Project showcase
3D Printed Ball Mill

3D Printed Ball Mill © LGPL

This ball mill was made for grinding sand and cleaning objects like rusty bolts.

  • 465 views
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  • 3 respects

Components and supplies

PLEX Controller
PLEX uses the Arduino UNO bootloader. Can use an Arduino UNO instead.
×1
SparkFun Photo Interrupter
×1
Set screw profile pic ri8iiwvrha
OpenBuilds Set Screw
×1
Ballbearing625 g w 6  50863 1509730401 xcqaerog9u
OpenBuilds Ball Bearing – 625 2RS 5x16x5
×4
12V 688RPM 9Kg.cm geared DC motor
×1
6mm-10mm ball bearings
×100
A000066 iso both
Arduino UNO & Genuino UNO
This is instead of the PLEX controller.
×1

Apps and online services

About this project

Introduction

This ball mill was made for grinding sand and cleaning objects like rusty bolts. It works but takes a very long time to grind sand down, this is because of the size of the balls are too small. Getting larger balls will help.

Some professionals that design and manufacture mill for industry helped in the design of the lifter and the correct speed for milling. The professionals were interested in how long it would take for the lining of the mill to be worn out. This is yet to be tested.

The parts can be found here: https://www.thingiverse.com/thing:2713357

See more what I have done: http://tinkersprojects.com/

Circuit and program:

https://github.com/tinkersprojects/Ball-Mill

Operation:

After powering the mill with 12V DC power, settings can be seen/changed using the LCD and can be altered using the 3 buttons (up, down and enter). Speed and duration are the 2 settings that can be set to control the mill. While the mill is in operation, the LCD will display the current speed and the time left of milling. By pressing the enter button, the mill will stop.

Code

Custom parts and enclosures

3D printed ball mill parts

Schematics

Arduino UNO
Pcb ball mill 2 eeneolire7

Comments

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