Tetrix FTC. Modify the PushBot to collect balls
There are modifications that you must do on the FTC PushBot robot. Let's discuss them
- #566
- 08 May 2017
There are modifications that you must do on the FTC PushBot robot. Let's discuss them
We start with the previous program where we made the robot move forward and turn. We continue in this tutorial with repeating the same RobotC instructions four times. Our goal is to make the robot move in a square.
In this tutorial we would introduce you to the concept of loops using this VEX EDR Robot. As a final result we would have a program that makes the robot move in a square and not by repeating the same instructions for move and turn four different times.
In this video tutorial we demonstrate how to accomplish M03, M04, M14, and M15 of the FIRST LEGO League 2023-2024 MASTERPIECE Challenge competition. We use the Chain Monster which is a LEGO Education SPIKE Prime robot equipped with two pinless active attachments.
The side attachment uses a gear mechanism to press down a lever and drop the mini figures with loops. It has a more advanced construction with a special lock to prevent the attachment from rotating when mounting it on the robot. Pay attention that the lock should be removed before the start of the run.
We use a special construction to help us align the robot in the base to ensure the robot starts from the same place every time.
This animation demonstrates the principle of aligning to a line with two color sensors and a LEGO Mindstorms Robot Inventor robot. This is a useful concept for FIRST LEGO League competitions where you want to know exactly where you are on the field and to achieve consistent behavior. In the course lesson you will also find a live video tutorial where we enter into more details about aligning. We align the robot to a line by moving both sensors slowly until they both see a black line. When one of them sees the line we move only the other. At the end we return the first sensor back.
This video tutorial is about accomplishing the Pull-Up bar mission from the FIRST LEGO League 2020 RePlay robotics competition. The goal of the mission is to move with the robot and pull the robot up. With this video tutorial you will learn how to build such attachments and how missions that are about lifting the whole robot could be accomplished. The attachment also makes a very good use of rubber bands.
In this robotics tutorial, we give a few notes for the teacher about adding an axle to the front of the FTC robot and attaching a plastic plate to this axle to make the robot collect balls.
How to use the robot when the buttons are not accessible.
Display a matrix on the brick screen. Simple and easy. Download and run the program to see how
During the FIRST LEGO League competition you can hardly use the sound block, because of the noise from the excitement around the tables, but it has a few interesting applications. I this video lesson I will show you how to use the sound block and build a program that makes the robot say which color it sees.
This is a 10 out of 10 tutorial for a complex robot attachment that does a precise drop and is auto-correcting at the same time. It has decent consistency and reliability. We drop cargo onto the train and use a LEGO Education SPIKE Prime robot for this FIRST LEGO League 2021-2022 competition.
In this video tutorial we demonstrate a Grab attachment build from LEGO Mindstorms Robot Inventor 51515 set. The goal of the grab attachment is to accomplish the mission of bringing loops back to base without loosing or dropping them when returning. The principle of the grab attachment also demonstrates how to have a a locking mechanism. In this way there is not way to the loop to escape.
Experiment with the software for about five minutes, before we even give you any directions.
In this video, we introduce two pieces: beam with pins and the angular beam with pins
This 10 out of 10 tutorials is about consistency and reliability of the robot when accomplishing 5 missions in a row. We explore how we move between mission models. The programming is in the previous tutorial, here we look and discuss the behaviour of the robot
In the set for the Perfect Course, you have 3 different type of cables. They are called Breadboard Jumper Cables. We would need to use them to extend the default cables on the car and to connect the car components to our new controller
By using the GamePad to control the arm with could lift it and return it back. The main problem with controlling the arm is that if you just use the motors you would hit the robot, bend the axles and breaks the gear wheels. We would use the distance sensor to make the arm move without hitting the robot.
Learn to program the Game of Life on the LEGO Mindstorms brick screen. This would require drawing on the brick screen, using blocks with switches and loops.
This video tutorial demonstrates an attachment that flips a mission model. The mission model is attached to the field, but it contains a lever. This lever must be flipped from one side to the other. There is a switch. We use a pinless active attachment with gear wheels, and you can see how this works in the tutorial. There is no use of sensors as we don't need them. We will leave the alignment and positioning for some other tutorials.
Overview of the big task that we want to achieve in this module.
In this video tutorial, we use the motion sensor and demonstrate 10 out of 10 times how we can keep the robot moving in a straight line. The program is described in the previous tutorial in the lesson where we enter into the programming. Here we visualize how consistent and reliable the behavior of the robot is.
This video tutorial demonstrates again the consistency of the program for aligning to a line. We run it ten time. We the robot is always coming from the left it is always arriving at the same position. When it is coming from the right it is always arriving at the same position.
This LEGO robotics video tutorial is a 10 out of 10 run of the one of the most complex missions at the FIRST LEGO League 2021 RePlay competition. As the mission has three parts we are measuring the success rate of each part of the mission. What you can learn from this tutorial is how to achieve three missions in a single run including line following and a lot of aligning
Following the Advance Sensor Calibration course section, we found the min and max values detected by each sensor. Now it is time for the real deal of the calibration. Detect the current value from the sensor and find what is the percentage of this value for the range between min and max.
How to add a plastic plate to the FIRST Technical Challenge Robot build with Tetrix. The plastic plate is for collecting the balls. The plate should rotate and should be connected to the axle.
With the last few videos, we entered the math world. Why we do it and what to keep in mind