Let's Make Robots!

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wrench_orange.png Your work in progress or a finished robot: Robot project
script_edit.png Write in your own blog: Blog entry
comments.png Discussions and questions: Forum topic
brick.png Show what you are making robots of: Component
lightbulb.png Help others with what you have learned: Tip or walk through
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Creep, trip over its own legs
This is my attempt at a four-legged crawler. Right now it just has two servos per leg, and pretty random ones at that. I plan to replace them and add a knee to each … Read more
Spinning line follower or maze solver
I've now attached a 3D model in Sketchup. Scamper started as an experimental omni wheel platform. The challenge with omni or mecanum wheels is that you need precise … Read more
autonomous, web controlled.
Hello everyone! I've been learning as much as I can, but now I am starting to build. And with info / help from this site I hope to make some awesome robots :) the … Read more
Hey guys, I have finally gathered up enough salvage parts and such to finally make a half way decent robot. This is the first custom robot, meaning that all the … Read more

RG2

New Video 8-24-14      RG2 combines several ideas i have been thinking about for a few years.      With one CR Servo it can go forward or turn left or right. … Read more
Robotic parts made with simple tools.
     Even with 3D printers and milling machines accessible nowadays, I guess this post will interest some people. From time to time, I am asked how I produce my … Read more
26 Days to go! We are halfway done with the entry period and we have 4 entries so far. If you are considering making an entry but you are concerned about having … Read more
Here is a simple upgrade for the Raspberry Pi camera. STL files Here :- Thingiverse_Chiprobot Although the stock lens is sharp ..... it lacks that spycam … Read more
Plans to follow a line, dreams of solving mazes
UPDATE 8/24/2014 : Testing out a new design in the form of MB-3434 Thanks to Lumi, I have a set of 3D printed parts of MB-3434 to layout a similar base for Nano … Read more
After a long hiatus, I decided to resume working on this project. I bought a USB power supply, that easily powers the Pi with the camera module and wifi dongle … Read more
Plays Music using a DC brushed motor for a speaker
Almost all small robots have a couple of DC motors to drive the wheels. This tutorial explains how to use those motors as speakers. Theory Basically a speaker … Read more
An air muscle contracts when is is pressurized
I have been looking for alternatives for servo motors, and I stumbled apon air muscles. It seems to me air muscles are very promising they can do a significant … Read more
Latest Blog Entry (19 Aug 2014):  Phase 9 - Web Control (Serial Preview/Wannabe Web Control) Notice: Currently WIP on Phase 6 & awaiting parts. See project … Read more
App controlled using arduino uno, android
The robot will think using a cheap smartphone(<80€) and use gps, accellerometer and compass data from the phone to command arduino through bluetooth or host … Read more

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Recently collected


Pet (work in progress)

I have not built my first robot yet - waiting for the parts. But I have the plans for my second robot ready. He, just a little ambition :D.  My second project will be a prototype for a robot that can be sold as a consumer robot. I will call it Pet - working title.

This is how I imagine it. When you order Pet, it will come in a nicely designed box. In that box you will find a shiny sphere, a little smaller than a soccer ball. One size of the ball will be flat. You will also find a smaller box that contains a base plate with an electrical cable. No on/off switch. No manual.

Simple servo bracket

Birdmun an Hi jinx got me looking into open scad, he is code a bracket for a servo you can adjust just by playing with a few numbers, the software is free and there's some tutoreals on line and youtube, you can export STL's as well. I did not think I would like it but after playing with it, my mind is more open, for simple shapes it is very fast.

http://www.openscad.org/

Servo Bracket p, li { white-space: pre-wrap; }

difference(){

union(){

Capturing Data from 7-Segment Display

Something I've wanted to do for a while is to be able to digitize the data from cheap sensors with a 7-segment display.

I decided to give it a try with some USB charge meters.

I purchased four of these meters.

I opened up one of the blue ones and probed the pins to see how the 7-segments were wired.

Servo problems!

I'm having a lot of problems with the servos I'm using to build a quadruped robot. I should start by mentioning that I bought the servos from Dagu like 4 years ago, BUT most of them had never even been unpacked until recently.

The problems are the following:

This tutorial is still under contruction so please check weekly for updates. I have taken it out of "Draft Mode" because it has a lot of useful information for … Read more
Ok, so I have wanted to build a robot for a while, but school prevented me from starting anything.  At the beginning of this summer I bought a Raspberry Pi to just … Read more

Flash Memory of Arduino Uno

 

Sketch uses 13,308 bytes (41%) of program storage space. Maximum is 32,256 bytes.

Global variables use 2,082 bytes (101%) of dynamic memory, leaving -34 bytes for local variables. Maximum is 2,048 bytes.

processing.app.debug.RunnerException: Not enough memory; see http://www.arduino.cc/en/Guide/Troubleshooting#size for tips on reducing your footprint.

Inspired by RodriBot, by Luismi, I decided to make my own biped. I used the four servos that didn't fry in Kubik (the ones I had there before replacing with bigger … Read more