Let's Make Robots!

Houston--Concepts for a young machine

I've been planning, shopping, ordering parts, and waiting for what seems like forever. I want to show you guys what I've been working on, but it's still just a pile of assorted parts while I wait for certain important odds and ends to get it all together. But a couple of weeks ago I put together a sketchup model to get an idea of some sizing and fit and finish. Since I couldn't upload the model, instead I offer a few screenshots of what I've been working on.

Servo Power Gearboxes - revamped


We have recently revamped our line of Servo Power Gearboxes! Our gearboxes have always been top-of-the-line and super powerful (up to 3,402 oz-in of torque!) but now offer upgraded features and a more durable construction.

My 1st non-breadboard circuit :)

I know..a lot of you good folks could solder before you could walk and probably sleep with a soldering iron under your pillow (hope you remember to turn it off :), so here is this guy in his 30s bragging about his first circuit. Pathetic.

However soldering is a major challenge to me and actually the main reason I didn't get started with robotics years ago. It's just not easy for my unsteady hands. So I'm very happy to declare that I just finished my 1st working non-breadboard circuit. It's a motor+servo shield for my Arduino.

Minimal Picaxe LED blinker

I just found a different way to make an LED blink with a picaxe 28x1:

main:
   inc b0
   let pin7 = b0 >> 7
   ' do other important stuff here
goto main

Rho

04.09.2010
i got the 3pi robot from my friend for yet unspecified time :) so i plan to play with it a bit, put some more sensors on top and as it is usual with my projects make it able to follow line with obstacles course as well as navigate maze. i had to come with some name though and as it will be slightly altered kit i decided to go for the next letter in greek alphabet - Rho.

An evolving 2 DOF hexapod - build log

Hello all.

 

I'm going to use this blog as much as a lab book for myself and my partner as I am for fascinating and entertaining you guys, so if it rambles at time, I apologise in advance.

 

The basic premise of this build is to allow a platform that can be hacked apart and upgraded as needed - it's for learning, rather than a finished product. 

 

OddBot marries the beautiful Li Si Ling

It seems in China you must travel to the brides birth city (or a city nearby her birthplace where they keep the documents) to be officially married. 3pm Sunday afternoon we were on our way!

We had to travel 5 hours by bus from ZhongShan to XingNing to get my step sons passport. The bus had beds for the long trip which was great for small Chinese and children. Not so good for a 135Kg Aussie!

Propeller Survey Program

Yes or No... thats the only answer on my program. After several months of school I finally decided to make another fun program. Success! I was sitting there trying to think when I thought about all the tests I have this week... and there was my idea. I thought that I should create a program that askes questions you must answer. Since it would use the Parallax Serial Terminal and only require me to use commands from the PST object and store characters in variables, I thought it would be easy and fun for now.

The Coding Process:

picopter form instructables

http://www.instructables.com/id/Picopter/

 

hi guys I found this on instructables and thought you guys would like it

you can make your own with EAGLE 

you can find the eagle files on the instructables

Starting SuperDroidBot Blog

So much is happening so fast, I'm starting this blog to document what is going on with the bot, so I can look back on my thoughts from time to time and see how they developed.  Others are more than welcome to participate!  I'll start by throwing in a diagram and some fun video!

Overview

Interactive Stochastic Learning Automaton - cleaned up code

I have cleaned up the interactive Stochastic Learning Automaton code I once wrote and attached it in this short blog. Just send '0' or '1' via serial monitor, if a chosen action was favorable or unfavorable and see how the automaton learns to chose the right action over time.

BoB Jr.

Starting a BoB project after seeing Deshipu's μBoB.

STL Viewer (beta)

Model:
Rotate: |

Another way of looking

Yesterday  posted this: http://letsmakerobots.com/node/1797

Today I realize it should have been a blog entry; It is just my personal trip, but it is not a robot or a walkthrough, so it must belong in my blog :)

Yesterday I went on about how I wanted to use it to detect colors AND distance. Today I had the chance to do a little testing..

20082008212.jpg

It turns out that the (quite obvious fact) brightness of the source has ENORMOUS amounts to say regarding the distance in which we can measure anything.

Dagu's Ultrasonic Sensor testing

I've made some testing with the ultrasonic sensor from Dagu. Tests were made on the platform the sensor is build for, the Asuro. The sensor works pretty well, most of the the time. The range of obstacle detection is from 0..25cm. Sometimes the sensor dismiss an obstacle, when the objects is not directly in front of the robot.

 The video gives some impressions, how this sensor works.

Environment mapping

I'm currently working on an application for mapping the environment with a range sensor. Right now it's only a sharp sensor (GP2D12) mounted on a servo that is turning slowly, while the readings and corresponding servo angles are being sent constantly to my PC via serial. The program then converts the angle and distance to x/y coordinates and draws a map.