If you’re building something that moves, chances are you’ll be using an electric motor. There are tens of thousands of different motors out there, each with their own properties, speeds, torque, and sizes. How do you pick the right motor? Most of the time it’s a highly educated guess, but [Solenoid] has a better idea: just 3D print a motor designed by a calculator that will give you the properties you need
This entry for The Hackaday Prize is just a web-based calculator for motor designs that takes torque, speed, size, or form factor as an input and spits out a complete motor design. Sure, you’ll need to wind coils on a 3D printed frame, but this calculator removes the need to calculate inductance, coil capacitance, and all the other bits needed to construct an efficient motor.
While actual products made in the millions will still be using off the shelf motors, this project is perfect for one-offs. If you want to motorize a telescope mount, this project will design a motor given the power and resolution per steps required. If you want to build a wind turbine, this calculator will put blades right on the outrunner of a brushless motor. It’s a great project, and something we can’t wait to see the results of.
A common theme in The Hackaday Prize and Hackaday.io in general is tools to make more tools. There are a lot of people out there trying to make the next Bus Pirate, and simply measuring things is the first step towards automating a house or creating the next great blinkey invention.
In what is probably the most capable measurement system in the running for this year’s Hackaday Prize, [jithin] is working on a Python Powered Scientific Instrumentation Tool. It’s a microcontroller-powered box containing just about every imaginable benchtop electronics tool, from constant current supplies, LCR meters, waveform generators, frequency counters, and a logic analyzer.
This project is stuffed to the gills with just about every electronic tool imaginable; there are programmable gain amplifiers, voltage references, DACs and constant current sources, opamps and comparators, all connected to a bunch of banana jacks. All of these components are tied up in a nifty Python framework, allowing a bunch of measurements to be taken by a single box.
If that’s not enough, [jithin] is also working on wireless extension nodes for this box to get data from multiple acquisition points where wires would be unfeasible. This feature uses a NRF24L01+ radio module; it’s more than enough bandwidth for a lot of sensors, and there’s enough space all the wireless sensors you would ever need.
In case you’re not aware, we’re running a contest to send one lucky hacker into space. We’re already giving out $50k in prizes to entice the most worthy hackers to submit their project to the The Hackaday Prize. Now it’s time for community voting, and that means trotting out Astronaut Or Astronot, where you decide the best project for this week’s theme. Projects voted into the top ten for each theme will receive Hackaday Prize t-shirts.
But there’s something in it for you too. Everyone who votes in the community voting rounds will be eligible to win a $1000 gift card to The Hackaday Store.
Most Likely To Be Widely Used
This week’s round of community voting will decide which project entered into the Hackaday Prize will be the most likely to be widely used. Everyone on Hackaday.io gets 50 votes to pick the project that will be the most popular, most game changing, and most useful. Head on over to the voting page and spend those votes wisely.
Submit Your Entry For Community Feedback
We’ll be doing a new round of community voting as often as every seven days. Everyone registered on Hackaday.io gets 50 votes for each round of voting, and every Friday (around 20:00 UTC), we’ll randomly select one person registered on Hackaday.io. If that person has voted, they get a $1000 gift card for The Hackaday Store. If they haven’t vote — nothing.
So what do you need to get in on this action? Vote, obviously. We’ll be tracking which projects make it to the top of the list, and next week we’ll do it all over again. Enter your project now because we’re giving away a trip to space and hundreds of other prizes.
Despite the existence of FPGAs and CPLDs, there’s still a necessity for very small programmable logic devices. GALs, PALs, and other old tech just won’t cut it, though, and so we are left with a new generation of programmable devices that aren’t microcontrollers or CPUs. The GreenPAC from Silego fill this niche quite nicely, with the ability to implement counters, ADCs, logic glue, level shifting, and comparators in a single chip. For any homebrew electronics tinkerer, these devices have one very obvious problem: they’re really, really small. The smallest GreenPAC device has 12 pins stuffed into a 1.6 x 1.6mm QFN package. You’re not hand soldering this thing.
For [Nick Johnson]’s Hackaday Prize entry, he’s taking these small programmable logic chips and making it easy to create your own custom ICs. Basically, it’s a breakout board for GreenPAC devices that stuffs these tiny chips onto a much more reasonable DIP package.
Breakouts aren’t enough, and to program these small chips, [Nick] is also building a board based on an ARM microcontroller. With USB input, a way to generate the 7.5V used for programming, and a breadboard friendly format, this programmer will tell these tiny chips what to do.
Not many people are building stuff with PALs and GALs anymore, but there are still a lot of work that can be done with small programmable chips. There’s certainly a place for tiny programmable logic chips like this, and anything that gets them in to the hands of more people is okay in our book.
The world has a severe lack of robots, and the shortage of walking robots is untenable. We were promised flying cars and fusion reactors, yet here we are, 15 years into the twenty-first century without even a robotic pet spider.
[Radomir]’s entry for The Hackaday Prize aims to fix this bizarre oversight of scientific and technological progress. He’s designed a small, inexpensive, but very well designed quadrupod robot that will put full reverse kinematics on your desk for under $50.
To solve humanity’s glaring lack of walking robots, [Radomir] designed Tote, a four-legged robot whose chassis is mostly composed of only 9 gram servos. There are twelve servos in total, three on each of its four legs. It’s an extension of his earlier µKubik robot. While the µKubik was powered by Python, the Tote is all Arduinofied, calculating the trajectories of each leg dozens of times a second with an Arduino Pro Mini.
This isn’t the only walking robot kit on hackaday.io; last year, [The Big One] created Stubby the Teaching Hexapod. Even though Stubby featured six legs, it’s still remarkably similar to Tote; 9 gram servos provide all the locomotion, and all the software is running on a relatively small ATMega microcontroller. Both are great introductions to walking robots, and both bots will surely be capable and just rulers of mankind after the robot apocalypse.
There are a lot of neat toys and accessories that rely on 3D printing filament. The 3Doodler is a 3D printing pen, or pretty much an extruder in a battery-powered portable package. You can make your own filament with a Filastruder, and of course 3D printers themselves use up a lot of filament. [Bodet]’s project for this year’s Hackaday Prize gives those tiny scraps of leftover filament a new life by welding filament together.
The EasyWelder [Bodet] is designing looks a little bit like a tiny hair straightener; it has a temperature control, a power switch, and two tips that grip 1.7 or 3mm diameter filament and weld them together. It works with ABS, PLA, HIPS, Nylon, NinjaFlex, and just about every other filament you can throw at a printer. By welding a few different colors of filament together, you can create objects with different colors or mechanical properties. It’s notas good as dual extrusion, but it does make good use of those tiny bits of filament left on a mostly used spool.
Since the EasyWelder can weld NinjaFlex and other flexible filaments, it’s also possible to weld NinjaFlex to itself. What does that mean? Custom sized O-rings, of course. You can see a video of that below.
The Zero to Product workshop, held at the Hackaday Design Lab in Pasadena two weeks ago, was a packed house of talented people seeking to expand their skill set with professional PCB layout tips and tricks. [Matt Berggren] didn’t disappoint, bringing his professional experience to the table in a way that anyone with basic electronic knowledge can grasp. Learning the things that make a board reliable and manufacturable can be done with a simple design. In the case, the culmination of the workshop is development board to host the ESP8266 WiFi modules that have been so popular over the last half-year.
This isn’t the first time we’ve pulled off a massive hardware hackathon and meetup, and it certainly won’t be the last. You have another chance to participate in the workshop in San Francisco on June 13th. If you can’t catch that one, we’ll be in Shenzhen for the Shenzhen Maker Fare, a Zero to Product workshop, and a meetup.
The completed ESP8266 breakout presented during the talk
Of course Hackaday events are never “all work and no play”. The day crept into night and the the chairs were cleared out for hightop tables and tasty beverages. The atmosphere was festive and everyone still made it back early the next morning for an entire day of hardware hacking, tinkering, and general futzing around with circuits and electrons. If you check out [Rich Hogben]’s photo log of the weekend, you’ll find some an impressive collection of hackers were there. I see at least one person who’s job is flying space probes, a Hackaday Prize judge, and a security researcher who can crack a Master Lock in 30 seconds.
The display for [Steve]’s LIDAR
Bar-time Show and Tell
The meetup Saturday night wasn’t technically a bring-a-hack event, but we walwasy want to see people’s latest and greatest contraptions. [Steve Collins] brought a homebrew LIDAR. This project was based on a SparkFun Time of Flight breakout board that scans the room with a cheap hobby servo, reads the data into an Arduino and displays the rangefinding data on a small TFT. The LIDAR is good enough to scan the entire Hackaday Design Lab, with more than enough resolution for any robotics project you have in mind.
Also at the Saturday night gathering was our very own mythical creature [Sophi Kravitz], [Elecia White] who is and embedded.fm podcaster, engineer, and Hackaday Prize judge two years in a row, and [Samy Kamkar] known for his privacy and security research and for building the KeySweeper. They gave a series of lightning talks about the latest things they’re working on:
We rented Galaga and Ms. Pac Man machines for the entire weekend, but that wasn’t the only electronic entertainment for the party. Two Bit Circus was there with a game that could only be described as highly disorganized electronic chess. FLED, the exceedingly large, high-resolution RGB LED display was behind the bar, and Deezmaker took over a room to 3D scan people and print out miniature clones on a pair of 3D printers.
The Hackathon
The events continued on until Sunday evening with a hardware hackathon. This isn’t your run-of-the-mill software hackathon where people sit behind their MacBooks the entire time; we had soldering irons, components, solder, solder wick (important!) and dozens of hardware hackers tinkering away at their latest electronic doodad.
Foreground: A moisture vaporatorA vast assortment of dev boards
The amount of hardware on hand was spectacular. Hackaday Prize sponsors Atmel, Freescale, Microchip, and TI all provided some hardware. Everything from ATMega328 boards from Atmel, TI Launchpads bristling with goodies like the Sharp Memory Display booster packs, Seeed Studio starter packs, to insanely powerful Freescale Freedom boards were available to build on at the event. The Sunday hackathon also had several gigantic boxes from Mouser filled to the brim with components and breadboards available to everyone to clobber into submission, letting their inner electronics geek shine. When taking a break from the build there was plenty to look at. People were showing off already completed projects they brought along with them. [Jeff] from Circuitry & Poetry was there with a bunch of circuit bent synths. A number of people were also finishing up the ESP8266 breakout boards that were presented the day before; some soldering and some laying out a PCB in Eagle. It was an incredible event, with dozens of groups going off to do their own thing, but still welcoming to anyone else who wanted to tinker. This type of community isn’t found everywhere and we’re thankful for the people that make Hackaday events like this one so special.
We need to take the time to give a big shoutout to SGVHAK. We honestly couldn’t have done this event without them. I’d personally like to thank [Michael Proctor-Smith] for bringing his amazing livestreaming box. He is the reason I am not currently (still) editing down seven hours of video from the PCB design workshop and the lightning talks. Big ups to [Lan], [Scoops] and everyone else who helped out. If you came to the Hackaday event, check out their meetups. If you’re in the area, we also have regular informal meetups somewhere around the hackerspace. Come on out!
![The display for [Steve]'s LIDAR](https://hackaday.com/wp-content/uploads/2015/05/lidar1.jpg)
