Catapult Frame - LEGO Mindstorms construction for a frame of a catapult

This frame holds the motor and ev3 brick used in the catapult. The frame is placed on top of the rotating base and thus could be easily rotated. The brick could be both NXT and EV3

This material requires a subscription to one of the following plans:

  • FLLCasts Team Six months
  • FLLCasts Personal A Monthly
  • FLLCasts Personal B One Year
  • FLLCasts Home Subscription
  • FLLCasts School Student One Year
  • FLLCasts School

In order to build the full construction, you'll have to subscribe to FLLCasts.

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  • #203
  • 01 Feb 2015

To construct this you will need

  • LEGO Mindstorms EV3 45544 Education Core
  • LEGO Mindstorms EV3 45560 Education Resource

Bill of materials (Parts list)

How to use the Ultrasonic Sensor with the Catapult built from EV3/NXT (Part 5)

This video lesson shows a very interesting specific example on how to use the LEGO Mindstorms EV3 Ultrasonic Sensor. The sensor detects if the catapult is loaded or if we have just fired an element. At the end of the lesson I also offer an interesting challenge that you could use in your classroom or at home.

Catapult built from LEGO Mindstorms EV3/NXT(Part 4 - EV3 clutch and loading)

Part four of the Catapult series is again about loading the catapult automatically but this time using EV3 brick, motor and sensor. We use a gear system with a medium complexity along with a "standard clutch" available in the LEGO Mindstorms EV3 kits. As a result, at the end of the video, the Catapult loads and fires automatically.

Catapult built from LEGO Mindstorms EV3/NXT (Part 3 - Automatic loading)

Part three of the Catapult series is about loading the catapult automatically. We use a gear system with a medium complexity along with a very interesting "clutch" developed with parts entirely from the LEGO Mindstorms NXT kits. As a result, at the end of the video, the Catapult automatically loads and fires.