base is deformed — no matter how slightly — its magnetic field changes in distinct ways that paint an impressively detailed picture of exactly what is happening at the sensor. As a bonus, slippage of the skin against the sensor (a kind of shearing) can also be distinctly detected with a high degree of accuracy.

The result is a durable and swappable robotic skin that can be cast in whatever shape is needed, itself contains no electronics, and can even be changed without needing to re-calibrate everything. Cameras can also sense touch with a high degree of accuracy, but camera-based sensors put constraints on the size and shape of the end result.

AnySkin builds on another project called ReSkin and in fact uses the same sensor PCB (design files and bill of materials available here) but provides a streamlined process to create swappable skins, and has pre-made models for a variety of different robot arms.

2024 Hackaday Superconference Speakers, Round One

Supercon is the Ultimate Hardware Conference and you need to be there! We’ve got a stellar slate of speakers this year — way too many to feature in one post. So here’s your first taste, and a reminder that Supercon will sell out so get your tickets now before it’s too late.

In addition to the full-length talks, we’ve got a series of Lightning Talks, so if you want to share seven minutes’ of insight with everyone there, please register your Lightning Talk idea now.

But Supercon has a lot more than just talks! The badge heavily features Supercon Add-Ons, and we want to see the awesome SAOs you are working on. There will be prizes, and we’ll manufacture four of our favorite designs in small batches for the winners, and make a full run for Hackaday Europe in 2025. Want to know more about SAOs? They’re the ideal starter PCB project.

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