These are all the robot building instructions. By visiting each building instruction you could see the Tutorials and Courses and Lessons in which it is used.
We use this attachment to demonstrate the principle of an active attachment. This is an attachment activated from the motor. It has one level attached to it. It could be reused. The attachment transfers power from the motor to the end of the lever and we can accomplish missions like the Power Switch mission from the FLLCasts Off-season mission models.
This attachment demonstrates pushing and pulling with a circular motion. It is useful for FIRST LEGO League competitions where you can grad a mission model and bring it back to base or push/pull on a lever.
This is a FIRST LEGO League robot attachment for the Step Counter mission from the 2020 RePlay competition. It is a pinless attachment that is optional and could be used on the robot or we can accomplish the mission without the attachment. It is better to use the attachment as this will give us a more smooth and accurate movement of the robot.