Crappy Active Attachment For SUV Box Robot

In this attachment two knob wheels "(32072 ) Technic Gear 4 Knob" engage at 90 degrees angle. One of the knob wheels is a part of the robot and the other is a part of a pinless active attachment. The purpose of this attachment is to demonstrate How NOT to build attachments. 

Build the attachment and experiment. See for yourself how it "jumps" up and down when the knob wheels are rotating and you hold the lever by hand. 

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

  • FLLCasts Personal B One Year
  • FLLCasts Team Six months
  • FLLCasts School Student One Year
  • FLLCasts School

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  • #559
  • 24 Oct 2018

To construct this you will need

  • LEGO Mindstorms EV3 45544 Education Core

Bill of materials (Parts list)

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[How NOT To] Build An Active Attachment For SUV Box Robot

The video shows why you should not build attachments such as "Crappy Active Attachment For SUV Box Robot". In the video one can see how the knob gear wheels start "jumping", once a force is applied to the lever. 

Courses and lessons with this Material

This Material is used in the following courses and lessons

Image for SUV Box Robot for Robotics Competitions
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Image for Robot Attachments
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  • 3d_rotation 5
Image for FLLCasts Off-season Challenge with LEGO Mindstorms EV3
  • 23
  • 34:03
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Image for (In development) How to design an active attachment
  • 4
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  • 12
  • 3d_rotation 4