Category Archives: DIY

[Festo’s] Underwater Robot Uses Body-Length Fins

[Festo] have come up with yet another amazing robot, a swimming one this time with an elegant propulsion mechanism. They call it the BionicFinWave. Two fins on either side almost a body-length long create a wave which pushes water backward, making the robot move forward. It’s modeled after such fish as the cuttlefish and the Nile perch.

The BionicFinWave's fin mechanismWhat was their elegant solution for making the find undulate? Nine lever arms are attached to each fin. Those lever arms are controlled by two crankshafts which extend from the front of the body to the rear, one for each side. A servo motor then turns each crankshaft. Since the crankshafts are independent, that means each fin operates independently. This allows for turning by having one fin move faster than the other. A third motor in the head flexes the body, causing the robot to swim up or down.

There’s also a pressure sensor and an ultrasonic sensor in the head for depth control and avoiding objects and walls. While these allow it to swim autonomously in its acrylic, tubular track, there is wireless communication for recording sensor data. Watch it in the video below as it effortlessly swims around its track.

[Festo] has created a lot of these marvels over the years. We’ve previously covered their bionic hopping kangaroo (we kid you not), their robot ants with circuitry printed on their exoskeleton, and perhaps the most realistic flapping robotic bird ever made.

from Blog – Hackaday https://ift.tt/2K0jnsD
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Harmony Valley- Rainbow of Peace & Trees of Friendship Utilizes Conductive Fabric to Activate the Installation #piday #raspberrypi @Raspberry_Pi


From Vivid Sydney:

The installation is comprised of a set of large inflatable sculptures that reference Japanese ‘kawaii’ culture where the use of exaggerated cute aesthetics elicits and heightens emotions of nurture, playfulness and vulnerability.

The elements of the work include an inflatable ‘rainbow of peace’ as well as inflatable ‘trees of friendship’ each adorned with inviting faces and bright colours. A soundscape has also been composed to reflect the lively nature and personality of this endearing group.

Read more and see more on vimeo


3055 06Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!


via Adafruit

Bucket Opener #3DPrinting #3DThursday


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BenjiOng shared this project on Thingiverse!

Bucket Opener for 5 gallon buckets

See more!


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Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!


via Adafruit

Computers Go Hollywood

Have you ever been watching a TV show or a movie and spotted a familiar computer? [James Carter] did and he created a website to help you identify which old computers appear in TV shows and movies. We came across this when researching another post about an old computer and wondered if it was any old movies. It wasn’t.

You can search by computer or by title. There are also ratings about how visible, realistic, and important the computer is for each item. The database only contains fictional works, not commercials or documentaries. The oldest entry we could find was 1950’s Destination Moon which starred a GE Differential Analyzer. Well, also John Archer, we suppose. We assume GE had a good agent as the same computer showed up in Earth vs. the Flying Saucers (1956) and When Worlds Collide (1951). You can see a clip of the computer’s appearance in Earth vs. the Flying Saucers, below.

We got excited when we didn’t see the Altair 8800 listed with The Six Million Dollar Man. But, alas, [James] has a list of things he hasn’t got around to yet and it is on that list. It is hard to tell which computer has the most screen credits, although we were amused to see how often the Burroughs B205 turned up, including in the Batcave.

We often spot some piece of gear other than a computer on the air, but we haven’t found a reference website for that. The old Battlestar Galactica had a fortune in Tektronix test equipment aboard. If you remember the show Buck Rogers in the 25th Century, Dr. Huer had an autoclave on his desk that one of the Hackday crew had in his lab at the same time.

We keep waiting for Mr. Robot to open up Hackaday on his tablet, but so far no joy. Of course, how computers are used on the screen can range from accurate to ridiculous. If you want to know which is which, it seems everyone has an opinion.

from Blog – Hackaday https://ift.tt/2tjpduZ
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Geometric Concrete Pot Mold #3DThursday #3DPrinting


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Shared by esparapse on Thingiverse:

This is a simple project that i made. With 3 parts of PLA you can create this amazing geometric planter or pot for many uses. Just Print 2 (mirroring) sides and the internal piece and assemble it. Once you have it mix some concrete and trow it from the bottom. Dissamble one day after and sand it for achieve a good finish. Enjoy!

Download the files and learn more


649-1
Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

The Adafruit Learning System has dozens of great tools to get you well on your way to creating incredible works of engineering, interactive art, and design with your 3D printer! If you’ve made a cool project that combines 3D printing and electronics, be sure to let us know, and we’ll feature it here!


via Adafruit

Pi Zero Case Vented and Hinged Remix for adding OLED #3DPrinting #3DThursday


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GeoDave shared this project on Thingiverse!

I made the https://learn.adafruit.com/pi-hole-ad-blocker-with-pi-zero-w/project-parts project & wanted a case with just the OLED showing on top.

After looking at different case ideas, I liked this hinged case for Pi Zero https://www.thingiverse.com/thing:1954625 . I recreated the design in openscad to make it easier for me to change some things.

See more!


649-1
Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!


via Adafruit

LIVE NOW! Meet Digi-Key in the Adafruit Discord server 8pm ET 6/21/18 (video) #askdigikey #makewithdigikey #digikeydiscord @digikey



Meet Digi-Key in the Adafruit Discord server (video).

For the month of June, hang out with Digi-Key in the Adafruit Discord server! (http://adafru.it/digikeydiscord) Digi-Key, Adafruit, and the maker/pro-engineer community will come together to discuss: electronics, Digi-Key & Adafruit history, and more!

Tune in June 21st at 8:00 PM EDT for “Meet Digi-Key”. A few of our friends from the Digi-Key staff will be there to introduce themselves and tell you about their company and how Digi-Key fits into the maker ecosystem and community.

We’re huge fans of Digi-Key at Adafruit (we buy stuff from them all the time & they’re one of the top Adafruit distributors). In addition to great discussions, they’ll be running promotions, giveaways and more, so please tune in!

If you miss the first event, don’t worry! We’ll be having Digi-Key back for more events the rest of the month:

Thursdays at 8PM EDT:

June 21st – TONIGHT!
June 28th
July 12th

The channel will be open all month and we want to hear from you. Please come with questions, comments, or just to say hi! See you there!

http://adafru.it/digikeydiscord


via Adafruit