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Tribed Print Bed Autocalibration

Jeremie Francois developed his own method of automatic print bed leveling and calibration by using some force sensors, Arduino to communicate with modified Marlin firmware and three Z-axis lead screws.

Here are videos of his set-up in action:

Project homepage with detailed guide:

http://www.tridimake.com/2015/12/tribed-fully-automatic-bed-leveling-and-z-offset-adjustment.html

The project is still in development and further improvements are expected.

Source:

http://hackaday.com/2016/01/31/tribed-3d-printer-configuration-doesnt-ever-need-to-be-leveled/

FSR sensor on the bottom plate next to a Z screw

You can learn more about Force Sensing Resistors here:

https://en.wikipedia.org/wiki/Force-sensing_resistor

SparkRover Open Source 3D Printable Robotic Rover

SparkRover is an open source rover powered with Arduino with Bluetooth connectivity so it can be controlled with a smartphone. Its structure and wheels are 3d printed.
It was developed by Instructables user Dominick Lee who described the main areas where this small rover can be used:

Robotics Learning Platform
GoPro Automatic Camera Dolly
Panorama Camera Assistant
Maze Solving Robot
Robot Racing

SparkRover parts list:

3D Printed Parts (1x - SparkRover Chasis, 1x - Cover for the Chasis, 2x - Front Wheel, 2x - Back Wheel)
2x of 55mm O-Rings
2x of Futaba S3003 Servo pack (contains a servo, servo horns, screws, etc.)
HC05 Bluetooth module
Arduino Nano v3
26 AWG stranded wire (or jumper wires)
Push button latch switch
Small 3.7v LiPo battery
3.7v to 5v Step-Up chip
Ultrasonic sensor

Detailed construction guide, .stl files and guidance software can be found at:

http://www.instructables.com/id/SparkRover-3D-Printed-Smartphone-Controlled-Robot/?ALLSTEPS

Zowi Open Source 3D Printed Robot

Zowi is an open source robot developed by Javier Isabel. It is small, simple and cheap to make so it's ideal for education. Since it uses an Arduino or a simillar controller it is very hackable and programmable.

It uses the following vitamins:

4 Futaba 3003 servos or compatibles
6 M3x10 Bolts (ISO 4762)
2 M3x10 Bolts (ISO 10642)
8 M3x12 Bolts (ISO 4762)
8 M3x16 Bolts (ISO 4762)
22 M3 nuts (ISO 4032)
1 BQ ZUM BT328 or Arduino
4 x 2 AAA Battery holder
8 AAA bateries

All the files and instructions to make it can be found at:

https://github.com/bqlabs/zowi

Different modifications and designs submitted by the community can be found at:

https://github.com/bqlabs/zowi/tree/master/mods/

One of the visually more interesting modifications developed by the community

Zowi is further development of BOB robot.

Ardumower Arduino Controlled 3D Printable Lawn Mover

Andreas Haeuser developed a 3d printable lawn mover. It is controlled by Arduino and looks easy to build on any FDM machine with some electronics knowledge.

Tech specs from the project page:

The 3d printed ardumower works on the same principle as its commercial counterparts, which can be bought for a lot of money at most hardware stores. It drives in the inner space of a “boundary wire fence” (BWF). If it comes close to this it stops, turns and then it goes on mowing your lawn continuously. The ardumower is well tested for a lawn size up to 500m². If your lawn is bigger you need a second battery or you should print a second ardumower.

In addition to a 3D printer and the needed filament (ABS and PLA) for printing the parts, only a few tools and resources are needed to build the chassis. These are mainly common hobbyist tools. You do not need a lathe or a milling machine. Every common 3d printer with a build volume of minimum 180mm x 180mm x 60mm (x,y,z) is suitable.

The ardumower is driven by two 12V geared motors. The cutting device is made from a 12V DC-motor and a cutter disc with a diameter of 220mm. The power comes from rechargeable 12V NiMH or 11,1V LiPo batteries.

You can get all the details and purchase the construction manual with all the files for 9,99 euro:

http://www.reprap-windturbine.com/index.php?id=20&L=1

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.

ESP8266 Controlled Kame 3D Printed Quadruped Robot

Kame is an open source small four-legged robot which is controlled by ESP8266 WiFi module. It has 8 servos with two motors per leg and a small LiPo battery. ESP8266 module is very cheap and this project could be ideal for a educational setting and various experiments.

Kame can walk:

Kame can jump:

Kame Thingiverse page with all the files:

https://www.thingiverse.com/thing:1265766

Full FreeCAD files and code is also available at:

https://github.com/bqlabs/miniKame

Multistruder DIY Filament Extruder

Multistruder is a new Arduino controlled filament extruder that can enable you to make your filament directly from the pellets.

KS video:

Project description from the project page:

How is the Multistruder Different From Other Filament Extruders:

The Multistruder is designed to do be a multi purpose plastic extrusion tool. In other words it is designed to do more than just make filament. This is done by swapping out modular parts on the extruder (ex: Injection Molder (hint hint)). More details coming soon.
Open source and easily modable Arduino microcontroller "brain" making it very user friendly to control and configure and the ability to add various expansion modules to give you better extrusion performance.
Only need to interact with the Arduino brain. Then the Arduino sends those instructions to everything else.
TFT Full Color Touchscreen is included standard for easy realtime feedback and complete user friendly control of your extruder (Almost like using a phone)
All Metal Construction making for a durable extruder allowing for a long service life and less issues in the long run while still allowing ease of modability for the user.
Drive Motor Control allowing for precise control of extrusion speed.
Expansion Module support for spoolers, diameter control, etc. Whether you make your own or you buy them.
Multiple vertical mounting options.
The Multistruder comes 95% ready to go (as well as tested) out of the box all you have to do is install it in your work space, add plastic then your ready to extrude filament.
Vertical Space Saving design: estimated to take up about 15" H x 15" L 6" W
SOMETHING IS REQUIRED TO MEASURE DIAMETER OF FILAMENT EX. CALIPERS.

Specs Of Prototype ( Production version > Prototype version):

Extrusion Speed: <~3 feet per minute (extrusion speed will be tuned by controller to get filament diameter consistency).
1 Kg Spool: <~ 8 Hours
RPM: ~10 RPM
Torque: ~167 kg.cm
1.75mm extrusion cap (you can ask for 1.75mm or 3.00mm)
110 Watt Heater + 5 Watt Controller + 24 Watt Motor = so max = ~139 Watts. True wattage is alot less than 139 around 84 as the heater band is not always on
~2 Cents/hour operating cost at 15 Cents/kWh
Extrusion Temp: up to ~400C

Here is a Multistruder development blog:

http://www.thegreenengineers.com/index.php?/blogs/blog/1-multistruder-dev-blog/

They had a successful KS campaign:

https://www.kickstarter.com/projects/1718006136/multistruder-filament-extruder/description

Laser Engraver from Discarded DVD Drives with 3D printed Frame

If you have few old DVD drives and an Arduino Uno you can make a simple laser engraver for some 15 USD. The supporting frame can be 3d printed or made from any material you can hack.

Here is the video of the same design with standard frame:

All files can be found at:

http://www.thingiverse.com/thing:375828

Detailed instructions are at:

http://www.instructables.com/id/Pocket-laser-engraver/?ALLSTEPS

3D Printable Transformable Spider Robot

Someone on Instructables posted a full tutorial and files for nice Arduino controlled little transforming spider robot. It walks on its "legs" and drives on the wheels. Cool!

Spiderbot in action:

Detailed construction guide can be found at:

http://www.instructables.com/id/3D-printed-Transformers-Robot-Spiderbot/

Anatomy of the spider transformer:

Hacking and Upgrading Cheap Chinese 3020 and 3040 CNCs

I plan to buy a cheap or even second-hand Chinese 3020 or 3040 CNC mill so I looked around to find a way to improve it with parts I already have like Arduino or some simple electronic upgrades. I found two interesting guides:

Upgrading 3020 (and other models) with Arduino, GRBL and CNC Shield V3

Detailed guide by EricAusome can be found at:

http://www.instructables.com/id/3020-CNC-Arduino-GRBL-CNC-Shield-V3/?ALLSTEPS

John Lauer hacked his 3040 to run with ChiliPeppr and TinyG.

Source: http://hackaday.com/2015/09/08/how-to-upgrade-a-chinese-cnc-machine/

This post will serve as my knowledge base and will be expanded as I gather more CNC hacks.

Learn Marlin 3d printer firmware and become advanced user with tutorials by Thomas Sanladerer

Become Marlin expert with excellent tutorials by Thomas Sanladerer. Thomas is well known 3d printing vlogger and his channel is well worth following. It has some great content including testing, guides, how to-s and reviews.

Here is part 1 with introduction and basic concepts such as installing, hardware and firmware:

Here is part 2 where you will become power user and Marlin guru, it covers:

Power-user tips
Advanced options in Configuration.h
Even more advanced things in Configuration_adv.h
Bending the electronics to your will with pins.h
Using custom temperature sensors with thermistortables.h

great work, thank you Thomas!

Materia 101 3d printer is open source child of Arduino and Sharebot

Arduino and Sharebot, both based in Italy, partnered up to develop and deliver new open source printer: the Materia 101. Arudino is a major major player in open source hardware community and their name on a 3d machine will draw some major attention.

Printing technology: Fused Filament Fabrication
Printing area: 140 x 100 x 100 mm +/- 5mm
X and Y theorical resolution position: 0,06 mm
Z resolution: 0.0025 mm
Extrusion diameter: 0.35 mm
Filament diameter: 1.75 mm
Optimal temperatures with PLA: 200-230°
Tested and supported filaments: PLA
Unsupported but tested filaments: Cristal Flex, PLA Thermosense, Thermoplastic Polyuretane
(TPU), PET, PLA Sand, PLA Flex
External dimensions: 310 x 330 x 350 mm
Weight: 10 kg
Usage: 65 watt
Electronical board: Official Arduino Mega 2560 with Open Source Marlin Firmware
LCD display 20 x 4 with encoder menu
Preloaded with PLA printing presets
Extruder block with filament pressure regulation
Price: under 600 euros ($755) in kit form, and under 700 euros ($883) assembled.

I don't understand why is the print volume so small? Why?

Materia 101 on official Arduino blog: http://blog.arduino.cc/2014/09/30/arduino-materia-101/

Here is video of it in Italian:

Kerbal Space Program DIY 3d printed game controller based on Apollo guidance computer

Reddit user KK4TEE made this awesome must-have 3d printed game accessory if you are Kerbal Space Program fan. It is a custom designed game controller that lets you read flight data and pilot your in-game spaceship. The device is powered by Arduino and communicates with Telemachus module inside the game. The design is based on original DSKY Apollo guidance computer.
I tried playing Kerbal Space Program some time ago and loved it but I lack time and concentration so I left it ... maybe sometimes in the future I'll have all the time I need ...

Great work KK4TEE!

Reddit thread about enclosure build:

http://www.reddit.com/r/KerbalSpaceProgram/comments/2gnxrb/3d_printed_dsky_i_made_for_ksp/

and here is a thread about construction of electronics board:

http://www.reddit.com/r/KerbalSpaceProgram/comments/1s1hn6/my_custom_ksp_control_board/

All the files needed for 3d printing the enclosure:

https://github.com/KK4TEE/3DSKY

All the code and instructions needed for Arduino to communicate with Telemachus module inside Kerbal Space Program:

https://github.com/KK4TEE/Control-Panel

All images from the project:

Arduino controlled pen plotter attachment for your 3d printer

James Sesler posted this video featuring Arduino controlled pen plotter attachment for your 3d printer. I hope he release more information soon and makes the plotter design and code publicly available. Kudos James!

There are many pen plotter attachment projects on Thingiverse:

http://www.thingiverse.com/search/page:1?q=pen+plotter&sa=

This will probably be one of my future projects. Can you guys recommend some more resources on how to make everything work base don real experience?

Developing a DIY metal detector with 3d printed parts

If you want to detect metal underground and you have a 3d printer, Arduino, some wire and PVC pipes, you can start to build this DIY contraption.

There are links to several how-to guides in this post based both on Arduino and Intel Galileo controller. You can use 3d printed and parts cut from plywood.

All the files needed for the detector coil and other parts: http://www.thingiverse.com/thing:416163

Here is the projects homepage: https://solar1.net/drupal/metal_detector

He uses this metal detector project as the basis: http://dzlsevilgeniuslair.blogspot.dk/2013/07/diy-arduino-based-metal-detector.html

3d printed metal detector coil

Owning a metal detector is not prohibited in my country (Croatia) but using it to find anything of historical values could be heavily punished. I'll need to think if I will make this detector. Maybe in the future.

Update:

I found another 3d printed DIY metal detector project developed by Paulo Bubolz from Brazil. It is controlled by Raspberry Pi. Files for it are not released yet ...

Update 2:

Here is a plywood frame and Intel Galileo based DIY metal detector with LED strip indicator. Very detailed guide is available at:

http://www.instructables.com/id/Metal-Detector-2/

Tony created this very cheap piece of DIY wearable eyespace technology. It is foldable wearable display that connects via Bluetooth with your Android or computer.

Everything displayed on this head mounted display is controlled by either an Android phone or a Bluetooth connection to a desktop. Using relatively simple display and simple Arduino means it is limited to text and very simple graphics, but this is more than enough for some useful applications like reading SMS messages and checking email.

From project description:

The OLED display is a small .96" display controlled by an arduino nano board. The display receives text and commands from a HC-05 serial Bluetooth module connected to the arduino. There is also a small speaker and RGB LED connected to the board. The OLED display, RGB LED, and speaker are all controllable over Bluetooth.

The device is powered by an Adafruit powerboost module connected to a small 0.7Wh lipo battery. The optics are a small mirrored right angle prism and a magnifying lense. The frame and casing is all 3D printed with ABS using a Solidoodle 2 pro printer.

The Arduino communicates with the OLED display using i2c (inter-integrated circuit). The RGB LED and the speaker use the arduino's digital output pins. The display is controlled over blue tooth using a application running on an Android phone or Linux terminal. The glasses are very portable and foldable.

Total cost ~$60.

Kudos Tony!

All the files on Thingiverse: http://www.thingiverse.com/thing:408099

http://hackaday.io/project/2068-%2460-bluetooth-head-mounted-display.-

For a similar wearable device take a look at this one made by 13 year old:

http://diy3dprinting.blogspot.com/2014/07/wearable-arduino-based-display-on-3d.html

How to 3d print a brushless DC motor

Patrick Eells designed and printed fully functional brushless DC motor. You can use any FDM DIY 3d printer, but you will need magnets and wind some copper wire coils.
The motor was designed as a 3-phase, 4-pole brushless DC motor with 4 - N52 neodymium magnets on the rotor, and 3 wire wrapped solenoids connected to the stator. The motor is controlled by Arduino. The total cost to build this motor without the Arduino micro controller and the batteries was 27,71 USD.

Excellent project!

Very detailed guide can be found here:

http://www.instructables.com/id/3D-Printed-DC-Motor/?ALLSTEPS

All the files and guide in PDF format can be downloaded here: http://pitt.edu/~pfe3/3DPrintedMotor.zip

There was a stepper motor printed in the past, but it was printed on commercial grade printer:

http://diy3dprinting.blogspot.com/2013/11/working-3d-printed-diy-programmable.html

Wearable Arduino based display on 3d printed glasses frame made by 13 year old

13 year old Clay Haight made this sub-100$ dollar simple wearable eye display. There are many other DIY Google Glass projects that involve 3d printing, but non with such a young maker.

From the source:

Clay’s DIY “Google Glass” uses the sensors on the Arduino Esplora along with the Arduino LCD screen and a 3D printed frame.

He can use voice commands to bring up a calendar with his schedule, local maps, and temperature and weather info.

A headband on the back keeps it from tilting to one side.
“Now they are extremely comfortable,” says Clay. “In fact I wear them around my house and tell my parents the temperature just for fun!”

Source and more info: http://makezine.com/2014/07/16/diy-google-glass/

Update:

Here is a similar project: http://diy3dprinting.blogspot.com/2014/07/3d-printable-low-cost-foldable.html

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