Let's Make Robots!

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Write on the pavement at high speed!
Using a
Speed writter races around with a spring loaded piece of jumbo chalk writting words. Using a hacked "Rebound" RC car for the body and an Arduino Nano for the … Read more
Hi guys, this is my next robot. He is very easy. I control him with "radio control". He receives two servos modiefied for continuos rotation and one jockey … Read more
making Rover using Faulhaber 24V BLDC and ATxmega128/256. Wireless Communication using xbee. Main host CPU running windows 7 with custom developing application in … Read more
  This is my first completed robot hence the name JR-1.  I used 1/4 inch melamine for the body and bick pen sections and bolts for the risers. The motos are … Read more
Drives around blind at the moment
Using a
Well, here's the post about my first robot. It's not yet finished... so bear with me as I iron out all the bugs. I purchased an RC Jeep at Walgreen's (US drugstore) … Read more
Here goes 812-R8. I really wanted to get something posted as this bot has been sitting here for almost a week now. More details and photos will be added later … Read more
Hey guys, Figured I'd share some of my more recent work; Dragoon. This is an RX-64 based quadruped robot using an ArbotiX Robocontroller and the new & … Read more
Howto make sound without any sound transducer using only the DC motors of your robot.
Description: I  am just start to play around with the new Arduino Tone library, when I realize that I have no sound transducer laying around here. Than I remember … Read more
Hi guys (and girls) I need some help here. I’m trying to make a beads sorter for my kids, but my funnel approach is not working. Read more
Cheap 4WD off road chassis for your robot
The chassis of the "Rebound" is perfect for small off road robots. The PCB has a radio receiver and dual "H" bridge. This walkthrough shows you how to make the … Read more
Runs around bumping into stuff
One of the first ‘robots’ I built was a Beetle bug based on the intractable found … Read more
Navigate arround using 2 IR Leds and an IR receptor
Using a
This is PJBot version 3. The brain of this Bug is an Arduino. Now, it only go rolling and  avoiding obstacles that it detects with 2 led's and 1 IR receptor. Read more
This is the fusion of my old Qwerkbot project and a 4WD base, with omniwheels replacing the originals. I've also attached one of Oddbot's compound IR sensors for … Read more
Free program for drawing complex flow charts
It’s always good practice to draw a flow chart before start coding. That will save you lot of debugging problems and the structure and flow of your program will … Read more

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Recently collected


Kirchoffs Voltage Law and Current Law - is there easier math for this?

I think I understand the simple examples for this law, thought the math (algebra) is a bit daunting as its been many many years since high school, and I wasn't very good at it then. The more complex examples make me dizzy.  I have to believe there is an easier way to understand and use this law in my robots circuits. Or is this something that I will rarely use? Is there an easy "rule of thumb"?

Here is an example from the class, not even terribly complex, but seems that way for me.

RoboServant is my newest project that I have been working on. I first started this project by making Sparky the little robot that would roam around the house. … Read more
Robots can be made out of anything... can't they? Mopsey is a friendly bot' made from craft fur and a few electronics - designed for simple interaction. Very … Read more
Expresses emotions, solves problems, artificial consciousness
Virtual robot girl will have human like skills. Human like skills means simply, she will be able to learn like a human, she will be able to express emotions like a … Read more
  This is my first raspberry pi project ever. So I am already quite happy with the results. About the robot: It's a modified RC toy (about 0.5m tall). Beside … Read more

Building strapping

Im not sure what it's called, CTC can you enlighten me? But it's cheap and easy to work with. I've used it on Retro bot for the extra battery holder http://letsmakerobots.com/node/8004 You should be able to get it from you local building supplies store. Easy to bend, and cut it with tin snips.

strap.jpgstrap2.jpgretrostrap.jpg 

Cuts parts in wood, plastic, aluminium
                        I always wanted to be able to do my own parts. So I tought it what time for me to do my own 3 axis CNC :) I wanted to share in … Read more