Featured : Fully 3D-Printed Rubik’s Cube Solving Robot

Last modified on 4 October, 2017 at 15 h 29 min
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We love this new project created by O.T. Vinta, it’s perfect for Rubik’s Cube lovers, kids and students. We start to reproduce this mini robot in 30 days. We have bought all parts needed.

Fully 3D-Printed Rubik's Cube Solving Robot by otvinta3d - Thingiverse_DIY_robotic_pinter3d-one

Summary by the author

his 3D-printed Raspberry Pi-powered Rubik’s Cube solving robot has everything any serious robot does — arms, servos, gears, vision, artificial intelligence, and a task to complete. If you want to introduce robotics to your kids or your students, this is the perfect machine for it.

This one-eyed four-armed giant stands 35cm (14″) tall. 70 hours of print time and an entire spool of filament are needed to print it, not to mention over $200 worth of hardware, but once fully operational, it will surely wow your friends and neighbors. Scramble your Rubik’s cube, place it in the robot’s grippers, press a button, and then sit back and watch this amazingly smart and stunningly beautiful machine put it back together. Watch the video!

This robot is fully 3D-printable. Other that the servos, servo horns, camera, electronics and a few dozen bolts and nuts, it has no traditionally manufactured parts. Absolutely no soldering or breadboarding is required.

Link on Thingiverse: https://www.thingiverse.com/thing:2471044
Author on Thingiverse: https://www.thingiverse.com/otvinta3d/about

Guide / How to : http://www.otvinta.com/download12.html

Hardware Shopping List updated with direct shopping links

Q. Item + Amazon link with best price Regular Price per Item (approx.)
4 DS3218 Servo Motor with Horn
$20.00
4 150 mm Servo Extension Lead, Male-to-Female
$1.00
4 Hitec HS-311 Servo Motor
$8.00
1 Raspberry Pi 3 Model B Quad-Core (optional)

This part is optional. The app can be run on a regular Windows 10 PC as well.
$35.00
1 Pololu Mini Maestro 12-Channel USB Servo Controller (Assembled)
$30.00
1 USB 5 MP or 12 MP Webcam with 6 LEDs

Search on eBay, Amazon, etc. for Webcam with LEDs. The camera we use was sold under the brand “HDE” but often no brand at all is mentioned. Just look for this distinctive shape. It could be bought for as low as $3.00 – $5.00.
$4.00
1 AC/DC adaptater 6V 3A (3000 mA) power

This robot uses the SMAKN power supply adapter (shown here), with the round plug replaced by two female connectors to be plugged into the Pololu servo controller. The replacing was done by a competent technician proficient in soldering. Use a wall plug at your own risk. See the Connecting Electronics section below for more information.
$8.00
1 Standard-Size Rubiks Cube
Without this item, the robot is completely useless. We recommend the stickerless, smooth-operation variety. Our color recognition code was only tested with the standard (original) colors shown here. Please do NOT use a speed cube!
$12.00
76 Metric M3-12 Phillips-head Countersunk Bolts $0.06
36 Metric M3 Nuts $0.06
9 Small 2mm Wood screws or Metric M2x8 Molts
These are to attach the HS-311 horns to the servos, and one more to attach the Pololu servo controller to the back side of the camera holder.
$0.06

Total cost of Hardware (approx.): $200.00

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