Archivi tag: 3dprint

Flying Sea Turtle

Flying Sea Turtle
By amaochan

When the film spreads through the webs, it shows that a plastic straw pulled out from the poor turtle’s nostrils, which used its misfortune to slightly change the world.

Many people have begun to take the initiative about stop using the plastic straws, and some chain restaurants have no longer offer the plastic straws to their customers. As the matter of fact, it is not just straws that would harm the turtles in the ocean! Marine debris, plastic bags, fishing hooks, abandoned fishing nets, etc. also lead turtles to death. The rapid development of science and technology have created many substances that should not exist in our nature; Unfortunately, most species are not evolving fast enough to catch up with us. These sea turtles are typical examples. They don’t have enough ability to distinguish the jellyfish they love from those plastic bags that might kill them, therefore, It’s much more important that we should think about our nature when we’re trying to get anything further progressed.

I’ve seen turtles swimming below me when snorkeling.
The slow waving movement of their forelimbs looked like that they were flying under the sea, which provided the inspiration [flying sea turtle]. I took my previous origami turtle creation as a prototype, by adding more details, and used the movable mechanism to imitate the body undulating, even the relative movement of the neck and body of the sea turtle
under reaction force. It is my goal to reproduce the turtle swimming gracefully under the sea! After a few weeks of hard work, I completed [flying sea turtle] automata! And I love it a lot! The design process and the final completed work bring me a lot of fun and achievements. Sincerely, I hope everyone can be delighted during the assembling.

Thanks to SpiderMaker for sponsoring the creation of this work.
Material used SpiderMaker PLA
Matte Iron blue/Matte Clay/Matte Orchid Purple/Matte Brick Red/Matte Kraft Brown

Print suggestions
Layer height 0.2mm



感謝 SpiderMaker 織造者 贊助本作品之創作
使用材料 SpiderMaker PLA

July 20, 2019 at 04:47AM
via Thingiverse – Popular Things


Player Character Pack 03

Player Character Pack 03
By Valandar

My third pack of player character figs, including a few races rarely seen and posted! Even if these figures don’t match any character you play, they might give you inspiration for your NEXT characters!

July 16, 2019 at 02:15PM
via Thingiverse – Popular Things

Schaf-Toilettenrollenhalter / Sheep toilet roll holder

Schaf-Toilettenrollenhalter / Sheep toilet roll holder
By Hiob

Eine lustige Möglichkeit auf der Toilette etwas für Ordnung zu sorgen und gleichzeitig einen Eye-catcher zu haben…

Viel Spaß auf dem Klo… ๐Ÿ™‚

A funy way to keep things tidy in the toilet and have an eye-catcher at the same time…

Have fun on the toilet… ๐Ÿ™‚

Update 22. Jun 2019:
I have made an adjustment to the head of the sheep to make the attachment of the other parts more stable.

Happy printing ๐Ÿ™‚

Shaun the Sheep says hello ๐Ÿ˜‰

Update 29. Jun 2019:
For smaller printers the files small_printer_1 and small_printer_2 were added! Print and glue together! For the other side simply mirror the print object in the slicer.

June 21, 2019 at 06:38PM
via Thingiverse – Popular Things

Hardware Notifications For ISS Flybys

Hardware Notifications For ISS Flybys
By Bryan Cockfield

Since Sputnik launched in the 1950s, it’s been possible to look outside at night and spot artificial satellites orbiting with the naked eye. While Sputnik isn’t up there anymore, a larger, more modern satellite is readily located: the International Space Station. In fact, NASA has a program which will alert anyone who signs up when the ISS is about to fly overhead. A better alert, though, is this ISS notifier which is a dedicated piece of hardware that guarantees you won’t miss the next flyby.

This notifier is built around the Tokymaker, a platform aimed at making electronics projects almost painfully easy to learn. Connections to various modules can be made without soldering, and programming is done via a graphical interface reminiscent of Scratch. Using these tools, [jaime_lc98] designed a tool which flips up a tiny paper astronaut whenever the ISS is nearby. The software side takes advantage of IFTTT to easily and reliably control the servo on the Tokymaker.

The project pages goes into detail about how to set up IFTTT and also how to use the block-style language to program the Tokymaker. It’s pretty straightforward to get it up and running, and relatively inexpensive as well, and might be a great way to get the younger folks excited about space while also teaching them about programming. It might also be a good stepping stone on the way to other ISS-related hacks.

July 17, 2019 at 07:00AM
via Blog โ€“ Hackaday

Neural Network In Glass Requires No Power, Recognizes Numbers

Neural Network In Glass Requires No Power, Recognizes Numbers
By Al Williams

We’ve all come to terms with a neural network doing jobs such as handwriting recognition. The basics have been in place for years and the recent increase in computing power and parallel processing has made it a very practical technology. However, at the core level it is still a digital computer moving bits around just like any other program. That isn’t the case with a new neural network fielded by researchers from the University of Wisconsin, MIT, and Columbia. This panel of special glass requires no electrical power, and is able to recognize gray-scale handwritten numbers.

The glass contains precisely controlled inclusions such as air holes or an impurity such as graphene or other material. When light strikes the glass, complex wave patterns occur and light becomes more intense in one of the ten areas on the glass. Each of those areas corresponds to a digit. For example, here are two examples of the pattern of light recognizing a two on the glass:

With a training set of 5,000 images, the network was able to correctly identify 79% of 1,000 input images. The team thinks they could do better if they allowed looser constraints on the glass manufacturing. They started with very strict design rules to assist in getting a working device, but they will evaluate ways to improve recognition percentage without making it too difficult to produce. The team also has plans to create a network in 3D, as well.

If you want to learn more about traditional neural networks, we have seen plenty of starter projects. If TensorFlow is too much to swallow, try these 200 lines of C code.

July 17, 2019 at 04:00AM
via Blog โ€“ Hackaday

Hacking This Smart Bulb Is Almost Too Easy

Hacking This Smart Bulb Is Almost Too Easy
By Tom Nardi

The regular Hackaday reader no longer needs to be reminded about how popular the ESP8266 is; they see the evidence of that several times a day. But what might not be quite so obvious is that it isn’t just us hacker types that are in love with the inexpensive IoT microcontroller, it’s also popping up more and more frequently in commercial products.

As [Majenko] demonstrates, one of those ESP-powered devices is the LOHAS Smart LED Bulb. Upon cracking one open, he found that these relatively low-cost bulbs are little more than a standard ESP8266 chip and a couple of LED drivers. He wanted to see how hard it would be to get his own code running on the bulb, and by the looks of it, it took longer to get the thing open then it did to load it up with a custom firmware.

The bulb’s PCB features the aforementioned ESP8266, a 1MB 25Q80 flash chip, and MY9231 LED drivers. Whoever put the board together was nice enough to label the RX, TX, and GPIO test points, though [Majenko] notes that what’s labeled as 3.3 V appears dead. With a ESP-01 programmer wired up to the board and the appropriate board settings (which he provides), you can use the Arduino IDE to upload whatever you like to it.

Running “Hello World” on a smart bulb is fun and all, but what about kicking on those LEDs? [Majenko] found a library that works with the MY9231 drivers, and it didn’t take long to figure out which of the ESP’s pins were used to communicate with them. All in all, he said it was far easier than he expected.

You’ll probably want to put this bulb back into service after reprogramming, so [Majenko] advises caution when cracking open the shell. There are clips holding on the diffuser which he assures us are going to break no matter what you do, plus some silicone adhesive. He suggests super glue to hold it together when you’re done programming it, and using an OTA firmware so you don’t need to get back in there.

In the past we’ve shown how some hackers are rolling their own smart bulb hardware, but with cheap commercial offerings that are so easily hackable, it frankly doesn’t seem worth the effort. On the other hand, an influx of cheap ESP-powered bulbs isn’t all good news.

July 17, 2019 at 01:00AM
via Blog โ€“ Hackaday

Jigsaw Motor Uses PCB Coils For Radial Flux

Jigsaw Motor Uses PCB Coils For Radial Flux
By Dan Maloney

Electric motors are easy to make; remember those experiments with wire-wrapped nails? But what’s easy to make is often hard to engineer, and making a motor that’s small, light, and powerful can be difficult. [Carl Bugeja] however is not one to back down from a challenge, and his tiny “jigsaw” PCB motor is the latest result of his motor-building experiments.

We’re used to seeing brushless PCB motors from [Carl], but mainly of the axial-flux variety, wherein the stator coils are arranged so their magnetic lines of force are parallel to the motor’s shaft – his tiny PCB motors are a great example of this geometry. While those can be completely printed, they’re far from optimal. So, [Carl] started looking at ways to make a radial-flux PCB motor. His design has six six-layer PCB coils soldered perpendicular to a hexagonal end plate. The end plate has traces to connect the coils in a star configuration, and together with a matching top plate, they provide support for tiny bearings. The rotor meanwhile is a 3D-printed cube with press-fit neodymium magnets. Check out the build in the video below.

Connected to an ESC, the motor works decently, but not spectacularly. [Carl] admits that more tweaking is in order, and we have little doubt he’ll keep optimizing the design. We like the look of this, and we’re keen to see it improved.

July 16, 2019 at 10:00PM
via Blog โ€“ Hackaday