Let's Make Robots!

Recently Collected Posts

This is my hexapod robot. I call it the MicroHexTT. I dont have much space so i wanted to build a bot around the same size as an msrubug. The bot in whole is a … Read more

AVA

Makes Conversation, Answers Questions, Explores
Using a
This is Ava.  Ava is a friendly internet connected home companion robot that mostly likes to talk and learn new things.  I plan on getting her to control … Read more

Tips for having custom parts waterjet cut ⚙

If you have a sophisticated mechanical design for your robot, you may have considered having the parts made by CNC waterjet. But, as with any tool, there are some limitations to this approach. I created thse articles to explain the limitations of this technology and hopefully make it easier to get the custom parts you need from waterjet cutting

KTR-X1 8x8 This is a vehicle remotely controlled to perform tasks in very difficult terrain, characterized by simplicity of construction, low center of gravity and … Read more

I need a sketch for wheel encoding odometry inc library please?

Hi all, 

I am trying to control the speed of my DC motors using wheel encoders and reading the speed with an IR LM393 sensor. 

I have downloaded the library for the timer interupt, extracted it into my ardino library (where all my other libraries work)  and I'm still getting..

sketch_nov05a.ino: In function 'void timerIsr()':

Ros2Bot (upgraded version of turtlebot2) is a personnel Robot Kit based on open source platform for Developing Highly capable application like mobile robots … Read more
Robotic hand designed for heavy duty - could be used as robotic and prosthetic hand
I built this hand because I was convinced that we could do even better than the 3D-printed ones. They are really good looking but they usually don´t have the … Read more
navigates around using sonar and IR rangers, speaks/sings, intruder detection
Using a
This project is my update of the original RB5X.  A little history: The original RB5x   The RB5X is a personal robot that has been around since 1982. Although not … Read more

Attaching wheels to servos

I have got hold of a couple of these...

http://www.robotshop.com/uk/parallax-futaba-continuous-rotation-servo.html?gclid=CMSn9fuQyscCFSsEwwodRLEBEw

 

but want some advice on how I attach wheels to them as the holes on the servo spindles(?) are about 2-3mm wide. Can you buy screws that small?

 

This is my first ever build so I am completely new to all of this.

 

 

Just a simple robotic arm that is controlled by potentiometers.
This is another project that I have done so far at my internship at the Boca Bearing Company. I was having some extra time waiting for some parts to arrive in the … Read more
     UPDATE @ December 6, 2015      Just finished the painting details. Read more
Will hopefully drive autonomously powered by an IC engine
Using a
This is my project blog about creating a serial hybrid driven (RC glow engine -> BLDC generator -> LiPo battery -> 6 DC motors) 6WD autonomous vehicle.  Read more

Programming Language

I've written most of the mechanical aspects of my robot in C++ (native to Arduino DUE) and am moving on to the brains, which is a Raspberry Pi 2.

I'd like to write this in a higher level language than C or C++. I am annoyed at the hoops I have to jump through to deal with strings and for that matter arrays.

I see two main choices, Python, and there is a Python 2.7 and a Python 3.4, and Node.js. What I have at the moment is OpenCV with Python 3 bindings, pocketsphinx, and eSpeak.

LiPo battery monitor

I haven't used LiPo before but I see that it needs to be monitored to make sure the cell voltages do not drop too low. The same is true with  LiIon.

I see two ways of handling this.

Two-Speed Gearbox Concept

I come from the FIRST Robotics Competition, and recently, I designed a gearbox that can shift between two different speeds. This is mounted "invertedly", meaning that the motor shaft points inward of the test chassis as opposed to outward. The piston has a special mount called the "DOG" gear, and that latches to either of the two gear combinations on the lower shaft, allowing that shaft to rotate with that combination's speed and torque.

hello world  it is my first post here,during a long time i would like to have a robot but when i was children it is not possible to have one now with a new … Read more

LIDAR Product Review

Introduction

I was fortunate to be selected by RobotShop to review the LIDAR time of flight distance sensor. This was back in September 2015 and I am 100% to blame for the delay in posting.

Packaging

The LIDAR arrived in a single heavy duty cardboard box with the LIDAR enclosed in a plastic bag and a separate 6-wire interface cable. No hint of packaging problems.

Device Overview

Back to the Origins  Has been a long time since my last robot project. Read more
mBot distance measure shows on LED matrix with digital filter and sound
Measuring in a digital system is always tricky. Values dance between some values just because noise in the environment, lack of accurracy of the sensor or maybe … Read more
He modified this ground unit with machine gun. Ok, first of all this is not my robot. It's from one of my buddy ShaoPing @Taiwan who doesn't speak English and shy … Read more
Hi All, I'd like to share the multicopter design I did a couple of years ago.  I was designing multicopter frames for a while and a guy who I was dealing with for … Read more
Gamified remote controlled Rover with telepresence
Using a
This is my first project posted on LMR as well as my first robot project ever. I started it about 8 months ago in my spare time. I'm a programmer at my day job so … Read more

Experiments with FlowBotics Studio

I was keen to give FlowBotics Studio a go after reading about it in the FlowBotics Studio App Competition.

This SOLOSHOT is now being sold on the net. It works by attaching a TAG on the person/car, and when the TAG holder moves, the camera will track him at incredible … Read more
Avoids Obstacles and Light..
Using a
Phil Is Made of very light weight aluminum, milled to a 8x9 body and a max height of 6 inches. I prefer to use servos as his means of movement for the main reason … Read more
navigates around with infrared and ultrasound
In 2002 I tried making a robot and improved it in 2003. The problem was, I was living in a tiny flat with only a pocket knife as a tool so what I created ended up … Read more
this is a page to help me make a lunar capibitly robot. Please tell me in comments or email me at : jayden.squire560@gmail.com on how to do the programing and … Read more
This is a copy of the "spidy" robot that was published on LMR last Noverber by myblack60impala. Components:   Sparkfun ProMini   2 DFRobot Spiders   … Read more
Builds a probabilistic occupancy map from sonar sensors
Hi everyone,  this is my first robot project not only on LMR but at all. In November I decided to build the apparently classic Dagu Rover 5 with the awesome … Read more