by Ioannis Kedros:
I’ve start building multicopters (or drones if you like it better) five months ago! My first one was a scratch build tricopter based on a KK2.1.5 flight controller and three DT750 motors. Everything was made out of plywood and pinewood! It held excellent if you consider that I was a newbie pilot (still I am) and I had something like 3-4 crash reports per flight!
Two moths ago I decided to go a step further and make my second multicopter. This time it will look a little bit more professional than my previous one! To begin with it will be a quad copter, carry a better flight controller, reuse parts of the previous build (in order to lower the cost) and it will be able to stay above the ground longer.
Making a Quadcopter - [Link]
Re-invented robotic mobility to conquer stairs, bumps and more! The ground robotic revolution is here! Get a platform while they last!
Innovative leaders in robotics technology have recently announced the launch of their Kickstarter crowdfunding campaign to bring Ground Drone, the next evolution of ground robotics, to the market.
Ground Drone Project: A versatile mobile robotic platform - [Link]
All parts were developed separately. This allowed adjustments in the assembly as well as smaller changes in case the design of one or other part become required.
Focus on low cost and use of materials easily accessible in the local market.
Homemade Plotter (CNC Machine) - [Link]
by mikelllc @ instructables.com:
This project describes the design of a very low budget 3D Printer that is mainly built out of recycled electronic components. The result is a small format printer for less than 100$.
First of all, we learn how a generic CNC system works (by assembling and calibrating bearings, guides and threads) and then teach the machine to respond to g-code instructions. After that, we add a small plastic extruder and give an overview on plastic extrusion calibration, driver power tuning and other few operations that will bring the printer to live. Following this instructions you will get a small footprint 3D Printer that is built with about an 80% of recycled components, which gives it a great potential and helps to reduce the cost significantly.
EWaste 60$ 3DPrinter - [Link]
by appleman123987 @ instructables.com:
The planterbot is a plant monitoring robot. It uses capacitance for sensing moisture from the plant instead of using the usual soil probe, this means that wires don’t go into the plant. It also detects temperature and light using thermistors and Cds photocells and displays the temperature and light graphically on the front facing LCD.
Planterbot – The Plant Monitoring Robot - [Link]
Nixie, a tiny wearable quadrocopter camera on a wrist band:
Team Nixie is developing the first wearable drone camera, which can be worn around your wrist. The team will be presenting their prototype for the Intel Make It Wearable Challenge Finale on November 3, 2014 in San Francisco.
Wearable quadrocopter - [Link]
ScratchDuino is a highly customizable, simple and interactive open source robots construction kit based on Arduino. Unique features of ScratchDuino are simplicity of assembly by using magnetic-mount parts and simplicity of programming the AI by MIT Scratch, a visual program language. Scratchduino can be used as an interactive educational open source platform for kids and beginners, as well as a vast experimental kit for advanced robots enthusiasts.
ScratchDuino magnetic robots construction kit - [Link]
The Self-organizing Systems Research Group at Harvard has created a “thousand robot swarm“, named Kilobots, which can self-arrange themselves into shapes and patterns. Each robot in the group moves uses two vibrating motors to move and an infrared TX/RX pair to communicate with its neighbors and to measure their proximity. The Kilobot robot software and hardware design are available open-source for non-commercial use.
Self-organizing Kilobots - [Link]
Here’s a pool cleaner robot built on ATmega by Davide Gironi:
My replacement electronics it is based on ATmega8 micros.
The project is divided into two parts:
The timer contains the 220 AC to low voltage DC current, and it is out of water, his purpose is to start and stop the cleaning pool robot, which of course is inside the swimming pool.
ATmega based pool cleaner robot - [Link]
Trevor Slaton and Dawn Xiang, students from Cornell University, designed this autonomous fire extinguisher that is capable of detecting fires through photo sensors and aiming a water nozzle along two axes to extinguish the fires. Their prototype can detect and extinguish candle fires from about 1 ft. away. Their system uses two servo motors to control the vertical and horizontal position of the water nozzle and a water pump to send out a burst of water from the nozzle. The ATmega1284p microcontroller is used to control the pump as well as the servos.
Autonomous fire extinguisher - [Link]