Let's Make Robots!

mini

High speed omni directional robot ideal for soccer bots
Using a
Now with video, Scamper appears to be a little wobbly at slow speeds but that is because at only 6%, the motors are constantly stalling and restarting. Once the … Read more

Updated instruction manual for Mini Driver

The Mini Driver was released by DAGU some time ago. It is essentially our Magician controller in SMD format. Unfortunately the engineer who designed it does not have very good English so I was asked to re-write the manual. You can view/download the manual from here: https://drive.google.com/file/d/0B__O096vyVYqczRjX1k5LTRkcjA/edit?usp=sharing

Pushing the limits with encoders

This is now a tutorial and can be found here: http://letsmakerobots.com/node/39098

I've been working on some code so that a simple Mini Driver using a lowly ATmega8A can drive two motors with encoders and 8 servos. This may not sound hard at first until you remember that the Servo library kills PWM on the ATmega8. To make matters worse, D2 and D3 are the external interrupt pins but we need them for driving the servos.

The Service Droid is a new robot kit I am designing. It is intended to be a low cost, D.I.Y. robot chassis with two 3 DOF arms. The gripper on the right arm is … Read more

New Playful Puppy kit from DAGU

The new Playful Puppy robot kit from DAGU will be available from April 2013! This new version of the robot is smaller and easier to wire up. Magnetic clutches have been included on the pan / tilt assembly. The manual now explains the code in detail to make it easier to understand and modify.

servo for mini hexapod

Hello,

I want to build a mini hexapod and i would like a suggestion from you for a cheap servomachine (de kserw an to grafw kala auto) to use, which will be sufficient for this project.. I have found these here on my own:

HobbyKing HK15148

HobbyKing 928BB

sg90

mg90

sg91s

Multipurpose Mini-Machine for your Workshop

These days everyone is talking about how great 3D printing is but for the hobbyist this still limits you to plastic parts. Before 3D printers were around I always wanted a lathe and a milling machine, I still do!

When you want to build more than just basic robots it is sometimes necessary to make small metal parts. Maybe you need a special metal rod, mounting bracket, shaft adaptor etc.

Prototype animatronic head

Well my boss is involved in organizing a robot head building contest in China and asked me to make an example to inspire the contestants. I know many will just be made from cardboard and wood but I decided that if I was going to spend time on this project then I wanted to make the most of it and develop a new product.

Help with Micro/Mini Gearhead motors for tiny bot

Ok so if you've read my profile here, one of my goals is to create/produce a low cost, versatile micro/mini robot that could be used as a swarm bot.

Currently I'm trying to source some decent tiny gearhead motors for under $12 dollars. Today I've come across these:

http://goo.gl/H17Wj

and this

http://goo.gl/0U1bf

 

Also there are some 3V gearmotors of the same dimensions with varying RPMs (from 30 to 100rpm) available as well. The torque ratios are not given for those, however.

I REALLY like my FEZ Panda II !!!!

Soooooo, I got my new FEZ Panda II and I thought I might like it. I was right, I really do!

Basically, this Arduino sized board (compatible with some Arduino shields) is like the "FEZ Mini" on steroids! One of the many great things this board has is almost all the processor pins broken out to connectors that accept wires or shield pins. Other great items are a Micro-SD drive and a realtime clock. I did a firmware update without a problem. FEZ Mini programs are running just fine with an update to Panda II libraries.

C# and .NET Good websites area.

What would be great is to reserve a topic so everyone can put their favorite websites to share (LMR being first, of course!)

I have found an AWESOME website with lots of C# stuff and links to other great websites.

Everyone check out: http://www.csharptools.com/ you owe it to yourself!

I really like my FEZ Mini Robot.

I am totally ejoying my FEZ Mini Robot! I thought the C# code might be hard for me but I am really starting to like that language. It is a "shift" in ones thinking about writing a good program. Now I am sure I would "mix some things up" if I went back to programming on a Arduino.

No fears mate about the C# code running on the FEZ Mini, it works just fine. The build/deploy/debug procedure works, but it still holds a lot of secrets. (The FEZ Mini board sends back "Rebooting..." like your device is acting like small computer!)

Okay this is just a concept at this point, but If it generates enough interest i'll begin finishing the design. I want to take the Sanguino, Arduinos Middle child … Read more
This is my attempt to build a very small and light but offroad vehicle. The accelerometer acts as a tilt sensor. A bandwidth of 1Hz has been set with according … Read more

Mini battery - need advice

I'm currently working on a small robot with 2 hacked miniservos, attiny45 and some photoresistors. I want the robot to be really small (it's about 6x5cm, 3-4cm tall) so am looking for a power source, that would be both small and efficient. I was thinking about button batteries but it turns out that they can only supply 0.1mA of continous drain.

Thanks for any advice.

Making parts

I spent Thursday night making hubs for new robots.  Enjoy the video.

Canadian National Robotic Games 2010

Hello all,

I had a great time in Toronto for this years Robot games.  I managed to get 2nd place in the masters mini sumo competition with Blaster shark.  I made a new robot called Driller shark which I will post shortly in the robot section.  It didn't do that well, but all in all I had fun.  Here are the pictures.

Ordinary lunch kit?

Mini Sumo Bot Parts!

Intro

I decided to make a mini sumo robot a few weeks ago instead of doing an obstacle avoider. Turns out that once you think about it, mini sumo bots and obstacle avoiders are pretty much the same! The only changes I would need to make would be to the code. Great! Sumos can also double as line followers. So in short, they're pretty versatile. Here is an image of most of the parts that will go into this sucker. 

Picture

Arduino voltage regulator and other questions.

 Hello, I have a few questions I hope somebody or several people can answer :)

 

Cheap mini wireless cameras

I was playing around with some code for machine vision (object/facial/color/motion-detection) a long time ago, and I'm thinking to put a camera on a robot sooner or later and see where that'll take me.

So I was looking for cheap wireless cameras and I was astonished to find these:

900MHz Mini Wireless Color Camera w/Built-in Microphone - $25.50

This mini stepper motor from the Electronic Goldmine was ridiculously cheap. However, it is wired strangely for a stepper motor, so I've collected some more info on … Read more

A mini relay like chip?


Here is the setup, I need a picaxe to "push" 2 buttons when it receives a high digital input. 
I will be using a picaxe08M and will have 2 digital inputs(2 buttons) and to digital outputs to triger the relay.
 
I need somethink like a relay but much smaller, about the same size a the picaxe chip.
 
It only need to handle 5V.
 
Anybody know of something that would do the job ? 

Miniature Swarm Bots - Prototype

Cool, miniature bots. These are prototypes, but they show how they want them to be eventually.

Mini Biped

I've been wanting to see something like this for a long time, and have never been able to make it.

A couple of people probably know games like WarHammer.

For those who dont, WarHammer is a stratagy game played with mini figurines, out of a Fantastic/Midivel times. Those figurines are generaly abaut an inch (about 2.5 cm) high, unless somekind of Troll or something.

Very cheap but fun little beginners robot. It think' it has a brains within a Picaxe 8
Using a
Edit: Check out this nice clone: http://letsmakerobots.com/node/8386 From building big, nasty, with large shovel, 2 cores, multiple sensors, soundsystem etc, I got … Read more