Let's Make Robots!

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Shuffles forward via precession of the flywheel, sometimes picking its feet up.
Update 4/23/2014: Now radio controlled stepping, ESC on rotor motor makes for a high stepping robot.   This is a very crude implementation of John W Jameson's … Read more
Follows walls with feelers.
This is my first robot to post at letsmakerobots.com but I have built other contraptions I suppose could qualify as robotic - nothing sophisticated though - just … Read more
Bumps around avoiding obstacles, Entertains kids
  Here is my entry for the Scrap Bin Challenge. It is a "Beetle Bot" whose original concept and design was by Jerome Demers see HERE. The Beetle Bot design is … Read more
It carries a can of 0.5 liters of beer
Using a
I wanted to buid a walking robot and then i did. It cannot stand vertical by itself so i made a wheel based structure in front of it wich is wider than the robot in … Read more
Terd-L, for Two-Eyed Robotic Differential-Locomotion. (I can't believe I forgot to include that right away. May St. Markief forrgive me!) Update 24 April 2013 Read more
Follows lines using IR sensors
Using a
Hello there LMRians!!! Here is my first robot. This is an LM324 comparator based line follower robot. It uses a pair of analog IR sensors. A power supply board … Read more
My third and now fully functional design for Oddbot's Naughts and Crosses challenge. This is a remake of my last tic tac toe robot, which worked but was nearly … Read more
Scurry around under IR or iPhone Control
Using a
I've been wanting to build a simple "Mouse Bot" but one without ANYTHING sticking outside the main body for awhile. Something that LOOKED just like a regular mouse … Read more
Plays Naughts and Crosses (Tic Tac Toe)
This was made to replace my previous Tic Tac Toe robot (the huge box covered in tin foil and wires). The Robot moves first into the center square (where the … Read more
Plays Naughts and Crosses (Tic Tac Toe)
This robot was created as an entry for Oddbot's challenge: http://letsmakerobots.com/node/35296 I learned a lot with this project: just check out the Reflection … Read more
Look for light (supposedly)
(Note:if you're seeing a helicopter and compressed air rocket, that's not right.) The other night, Towlieboy78 said he was having trouble with his Photovore in the … Read more
Robot will be move forward as long as the sensor detects an surface under it. As soon as edge detector sensor goes out of the table, the robot will make an in-place rotation greater than 90 degree and then continue as per sensor value
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Seeks light, runs away when it bumps into something.
This is Blue Bug, not my first robot but the first one I am posting here... The body was made using a couple of old DVD's. I used the herbie circuit from the book … Read more
show off facial expressions
This robot was made with a vex robotics kit and it consists of four servos. It is remote controlled and the eyes are made of pennies! Read more
Hi, I am ALF, short for Analog Line Follower. I am not an alien, i do not eat cats and i am pretty much earth based, more precise silicon based ;-) Ok, this was the … Read more
Demonstrates non-numerical associative memory and learning.
Using a
Greetings! This first post will be an attempt to introduce one of the projects I've been working on lately. Read more
avoids obstacles
this was made of my little robot, blinky. he wasn't working and i wanted to make a new bot and i got new parts, so i got this. he will hopefully: make a noise when … Read more
drives and sometimes twirls with a light on it
this is my car robot. it is very simple to make all you need is the base of that "cyclones" project we worked on earlier. you need to stick the motors into the … Read more
remote control robot that drives around
i made this project with my friend Ness. we got the parts from a remote control car named "cyclones". all we needed to do is tape or glue the battery pack to the … Read more
Solar Roller:Charges capacitor(s) until sufficient charge is reached, then discharges.
I have started finished work on my second robot. It uses a FRED solar engine, and is a really simple circuit; I salvaged a belt and pulley from a cassette player, … Read more
reacts to light
Using a
Here he is, after three hours of soldering. His brain is the exact one from the "Junkbots, Bugbots, and Bots on Wheels" book. He's still a work in progress, and I … Read more
Navigate via touch sensors and sweep dog poop up into a disposable plastic shopping bag.
Using a
This project was named the Scarab not just for its resemblence to the dung beetle but for its functional similarity to that animal.  In principal this machine is … Read more
move forward and sense walls with it's antennas
This robot uses two SPDT (single pull, double throw) switches, antennas, motors, and a battery pack. The antennas are connected to the switches, and so when the … Read more
This robot is a free formed robot that I made, its like my symet but better. It uses a simple analog circuit that stores up electricity until there's enough to make … Read more
drives around until it hits something, then you pick it up and laugh.
Simple wirecontrolled, some stuff I had, 2 switches, batteryholder, Tamiya twin gearbox some wheels and networkcable. Screw it all together and my daughter got a … Read more
Spurt is a brainless line following Beambot. It is based on the Spurt-Mobil from the University of Rostock / Tech. University of Berlin. It is a very cheap robot … Read more