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.
- 19 Jul 2019
These are some of the reasons why:
- When you use only "(32072 ) Technic Gear 4 Knob" the attachment will start to jump when it is rotated in some directions. This happens according to the forces in the knobs. That leads us to the next reason why you should not to build attachments in this way.
- You have to remove the attachment "jumping". This makes the attachment bigger, harder to attach and time consuming to design and build.
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.
Courses and lessons with this Tutorial
This Tutorial is used in the following courses and lessons