Simple Double Bumper Construction Guide

This is a simplified version of the double bumper from the LEGO Constructopedia that comes with the Mindstorms kit. The aim is to replace specialized parts with simpler ones.

Step 1

Start by picking out: Sandwich these together:

and place a touch sensor on both ends:

Step 2

Take: Slot a friction connector peg and an axle into the angle beam, and attach a cam to the axle:


Step 3

Now take: as shown:

and assemble them as laid out:

Step 4

With: Combine all the assemblies from the previous steps:

Step 5

Complete, using:

Parts required