
Improving FLL Robot Game. Recap on Lifting the robot
Let us do a quick recap of the whole lifting mission and its solution
- #467
- 05 Apr 2017
Let us do a quick recap of the whole lifting mission and its solution
Following the principles from the previous video, try to make the attachment that you've built, more stable and durable.
In this episode we build a reusable attachment for a LEGO Mindstorms EV3 robot that changes gears orientation and direction. It is one of the most useful attachments that you could use to move levers up/down and right/left. Adding the attachment on the robot takes 2-3 seconds and shows a very useful general principle of how to build reusable attachments.
In the final video we explore how to trigger the release of the attachment with just a rubber band. The release is triggered with a gear wheel that rotates in a specific way. This saves speed, does not require additional LEGO Mindstorms motor and is precise enough for a competition.
This is the attachment of Team "Nightbeast", with which they :
1. Eject the 2x4 Brick by placing a Regolith Core Sample into the 3D Printer.
2. Crater Crossing
3. Tries to score a meteoroid( tries to shoot a ball)
From missions M03,M04 and M014 from FLL Into Orbit Challange
Each year the FIRST LEGO League robotics Competition involves loops. In this video tutorial I will go through the most common way of taking loops, show its disadvantages and suggest another way to do it.
Here we continue examining FLL 2014 World Class missions. We show different ways, for putting the insert in place as well as taking the loop from the robotics arm. Some of them are quite specific, which reminds us, that you need to think out of the box, while solving the missions.
Probably the simples trick for pinless attachments that we've found. It is a construction build in just three steps. Simple as that. But it has a lot of potential to teach you how to use pinless attachments. Pinless attachments are very useful during FIRST LEGO League and World Robot Olympiad competitions.
One of the spacers that the Nightbeast team used in FLL 2018/19 Into Orbit Challange
This is a simple pinless active attachment for the SUV Box Robot.
In this attachment we use "(32498) Technic Gear 36 Tooth Double Bevel". There are four pins added to the wheel and it it this pins that engage with the "(32072 ) Technic Gear 4 Knob". The more important thing is that the knob wheel and the gear wheel are parallel to each other.
While the motor rotates the attachment has 4 points of contact (instead of one or two when two Knob Wheels are in contact) with the robot knob wheel. There are no forces that drive the attachment to jump and lose engagement with the robot.
This is a frame for the SUV Box Robot. Tis frame is an adapter between the robot and the attachments. You can add-in several attachments on it and mount them on the robot simultaneously with one movement.
The frame has two locks that make the attachments stick to the robot. Also the front Knobs must not be used for very powerful activities due to jumpings, unless the frame with attachments become heavy enough to prevent any jumping of the frame.
This is an attachment is designed for Luly, small LEGO Education SPIKE Prime competition robot with 3D building instructions. On a robot most of the time you place attachments on the front/side/top. These instructions show how to build an attachment that could be placed on the front of the robot. The idea is to demonstrate the principle and you can expand and build a more specific attachment for the mission that you are accomplishing. Check the courses in which this attachment is used for more information and tutorials on how to use it.
The goal of this robot attachment is to demonstrate a principle and example for lifting heavy objects vertically. It's built with LEGO Education SPIKE Prime parts and could be used in competitions in robotics like FIRST LEGO League/World Robotics Olympiad. It's designed for Luly, small LEGO Education SPIKE Prime competition robot with 3D building instructions. Check the courses in which this attachment is used for more information and tutorials on how to use it.
An attachment designed for Heavy lifting. It's build with LEGO MINDSTORMS Robot Inventor 51515 and it has a gear wheels mechanism that allows you to increase the torque and lift really heavy things. Build the attachment and check out the tutorial. This will teach you one more principle that you could use for FIRST LEGO League competitions.
Third version of a reusable gear attachment. In this scenario a single motor could power two different axles in two different directions. If you use it to accomplish a mission do not forget to send us a video. We would love to see it.
In this video tutorial, we demonstrate how to release the cargo of a mission model. This mission model is an Airplane. We have to push a lever down to release it. We use an active attachment with a gear wheel.
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.
This FRIST LEGO League video tutorial is about he Boccia Share mission from FIRST LEGO League 2020 RePlay competition. In the tutorial we demonstrate how to push on a lever to release a mission model part - in this case a box. You have the choice before the competition to cooperate with the other team and to decide if you are going to do the blue or the red box.
This is an attachment for Kufar - Easy SPIKE Prime out-of-box robot. It is an experiment we did that didn't work out for the FLL 2023-2024 MASTERPIECE field, but is interesting nonetheless. It shows how you can take an out-of-box robot and put a steering mechanism on it.