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invention

HandHeld Auto Hyper Knocker using MakeBlock Rails

by crusssmith

Published on April 12, 2015

To demonstrate how to use LittleBits with the MakeBlock parts system, I built this pulsing servo to use as a door knocker.  It goes knock knock knock:  slower, slow, normal, quick, hurried, fast, and hyper.  You want someone to come running to answer a door, this is the tool.  I was thinking about some type of sandpaper on the disc for a percussion instrument, but a handheld knocker sounded so right.  So, here's a USB battery, usb power, button, EL wire, oscillator (square wave), and servo bits all strapped onto a MakeBlock frame.  The MakeBlock rails when assembled three wide hold (most) littlebits modules perfectly.  Exceptions being: modules with input/outputs on top/bottom.
I mounted more MakeBlock parts so it stands up.
As I was knocking around, I figured it could be used for more fun.     

How To Make It

STEP 1

Place three MakeBlock rails together with screws or zip-ties.

STEP 2

Place LittleBits modules into rails. Secure with rubber bands.

STEP 3

Attach flat plate to hold forward servo rails onto handheld rails.

STEP 4

Screw servo into rails, mount plate and arm. Big red knob optional..

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