Showing posts with label electronics. Show all posts
Showing posts with label electronics. Show all posts

3D Printing Parts for Cryptocurrency Mining Rig

Cryptocurrency mining is booming again with Ethereum currently being one of the most mined coins. In many countries graphics cards (GPUs) used for the process are hard to find or are much more expensive. For mining purposes, several cards are mounted on a single motherboard with a riser connector and attached to an open external rig for more space to get better cooling air flow.
Most mining rigs are self-built by the operators who always want to get the best price to quality ratio.

Here are a few very practical 3D printable DIY modules you can make yourself and use in your setup.


Here is a somewhat typical mining rig but all the connections of metal profiles and structural elements (red and black plastic) were 3d printed:































Youmagine project page with all the instructions and files:

https://www.youmagine.com/designs/ether-open-air-rig


If you don't want to keep your GPUs on a riser connected to a rigid frame to get more space or flexible arrangements for better cooling, you can use DIY 3d printed card holders.































MMF project page wit all the files:

https://www.myminifactory.com/object/gpu-mining-rig-38870


Here is a different type of vertical GPU holder with focused ventilation opening:




























Thingiverse page:

https://www.thingiverse.com/thing:2409114


Using 3d printing to build your hashing beast is a great way to ensure spare and replacement parts and it gives you much more customization options. You can also get various type of fan holders, air flow focusers, PC component holders, and many other components.


If you found something useful in this post or on this blog please support my work with a small donation to any of the following addresses:  


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Thnx ;-)

If you want to start mining, but don't have the hardware, you can start cloud mining on Genesis for as low as 30USD for a two year period:

Genesis Mining


The latest fashion trend for all you 3d printing geeks

If you are into 3d printing then this is THE style of jacket you should wear!









































Detailed project description:

This jacket has 40 neopixels sewn to the back to display the status of the 40 3D Printers in Duke’s Innovation Co-Lab Studio. Each light corresponds to one printer and is either blue (in use), green (available), or red (offline) to show the real-time status of the printer. The printer status is retrieved via Duke’s Innovation Co-Lab’s 3D printer status API, documented here: http://apidocs.colab.duke.edu/.


Instructables page with all the steps and code:

https://www.instructables.com/id/3D-Printer-Status-Jacket/

THERO project

THERO is a privacy project developed by Román Torre and Ángeles Angulo, that uses a Raspberry Pi with TOR routing. By moving the front panel you change your connection to the external Internet and your privacy.
It uses 3d printing to make the full enclosure and mold for the concrete encased version.


Here are two videos showing how the project was developed:








Source:

http://3dadept.com/manage-your-online-privacy-with-thero-a-3d-printed-desktop-device/

Project homepage (in Spanish):

http://www.romantorre.net/portfolio-item/thero/



3D Printable Low Cost Servo Based RobotQuad

If you have some extra cheap servos and an Arduino you can use them to make this open source quadruped RobotQuad. It was developed by Regis Hsu and as open source project and its design is updated frequently. It should be a very affordable thing to build as all the servos needed will cost some 20 USD.
In the linked Instructable there are also possibilities to make a remote control unit and IR obstacle detection.

Here is the version 3.0 whit some dance music:




Detailed build instructions can be found at:

https://www.instructables.com/id/DIY-Spider-RobotQuad-robot-Quadruped/

https://www.thingiverse.com/thing:1009659


Hari Wiguna made a video about his build:





I really like the DIY aesthetics of this robot:


TriDInnov 3D Prints Electronic Components on Plastic Surfaces

Looks like TriDInnov from France has a working technology that prints conductive electronics on plastic surfaces. 






Technology description:
Startup company TriDInnov provides additive metallization for plastic and composite materials electronic packaging, is linked through a closed partnership with equipment manufacturer Kelenn Technology, launching the new Kelenn Technology DMD 100, an off-contact digital dispenser which deposits the TDI thick film formulation EOPROM (primer formulation for metallization process) showcasing their prototype circuits which have been manufactured with the DMD 100, depositing their EOPROM thick film formulation on molded device.
TriDInnov's technology brings to the electronic packaging market a new manufacturing process which repositions the MID towards new business areas such as to add value to composite materials especially in the automotive area. They are to invest in a technology platform in order to manufacture MID prototypes circuits for their customers in order to push their technology acceptance in the marketplace.

http://tridinnov.com/


How to reduce rattling noise on your 3d printer

Tech2C, an Aussi 3d printing youtube, made this video where he shows how to eliminate and reduce the noise, vibration or rattling for his 3d printer.

He uses a HyperCube 3D Printer but his guide is applicable for almost any machine. Used upgrades are rubber feet, foam insulation, stepper motor dampeners or shock absorbers and TMC 2100 stepper drivers with stealthChop mode.






There is a great comment thread under that video with many additional ideas.

Tech2C YouTube channel link:

https://www.youtube.com/channel/UC_scf0U4iSELX22nC60WDSg


Astrosyn shock absorber for NEMA17 used:


3D Printable DIY 600 Watt Halbach Array DC Motor

Christoph Laimer, well known for his 3d printable motor designs, developed a new and more powerful DC motor. It has 600 Watts of output power and performs with more than the 80% efficiency. The magnets of the rotor are arranged as a Halbach array and the motor runs with a standard ESC widely used in different RC applications (plane, drone, car etc.).

This project is a perfect example how you can use 3d printing for some ver powerful and practical printable objects. This is not just another fidget spinner, THIS ROCKS!!!


Presentation video:





Construction tutorial video:





Testing with the propeller attached:




Project homepage where you can buy the files for 10 USD (well worth when you see how effective this design is):

https://www.makesea.com/web/cla/~/50612/profile/-/asset_publisher/Rl6cqGtVw4Vb/content/660-watt-3d-printed-halbach-array-brushless-motor

Very detailed step-by-step Instructables page:

http://www.instructables.com/id/600-Watt-3d-printed-Halbach-Array-Brushless-DC-Ele/



DIY 3D Printed 30W Generator

Even Erichsen developed a 30W DIY electricity generator which you can 3d print name "The Beest". 
The Beest is powered up by hand (or other mechanica source) via the series of gears: ‘1:2 + 1:4 + 1:3, so one turn rotates the rotor 24 times. The rotor is set up like a 3 phase axial flux generator, with three stators and six rotor plates with a total of 96 neodymium magnets.
Very cool project, but full instructions are not released yet. If you have some knowledge of electric generators, you will be able to recreate this.

Here is the project description by the creator:
This is a working hand cranked power generator.
The rotor, in the picture, spins up to 1500 rpm, and produce about 30 watts.
I recommend building the rotor as seen in the fbx-file, for more power.
Needless to say – this is a huge print! Minimum 200+ hours....
On the hardware side you need 96 neodymium magnets (25mm diameter x 10mm),
about 1,3kg of enameled copper wire, preferably six steel plates, a pile of nuts & bolts, electronics - including an Arduino nano, display, bridge rectifier(s), diodes, capacitors, resistors, voltage regulators etc.
If you want to etch the PCB yourself, you will need a blank 160mm x 100mm copper board and your preferred chemicals.

Generator in action:




Thingiverse page with all the files:

http://www.thingiverse.com/thing:1119241

There is also a much simpler 15W version at: http://www.thingiverse.com/thing:145186

Project homepage:

http://www.justpressprint.no/3d-models/generator-v2/


Here is the Beest fully assembled:




3D Printed Parabolic WiFi Antenna for ESP8266

Brian Benchoff developed a 3d printable DIY parabolic reflector WiFi antenna for a very popular ESP8266 module.  The reflector is s a 19-inch diameter dish, with an F/D ratio of 0.5 and took some 10 hours to print. 
It is covered with thick adhesive backed aluminum foil. The real "duct tape".
It has a gain of some 16 to 17 dBi. 

Project description:
Recently, I was asked to come up with a futuristic, space-ey prop for an upcoming video for the 2017 Hackaday Prize. My custom-built, easily transportable parabolic antenna immediately sprang to mind. The idea of a three-meter diameter parabolic dish was rejected for something that isn't insane, but I did go so far as to do a few more calculations, open up a CAD program and start work on the actual design. As a test, I decided to 3D print a small model of this dish. In creating this model, I inadvertently created the perfect WiFi antenna for an ESP8266 module using nothing but 3D printed parts, a bit of epoxy, and duct tape.




Source article posted on Hackaday with in-depth description and the entire process documented:

http://hackaday.com/2017/01/30/increase-the-range-of-an-esp8266-with-duct-tape/

Here is the project page with all the files:

https://hackaday.io/project/18866-esp8266-parabolic-reflector


DIY Gauss Meter with 3D Printed Enclosure

Anthony aka. "Proto G" published this Instructable where he made a useful DIY Gauss meter which is controlled with Arduino Nano. 

Project description:
In this instructable, I will show you how to make a Gauss meter than can measure the strength of magnets so you can compare different magnets you have. It measures the magnets in units called Gauss and has a relatively linear range from 0-4000 Gauss. It will measure beyond that but the numbers beyond 4000 Gauss should only be used for comparison purposes. In addition to measuring the field strength, it also detects the polarity of the magnet and will show North or South, respectively. My favorite part about this design is the ON/OFF switch. It's hidden in the enclosure so the meter can only be turned on and off with a magnet. Since this unit is meant to measure magnets, you're sure to have one on hand. You can use the same latching magnetic switch I designed for many other things like a secret compartment lock. Here's a video showing the complete assembly:




You can see the full construction manual at:

http://www.instructables.com/id/Dual-Sensor-Gauss-Meter/



3D Printed Car Navigation based on Raspberry Pi

Greg Holloway made a car navigation system based on Raspberry Pi and 7 inch screen that is held by 3d printed dashboard structure. It was printed on E3D BigBox machine with the help of SpoolWorks scaffold soluble support material.
The car is Suzuki Jimny. Software used is open source Navit.































Detailed step-by-step construction guide can be found at:

http://www.instructables.com/id/3D-Printed-In-Dash-GPS-Navigation-Raspberry-Pi-3/

Thingiverse page for the files:

https://www.thingiverse.com/thing:1701583

Dtto 3D Printable Modular Open Sourced Transformer Robot

Dtto robot is just cool! See it here in the video presentation:





Project description:
The Dtto v1.0 Robot is a modular transformable robot designed to be versatile, flexible and self-reconfigurable. The idea of modular robots is that they can adopt any shape they want, by changing the position and the connection of their modules.

This robot is aimed for research on modular self-reconfigurable robots and educational purposes. It is designed to allow multiple modules to communicate, mechanically connect and disconnect and to work collaboratively in the locomotion, self-reconfigurability and efficient movement.

The versatility of the robot will allow it, in the future, to be able to perform rescue operations, exploration of unknown environments and space exploration.

In future works, the modules will have built in camera, ultra-sound sensor, gyroscope, accelerometer, magnetometer… The possibilities are endless.

Dtto key features:
  • Small and self-contained robot
  • Fully 3D printable
  • Self-reconfiguration capabilities
  • Bluetooth + Radio communication
  • Multiple locomotion modes (snake, wheel, walker...)
  • Rechargable batteries
  • Simulation model validated
  • Cheap modules (<55 USD)
  • Open Source Hardware and Software
  • FIRST OPEN-SOURCE SELF-RECONFIGURABLE MODULAR ROBOT!

Dtto is made from modules:




























Hackaday project homepage:

https://hackaday.io/project/9976-dtto-explorer-modular-robot

Dtto GitHub:

https://github.com/otrebla333/Dtto-Modular-Robot


Dtto was inspired by high-end MTRAN3 robot system:

Make your own 3D printable handheld tractor beam emitter

Asier Marzo, a researcher at Bristol University, made this amazing project where you can make your own DIY handheld tractor beam. Currently it holds only small objects like liquid droplets or small insects.
It is Arduino controlled, cheap to make and uses ultrasonic sound emitters to produce the tractor field. You can make it for some 70 USD and with basic electronics skills. Ideal educational or school science project.


Here is a video of the device in action with some construction instructions:






It is like simplified home made sonic screwdriver from Doctor Who :-) Here you can see a small red liquid droplet floating in 3d printed sphere that holds ultrasonic transducers.























Step-by-step build guide with all the files and the code:

http://www.instructables.com/id/Acoustic-Tractor-Beam/

Detailed research paper with the science behind it and device design:

http://aip.scitation.org/doi/full/10.1063/1.4972407


You can also find different type of the same device developed by the same author. It is a horizontal 3d printedplate array of ultrasonic emitters that make small objects levitate.



Advanced 3D Printing with Wire Deposition for Electrics Projects

Disney researchers developed a 5 axis 3d printer that can also lay metal wire for electric and electronic devices. Wires can be fixated by extruding plastics on it. Since it moves in 5 axis, it can make overlapping wire coils and other intricate geometry objects. 




































Project description by Huaishu Peng:
We introduce a new form of low-cost 3D printer to print interactive electromechanical objects with wound in place coils. At the heart of this printer is a mechanism for depositing wire within a five degree of freedom (5DOF) fused deposition modeling (FDM) 3D printer. Copper wire can be used with this mechanism to form coils which induce magnetic fields as a current is passed through them. Soft iron wire can additionally be used to form components with high magnetic permeability which are thus able to shape and direct these magnetic fields to where they are needed. When fabricated with structural plastic elements, this allows simple but complete custom electromagnetic devices to be 3D printed. As examples, we demonstrate the fabrication of a solenoid actuator for the arm of a Lucky Cat figurine, a 6-pole motor stepper stator, a reluctance motor rotor and a Ferrofluid display. In addition, we show how printed coils which generate small currents in response to user actions can be used as input sensors in interactive devices.

You can see it in action here:




project homepage with more information:

http://www.huaishu.me/projects/electromagnet.html


While this project looks interesting, wire deposition with 3d printer head is not new in DIY world. Spoolhead was a RepRap project in early 2010 that did something simillar.




SpoolHead homepage:

http://reprap.org/wiki/SpoolHead

Switcher DIY Power Modules For Smart Home Projects

Hristo Borisov developed and published a set of 3D printable socket and switch modules that are controlled by ESP8266.
ESP8266 is very interesting piece of electronics since it is very small, affordable (some 4 USD) and powerful since it has WiFi and can be used as Arduino.
With this project you can control your electric devices via WiFi remotely and setup a simple DIY smart home project for a fraction of a price of commercial proprietary solutions.

Sockets are fully 3D printable and are of standard European "Schuko" type, designed in Autodesk Fusion 360. Design is modular so you could probably easily change it to any other socket standard.

There is even an iOS app for remote control of modules. Project is also open source so they get extra pints in my book.


















Project homepage with all the code and instructions:

http://hristoborisov.com/index.php/projects/switcher-a-wifi-open-source-power-switch/

GitHub repository with all the code and STLs:

https://github.com/hborisov/switcher_box

Stay safe when working with home electric power systems :-)

Update:

looks like there is a simillar commercial system that is also very affordable, but it is not open sourced:

https://www.itead.cc/sonoff-wifi-wireless-switch.html

It may be possible to flash it with custom firmware but it doesn't have a socket but the wires should be connected to it.

Laser-assisted Advanced 3D Printing with Silver Ink

Researchers at Harvard’s Wyss Institute for Biologically Inspired Engineering and the John A. Paulson School of Engineering and Applied Sciences (SEAS) developed a new 3D printing method.

They use a miniature nozzle to spray silver ink that is solidified by lasers in midair to produce self-supporting 3D structures.

The application of this technology will probably be in advanced electronics circuits production or biomedical devices.




























Here is the video of the process:



Source and more information:

http://www.pnas.org/content/suppl/2016/05/11/1525131113.DCSupplemental

http://www.pnas.org/content/113/22/6137.abstract

http://www.pnas.org/content/suppl/2016/05/11/1525131113.DCSupplemental/pnas.201525131SI.pdf

3D Printed DIY Battery Packs from Old Laptop Batteries

I found two old discarded batteries from HP and Lenovo laptops I owned which did not hold the charge and I was wandering what to do with them. I googled and found that they may actually hold 18650 battery cells that are still in working order. If the internal battery management system detects that even one of usually six cells is not in line with working parameters it will probably shut down the entire battery.

"Dead" laptop batteries. Used force and screwdriver to open them. Watch your fingers, you will need them trough entire life. You can see the 18650 LiPo modules in blue and green.

































I discovered that there a hundreds of projects using the same refurbished module ranging from simple cell phone power packs to large solar system batteries.

Here is a tutorial on how to make a replacement hand drill battery pack with 3d printer and 18650 modules from http://www.thingiverse.com/thing:1042761:



Here is a tutorial on how to create a larger battery pack with 3d printed frame modules for storage of solar power that can be used in small electric vehicles:




Thingiverse page:

http://www.thingiverse.com/thing:1320696

There is large number of 3d printed projects with 18650 battery modules:

http://www.thingiverse.com/tag:18650/page:1

Also take a look at: http://www.instructables.com/howto/18650/

Do keep in mind that you will have to test each module and that there will be some that are just dead and can not be used.

Since you can make battery of any size, you can literally make a Tesla powerwall equivalent for a fraction of the originals 3500+ USD price. This guy made a DIY Tesla powerwall for some 300 USD:





Think about it: a battery for your entire house for just 300 USD made from junk old laptop batteries. You will probably have many many questions so I strongly recommend checking the entire content on Jehu Garcia YT channel. This guy is a battery guru!

Soon I'm going to visit our regional electronic waste processing company in town of Slavonski Brod to see if they can give me more old laptop batteries to salvage the 18650 modules.

Do you have any experiences with 18650 batteries or any projects you made? Let me know in the comments!

3D Printable 3D Drawing Stylus for Motion Tracking Systems

EpicJefferson published a full tutorial on how to make Arduino based 3d drawing pen with 3d printed enclosure. It can sedn data to other software like Processing and uses an external motion tracking system (like Optitrack in the video)




Full build guide and all the files can be found at:

http://www.instructables.com/id/Wireless-3D-Drawing-Stylus/?ALLSTEPS

Here you can clearly see the internal electronics, battery and 3d printed shell with motion tracking points on the cap.




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