Designing and Fabrication of a 360 Degree Flexible Drilling Machine

This project report details the design and fabrication of a 360-degree flexible drilling machine. The student outlines the project background, including characteristics like rotational flexibility and cost reduction, and the objectives developed, such as designing a compact machine and understanding the working process of drilling machines using DC motors and full-wave rectifiers. The report covers the student's responsibilities as a team member, the engineering knowledge applied, and the accomplishments achieved, including motor specifications and design parameters. Furthermore, the report identifies and provides solutions to several issues encountered, such as drill bit design and incorrect equipment selection, and it concludes with a review of the project's overview and the student's contribution to the work.

CE 2.1 Project Information
Name of the project: Designing and Fabrication of 360 Degree Flexible Drilling
Machine
Location of the project: Please fill
Project Duration: Please fill
Organization: Please fill
Role and Designation during the time: Team Member of the Project
CE 2.2 Project Background
CE 2.2.1 Characteristics of the project
The 3600 malleable drilling machine can be referred to as responsible to provide major
benefits to the users such as rotational flexibility, minimization of time, lowering costs, reducing
the total expenses of manufacturing as well as easy usages. This particular drilling machine
creates a specific circular hole in the job or element by effective volume removal within the
metal by drill bit cutting tool. This kind of tool is being used to drill holes of several sizes and of
any other associated and significant operations with the drill bit. During execution of the project,
I have successfully designed and contrived a 3600 drilling machine after considering distinct
specifications of motors. I have even considered a current range between 0.2 AMP until 1.2
AMP. Total speed that was to be considered was maximum of 4000 rpm. The respective power
range undertaken within the specific project was within 2.4watt until 15watt and hence voltage
was 12 V. I even wanted to create the project with extra effectiveness for putting the holes with

high and better precision over the cylindrical shells, block as well as engine head and also for the
purpose of furniture making. Hence, in the project, I had successfully proposed the most compact
design for my 3600 drilling machine after considering each and every technical specification.
CE 2.2.2 Objectives developed for the project
I have maintained few of the most significant and major standards during the execution of
this particular project and for the reason that this type of designing or working parameters were
being followed efficiently. Hence, for the purpose of completing this project and then providing
a perfect design for the 3600 drilling machines and then making it extremely effective and
efficient, I have eventually developed these objectives given below:
 To suggest a detailed as well as compacted design for my 3600 drilling machines project.
 To execute various operations such as spot facing, boring, grinding, lapping, tapping and
various others.
 To properly understand the complete working process of drilling machine after using DC
motor over the full-wave rectifiers.
 To identify and select several vital tools so that I can dismantle, assemble and then hold
the project item.
 To be sure that high accuracy as well as efficiency is enhanced during drilling of metal or
other product.
 To properly help the smaller as well as medium enterprise to reduce their operational
costs by providing them certain cost effective 3600 drilling machines.

Project Supervisor
Team Member (Me)Team Member Team Member
CE 2.2.3 My area of work
Since this was second professional project, I was much experienced than my previous
project and hence I being recruited as the team member in this specific project. Moreover, I did
not face much complexities while completing the tasks. After providing a completed design for
the 3600 drilling machines project, I also have to help my respective fellow team members to
understand the subsequent requirements of project as well as the process or working principles of
drilling machines with significant details. As, I comprised of skills like logical reasoning, the
project supervisor kept confidence upon me to complete the works of project.
CE 2.2.4 Project Group
Figure 1: Team Members Associated with the project
CE 2.2.5 My responsibilities throughout the project
In this particular project of the 3600 drilling machines, I was subsequently assigned to
propose a detailed as well as compact project designing. I even wanted to create the drilling

machines more efficiently in comparison to traditional drilling machine. This perfect and well-
aligned drilling machine needs stronger as well as fixed drill and thus I have utilized respective
fixed drill for low space in drill beds and drill bits. My next subsequent duties involved
providing the cylindrical hole for the needed depth or diameter over metal work piece. Since I
was a team member here, I had the core responsibility for considering and understanding project
constraints. Furthermore, I have also considered every specification of drill chucks such as
15mm length and 7mm diameter.
CE 2.3 Distinctive Activity
CE 2.3.1 Comprehending the Theory of the Project
The major theories of mechanical engineering, which I had considered within the project
were the working process of the drilling machines. This was initiated from the DC motors
through distinctive full-wave rectifiers. In this scenario, I undertook a power source, which was
acknowledged from the rectifier. This flexible arm rotated at the specified 3600 and eventually
moved at any place as soon as that drilling is required to the highest arm length. I had to perform
this drilling for various drilling positions such as up and down as well as rotating mechanisms.
These components of the drilling machine were motors, connecting rods, pulley, bearings, and
screws and even drill bits.

Figure 2: Experimental Set up Diagram of the project
This above provided figure depicts the complete set up for my 3600 drilling machine.
Major equipment of this project included horizontal arm, vertical arm, switch board, roller
bearing, copper wire, base plate, motor, and drill bit, guider and suspension spring.
CE 2.3.2 Engineering knowledge and skills applied in the project
The major short coming, which I had during the project work was lack of problem
solving skill. During project execution, I did not have the ability to effectively solve every
situational problem that has occurred. However, I became eventually successful to use my core
skills or knowledge of mechanical engineering and hence solved all of these problems.
Furthermore, my capability of thinking out of the box was one of the core advantage in this
project.
CE 2.3.3 Accomplishment and Task Performed
I under undertook motor specification such as maximum speed for 4000rpm, range of
current between 0.2 until 1.2AMP, 50Hz frequencies, 12volt voltage, range of power between

2.4 until 15watt and the selected supplying current was DC. Weights of my significant project
machine were nearly 150gm, 3.17mm shaft diameter and of metal net material.
For the designing and other machining parameters, I had undertaken these following
readings from the project:
CE 2.3.4 Identified issues and their solutions
2.3.4.1 Issues
The most important technical difficulty that I have confronted in this work occurred
while project drilling bit designing. I knew it very well that if the drill bits will break, this entire
machine will not be working and thus the respective users will not have the capability of utilizing
that specific machine. Another significant issue, which I had faced was the incorrect equipment
selection. My fellow team member, to whom I have previously provided the core responsibility

of selecting correct equipment, eventually made a completely wrong list of equipment and thus
my project was under stake. The next subsequent problem, which I had confronted in this case
was during designing a respective point angle of my drill bit. However, I had done this mistake
within the portion of designing and hence these pointing angles were not properly designed. The
fourth difficulty, which I have confronted here occurred during vertical arm designing of 3600
drilling machine project.
2.3.4.2 Solutions
Regarding drill bit issue I took the ideology to use twisted drill. It subsequently
minimized the main complications for drill bit designing and thus it ensured that my drill bit will
not get broken in an easy manner. Regarding the second issue I ensured that these entire lists
were being made once again and thus it never creates any issue. Regarding the third distinctive
issue, I had to use my knowledge of mechanical engineering. Moreover, I have also used my
core skills for completely redesigning the drill bit part and thus my issue with point-angle was
being resolved. For the final problem of the vertical arm I took extra time. However with the
help of my supervisor I was able to solve it completely.
CE 2.3.5 Plan to produce creative and innovative work
I had made the significant strategy for producing an ingenious work after application of
mechanical knowledge as well as skills. The horizontal, vertical or the radial movement of arms
of these drilling heads eventually enabled the locating of subsequent drill spindle within any
particular point.

CE 2.4 Project Review
CE 2.4.1 Project Overview
The 3600 drilling machine project was being utilized based on drilling of holes within
various location and movement as well as the operation was completed with ease and extreme
accuracy and efficiency. The specific project of drilling machine was also improvised the total
productivity since it comprised of lowering the entire manufacturing cycle time and total
machining time.
CE 2.4.2 My contribution to work
I had to propose a compact design of 3600 drilling machine for this project. I had also
collected with the entire group of project administration for clearing up of doubts in respect to
project works. Finally, with the definite end goal and setting up of previous project reports, I
organized project meetings and provided introductions on project to my project supervisor.