This document describes the design, testing, and evaluation of a cassava cutting machine. It introduces the problem of inefficient cassava harvesting and presents the objectives to design a machine, test its effectiveness, and gauge farmer satisfaction. The methodology section outlines how the machine was built and tested through trials measuring cutting time and farmer questionnaires. The results found the machine could cut 2,400 cassava pieces in 60 minutes with high levels of farmer satisfaction in using the new technology.

1.  INTRODUCTION
 LITERATURE REVIEW
 METHODOLOGY
 RESULTS
Cassava Cutting MachineCassava Cutting Machine

2. 
Most of farmer in Loeng Nok Tha district are
cassava farmers.
INTRODUCTIONINTRODUCTION

The cassava products are not enough for industry.

The cassavas are lost by mistaken cutting.

3. Objectives of the StudyObjectives of the Study

To design and build cassava cutting machine.

To study the effectiveness of cassava cutting machine.

To investigate farmers' satisfaction on cassava cutting
machine.

4. LimitationLimitation

Using for cutting cassava.

Studying only from October 15 – November 1, 2014.

Trying out in farm at Loeng Nok Tha district.

Trying out by the farmers from Loeng Nok Tha district.

5. Literature ReviewLiterature Review

Basic of motor

Basic of rotating circular saw

Basic of transmission belt

Principle in cassava farming

Categories of cassava

6. METHODOLOGYMETHODOLOGY

Designed and built the machine.

Tried out for the working effectiveness.

Collected satisfaction by questionnaires

7. METHODOLOGYMETHODOLOGY
InstrumentInstrument
Satisfaction QuestionnaireSatisfaction Questionnaire
Experiment

8. RESULTS
Table 1: Straight angle
Table 2: Askew angle

Working effectiveness
Be able to cut the cassava in the same results by time and quantity
of 90°, 30° and 45° angles for 2,400 pieces per 60 minutes.

Satisfaction in using machine

9. RESULTS

Satisfaction in using machine
The total level of satisfaction is at "high" level.
Straight 90
Askew 30
Askew 45
0 500 1000 1500 2000 2500
Time(sec.)
Quantity
Time(min.)
Quantity
Figure 1: The same results by time and quantity

10. THANK YOU FOR YOUR ATTENTION