Kiril Mitov's most favourite attachment. To quote him "I had a really great fun building this attachment and recording the videos for it".
It's an attachment with a Rubber band and a Flywheel and a Gear Wheel and a Worm Gear. So much knowledge in just one small attachment. The goal of the attachment is to be able to have an active attachment without actually having a motor. So you can place that attachment and it will do the work for you instead of using a motor to power it.
Build with LEGO Mindstorms EV3 set.
When placing the rubber bands check out the tutorials
Placing the white rubber band is shown at https://www.fllcasts.com/tutorials/105-rubber-band-attachment-with-a-flywheel-solving-fll-2014-search-engine-part-2 at around 05:40.
Placing the red rubber band is shown at https://www.fllcasts.com/tutorials/104-rubber-band-attachment-with-a-flywheel-solving-fll-2014-search-engine-part-1
This material requires a subscription to one of the following plans:
- FLLCasts Team Six months
- FLLCasts Personal B One Year
- FLLCasts School Student One Year
- FLLCasts School
Building instructions delivered to your device by 3DAssemblyInstructions.com
- 13 Sep 2015
- LEGO MINDSTORMS
- EV3, Rubber band, FLL 2014, FLL, Flywheel, Physics, Attachments, Construction, Worm gears
- K.Mitov, D.Staykov
To construct this you will need
- LEGO Mindstorms EV3 45544 Education Core
- LEGO Mindstorms EV3 45560 Education Resource
Bill of materials (Parts list)
In this tutorial of the series we would get into more details on how the flywheel works, what's its purpose and how the whole attachment is triggered with the first rubber band.
The third part of the series the goal is to extend the robot attachment so that we could solve the second part of the FIRST LEGO League World Class mission challenge - to take the loop.
The attachment is now so advanced that we can do two tasks at once with it in order to solve the FIRST LEGO League 2014 World Class Search Engine Mission.
Let's try to integrate more of the things we have learned into a single attachment. One that could accumulate energy, conserve it and use it at the appropriate time. All this because of a Rubber Band and a Flywheel - and if you don't know what a flywheel is you should definitely watch this videos