After having printed a lot with ABS and PLA, finally decided to get a roll of Ninjaflex filament for testing on my Prusa Version 1. I was expecting that given this filament’s flexible characteristcs I would have to do many adjustments to the printing parameters however I was surprised at how easy it was to print almost… Read More Printing with Ninjaflex
After a long hiatus of Robotics activities I am starting a new project: A Chess Playing Robot. As a logical step up of the Tic Tac Toe Playing Robotic Arm I built some years ago I have started building a Chess Playing Robot. The idea is to build not only a Robot Arm that play… Read More 3D Printed Chess Robot Gripper
Project is to build a 1:40 scale RC boat using various technics: The ABS Plastic hull will be formed with a home made vacuum molding process using a mold made by carving a block of wood using a CNC mill. The hull model for the CNC mill will be created in Solidworks using as reference… Read More Remote Control Boat Hull Design (2011)
I bought a plastic fresnel lens from a dollar store, playing with it I imagined that if mounted in a helmet it could be used for an interesting costume. The idea was to position the lens about 20 to 30 cm in front of the user face so the magnifying effect will really show and… Read More Fresnel Lens Helmet (2010)
Designed in OpenSCAD. Differential drive robot base for experimentation and for future fire-fighter application. Base, wheels, caster wheel and all sensor mounts printed in PLA plastic with Prusa V1 3d printer.
Finally there was a break on the weather and the wind, and a patch of compacted snow (skating rink) where I could test the Quadcopter. I was able to fly it a couple of times before making a hard landing which damaged two propellers, broke two of the plastic screws and loosened the landing gear.… Read More AeroQuad Quadcopter, First test flights (2012)
Finally had some time to continue working with the AeroQuad Quadcopter. Took me a couple of days to have it ready for outdoor flying tests. The initial setup and tests consisted of: Download and install the Arduino v1.0 SW on a Macintosh. Download the AeroQuad v2.5.1 Sketch and uncomment the right configuration parameters (Arduino Mega… Read More AeroQuad Quadcopter, Initial setup and indoor tests (2011)
Arduino Quadcopter based on the Open Source Aeroquad. The plan for this project is to add GPS based autnonomous navigation between waypoints for aerial photography and video. Components: Arduino Mega 2560 (ATMEGA2560 MicroProcessor) board. AeroQuad Shield v2.0.7 with a ULN2003 IC (Darlington Transistors to drive external LEDs), 5 SparkFun breakout boards: Level Converter (3.3V-5.0V), HMC5843 Triple… Read More Quadcopter, Construction (Arduino Aeroquad) (2011)
Chronometer for timing robot competitions. Article published in Robot Magazine Chronometer for robot line following or maze solving competitions. Used at the June 2011 first annual CNRG Ottawa Regional competition. Consists of a Propeller board and a pair of infra-red (IR) emitters and detectors. Schematic of one of the gates.
The following describes a simple method (inverse kinematics) of calculating the angles for all joints of a robotic arm to obtain a desired position of the end actuator (gripper). The video bellow shows the algorithm at work. The picture bellows shows the robot arm used for this example. It has 5 degrees of freedom: 1.… Read More Simplified inverse kinematics model for a 5 degree of freedom + gripper robotic arm (2011)