Mechatronics Faculty of Engineering Diploma in Mechanical Engineering DESIGN REPORT MECHANICAL

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Mechatronics
Faculty of Engineering
Diploma in Mechanical Engineering

DESIGN REPORT

MECHANICAL TIME-WRITING CLOCK
A.K.A PLOTCLOCK

Mechanical Design Engineering
MIO220S

Amoraal CM Student Number: 211307831
Barter S Student Number: 212114190
Bester PJ Student Number: 212005952
Booysen FE Student Number: 211271411

Dept. Mechanical Engineering (Mechatronics)
Lecturer Name: Dr. I, Okoloko
Semester & Year: Semester 1 - 2014

SYNOPSIS
Due to a lack of interesting mechatronics display items in many engineering companies and hobbyists shops, we found an existing design that matched all these requirements: A mechanical time writing clock (a.k.a. “Plotclock”). Our group decided to figure out exactly how it worked, by
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This gave rise to the popular microcontroller known as “Arduino” which is used in many electronic design projects today. It works on the C-language and its software and components are open source
Since James Watt’s Steam Engine Governor, closed-loop feedback control systems have evolved into the development of the servo motor [1]. Small servo motors can now be purchased cheaply and be controlled using Arduino. Johannes Heberlein came up with the idea to combine these components into making a mechanical clock that writes out time, a.k.a. the “Plotclock”. This design displays the all aspects of mechatronics and makes an interesting design for display and entertainment purposes.

2. DEFINITION OF PROBLEM
2.1. PROBLEM STATEMENT
A company wants to display their combined mechanical and programming skills to their customers in a waiting room of their different branches.

The company would like the designers to help them with a cheap and interesting display involving mechanics and electronics. This design must be programmable using C programming with an Arduino as a control unit and an external power supply to provide voltage to components.

2.2. REQUIREMENTS
It needs to be unique and eye-catching.
It should be able work up to 8 hours a day.
It needs to inexpensive so it can be easily manufactured as a display item as to not influence the cash flow of the business.
It

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