Cápa means shark in Hungarian.
The robot resembles a live hammershark. It uses a medium motor to move its tail, which is used for the shark to turn. It moves forward with a large motor and two tyres. Its jaws open and close with a second large motor. The two touch sensors at the front are purely for aesthetics but you can use them if you like. Finally the head has an ultrasonic sensor which detects if something is a potential "prey". This resembles the real hammer sharks' ability to sense with their "hammer".
- 29 Mar 2019
Building instructions for the robot used in WRO 2014. It is a small robot with two light sensors and could be used for collecting elements.
The robot is built from LEGO Mindstorms EV3 parts.
- 30 Nov 2015
This construction demonstrates one way of using а rack with a gear wheel. It allows to turn circular motion in to a liniar one.
- 01 Feb 2019
Building instructions for a safe mechanism. The medium motor can be used for dialing in the key lock. The brick buttons can also be used for a pin code input.
One of the large motors unlocks the latch, the other one opens up the lid of the safe.
- 01 Dec 2015
It moves and it collects. It collects objects.
These are building instructions for a LEGO Mindstorms robot that could collect objects. It is not actually catching them and that's why we call it "Simple Catch Bot". The general case is to program it to move on the floor and collect some of the Mindstorms wheels and tires coming with the 45544, 45560 or 31313 LEGO sets.
- 06 Jan 2018
This is one of the robots used in World Robotics Olympiad. It uses chains to move ping pong balls out of a container.
- 12 Dec 2015
The kinesthetic and memory game works with a program you can download from here. In these instructions you will see the 7 modules from which it is built:
- Touch sensor module;
This robot is meant to be very modular and to enable its owner to upgrade it and modify it.
- 16 Nov 2019
This robot was made to count coins. The door slides, making the gyro sensor rotate, and by doing that, allowing the robot to measure the size of the coin that enters the safe. By changing the points where the gyro's beam connects, the sensor's thresholds change.
- 17 May 2019
This is a vehicle that is used to help you to learn programming, to experiment with addons, attachments and constructions. It has a frame. Which is nice. A frame is always nice.
It has two wheels at the back, but this is needed only if you have them.
- 04 Apr 2019
Uylam is a robot that simulates a stormy environment for its ship. It is made using two piston-like mechanisms powered by a Large motor and offset by 90 degrees to create shaking similar to that of big waves. The ship itself is made out of a medium motor on a turntable and a gyro sensor attached to them. The purpose of this is to explore what is the best position of a ship compared to the waves, so that it sustains the least amount of shaking.
- 02 May 2019
Building instructions for a LEGO Mindstorms EV3 Motorcycle, but this time with helper wheels. The helper wheels solve the problem of making turns with the robot. If the robot loses balance it will fall. The goal of the helper wheels is to make it easier for the robot to turn. Small modification, but really make a difference.
- 17 Mar 2018
This LEGO Mindstorms robot base is small, compact and packed in a very small volume. The goal of this constructions is to be used as a base and to show yet another way to experiment with adding motors to the brick.
- 18 Dec 2017
"Bot. Spy Bot."
Many of us are fascinated by the idea of spies. Movies for "spies" are also very popular and if you haven't watched them check out the 007 movies. These here are building instructions for a LEGO Mindstorms robot with two touch sensors and one ultrasonic. It could be used as a spy - sneaking closer to you and detecting if you move or if you touch it. The whole idea for this robot came from NXT when there were sound sensors. Currently, there are no sound sensors in the EV3 set, but the robot could again be quite fun to program.
- 12 Jan 2018
Rollbar is a handy device, which only purpose is to measure lengths. Its main purpose is to measure curved lines.
It's designed for right-handed people, but with some small adjustments, it could fit any palm.
- 30 Apr 2019
Laboratory 2.0 is a second and lighter version of the Laboratory. The new version of the robot replaces its motor with a gyroscope and uses a lightweight flip. Programming this robot requires a well-developed abstract thinking. The main purpose of the robot is to measure the volume of the bubble placed in it only by the values measured by the sensors.
The construction has a valve with which you can let the air out of the balloon at different speeds.
How exactly the balloon is placed in the robot is explained in this lesson.
- 18 Apr 2019
Dwell is a car built with a LEGO MINDSTORMS EV3 set. It uses the medium motor for powering the back wheel and one more medium motor for rotating the front wheels and thus turning. Of course, there is a differential at the back.
- 10 Jan 2019
Building instructions for a LEGO Mindstorms EV3 active attachment for changing gears orientations. This is the second attachment from the series.
- 23 Oct 2014