Difference between revisions of "Dynamic Motor and Prop Balancer"

Revision as of 19:31, 2 November 2017

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© Mark Qvale - November, 2017

Contents 1 Introduction 2 Parts 2.1 Purchase Parts 2.2 Make Parts 2.3 My Build 2.3.1 IR Photo-sensor Mount 2.3.2 Cushion Base 2.3.3 Balance Platform 2.4 Wiring 3 Acknowledgements 4 See Also
	A new tool!

Introduction

This project was actually done some years ago by some great posters on RCGroups and DoItYourselfDrones. Please see the Acknowledgements section at the bottom of this page. You can (& must!) read the original threads at these two links:

• RCGroups Link

• DoItYourselfDrones

Basically, this is a dynamic balancer for motors and props that can be built for under $100. In the original write-ups there are two versions of the control board and firmware but this build only covers the version that uses the Teensy micro-controller.

Parts

Purchase Parts

• Teensy USB Board, Version 3.2
• 3-Axis ADXL345 Digital Acceleration Module
• QEE123 - Plastic Infrared Light Emitting Diode
• QSE159 - Silicon Photosensor
• 300g Gimbal cushions
• 56 ohm 1/4 watt resistor
• 100 ohm 1/4 watt resistor
• 10K ohm 1/4 watt resistor
• Standard Red LED
• 50mm x 60mm Hobby Board
• Pin Headers
  

Make Parts

• Photo Sensor mount
• Cushion Bases
• Balance platform
• Motor mount plate
• Teensy control board
• Wood base

My Build

IR Photo-sensor Mount

Cushion Base

Balance Platform

Wiring

The complete wiring diagram with Adafruit ADXL345

My control board

My control board wiring (top view)

Acknowledgements

See Also

TBA