2
could cause the convict to lose their limbs and because of that, the need of prosthetic foot is becoming more important to a society. The research of this prosthetic foot is
focusing in improving the function of the prosthetic limbs to be more efficient and this project is to design and develop a compounded three-link manipulator applied as
prosthetic foot. It focuses on the mechanism design and the expectation on precise mechanical on all parts when the mechanism high M., Renfrow, 2005.
1.2 Objective
This project is carried out with the following objectives. a To design the structure for the prosthetic foot that will be assembled at the actual
foot frame. b To make mechanism development of a compounded three link manipulator applied
as prosthetic foot.
1.3 Project aims
The aim of this project are designing and developing a compounded three-link manipulator applied as prosthetic foot with precise mechanical machining on all parts
where the design is expected can function properly.
3
1.4 Scopes
The scopes for this project are as below: a This project will focus on the mechanism development of a compounded three-link
manipulator with precise mechanical machining. b To fabricate and assemble the prosthetic foot with precise mechanical machining.
4
1.5 Problem statement
Nowadays, the existing prosthetic foot is expensive and not comfortable with the average class users. It is because the cost of developing material is so expensive. In
addition, the function of existing prosthetic foot does not function properly and just refers the basic concept of important point of human foot. Because of that, the users do
not feel comfortable when using them. The suitable design and material must be eminent and considered when developing the high quality prosthetic foot.
As known, users always choose to posses the best product at the lowest price for their prosthetic limbs. Originally prosthetic were simply replacement for missing limbs, but
now they can help people who have extremely active lifestyles. Such improvements have been made possible because of the new surgical techniques, the advancement of
components for making prosthetics, and creative engineering ideas. Many researches about the material and concept must be considered to get the high quality design. The
cost factor is one of important thing that must be considered to make the new prosthetic foot suitable with all class because not all of the users who lost their limbs are from rich
background. Besides that, the shape and the conceptual design of existing products are not suitable
with all users. This is because, certain products have a design that can cause injuries to user like blister to the skin. Other than that, the materials used are also heavy in their
weights that make the users feel uncomfortable.
5
CHAPTER 2
LITERATURE REVIEW
2.1 Introduction