The document describes the design and fabrication of an intelligent chalk wipe system. The objectives were to design a low-cost, user-friendly blackboard cleaner machine that reduces the time and effort required for cleaning. The methodology involved using a motor to drive the left and right movement of a cross screw threaded rod to move a wiping system vertically along the blackboard. A sensor detects the right end position and signals the motor to return the wiper. The design aims to automate blackboard cleaning and reduce exposure to chalk dust for teachers and students.

1. DESIGN AND FABRICATION OF INTELLIGENT
CHALK WIPE SYSTEM
By
Deepak kumar Vishwakarma
Branch: Mechanical Engineering
; Year-2019-2020
GIFT 1

2. CONTENTS
Sl. No. Topic Slide No
1 Reason for choosing the project 3
2 Literature review 4
3 Objective 5
4 Relevance of the project 6
5 Methodology 7-8
6 photographs of Materials 9-11
7 Photographs during project 12-16
8 Lab equipment and testing facility 17
9 Difficulty faced 18
10 Conclusion 19
11 Reference 20
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3. Reason for Choosing the Project
• Allow the cleaner to stay away from the board’s proximity, effectively reduce the
risks from chalk dust
• Increase the cleaning surface to reduce the amount of time and work required to
clean the board
• Optimize the quality of cleaning process, removing chalk dust more effectively.
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4. Literature Review
• S.Joshibaamali , K.Geetha Priya [1] has explained that the machine can operate in
three selectable operatable modes. In the first mode, it cleans the left side of the
board. In the second mode it cleans the right side of the board. In the third mode it
cleans the whole area of the board. The machine uses two stepper motors to move
duster in horizontal (x-axis) and vertical (y-axis) direction.
• Mr. Sunil R. [2] has explained in their paper that the design and principles of
sliding type wipe mechanism and also carried out the implementation and
experimentation for motion analysis.
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5. Objectives
• To design and fabricate a low cost and user friendly blackboard cleaner machine.
• To analyze the performance of blackboard cleaner machine.
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6. RELEVANCE OF THE PROJECT
• To reduce the work and time required to erase the blackboard so as to ease the
problems of teachers as well as students.
• Automatic blackboard dusters are made so as to ease the tedious job of erasing
blackboards by teachers or students.
• Chalk dust or the marker ink may prove hazardous to health to both the teacher as
well as student. So to reduce such problems Automatic Blackboard dusters are one
of the alternatives.
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7. Methodology
• Motor drives the left and right movement of cross screw threaded rod and drives the
vertical movement of slider(wipe system) to rub the blackboard surface for cleaning
by moving the wipe system along the screwed rod together.
• The sensor should be fitted at right most of the blackboard (which has been
attached to the box) to sense the right end position and signal passed to return the
wipe system along the screw threaded rod in original position. The process is
carried out as follows: The power of screw threaded rod comes from the motor , the
screw threaded rod transfers the power. Motor forward and reverse rotation, drives
the screw threaded rod forward or back movement. For the sensor we add the tag
that will be help the sensor to sense the black board
• Motor forward and reverse rotation, at the same time drives the wipe mechanism.
The method is able to reach the special position, and then eraser cleans the
blackboard and then sensor at the end sense the position and cleans the blackboard
in second stroke.
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8. Methods (Contd…)
• Activating the rfid (radio frequency identification) module which works on the
principle of radio frequency generated from the rfid reader which then switches on
the relay switch which in turn activates the optical sensor.
• After the written of chalk is identified the sensor switch another relay switch which
passes its command to the motor.
• Along with the wipe mechanism we have installed a 1000watt vaccum cleaner
which sucks all the dust particles from the board and thus keeps our teachers away
from the toxic dust particles making it useful.
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9. Photograph of materials
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Rfid module IR sensor
Shop from where we bought mechanical items

10. Photograph (Contd…)
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Stepper motor
Green board
vacuum cleaner

11. Photograph (Contd…)
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Pulley and rope
Nuts
Pillow block
ball bearing
Screw rod

12. Lab, Equipment, Testing facility
The equipments which will be necessary to check the overall efficiency will just require
simple measuring instruments such as
• Tachometer
Design calculation for gear: -
• Speed of gear
• Velocity ratio
• Teeth of pinion
Design calculation of motor:-
• Torque of motor
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13. Difficulty faced
• In our project at first we faced the difficulty on the sensor part for sensing the black
board therefore we have added the tag system that will help the sensor to sense the
black board when is needed to work.
• Second difficulty comes when we finish the assembly of the all parts and check the
function of project then the motor will be not give the sufficient speed for drive
duster there for we order the new motor for exchange that.
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14. Conclusion
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• Finally we have completed the project work as per the given schedule and we are
satisfied on the working of our project model.
• In new era of technology, people want something new in their life. They want every
single thing they look in front of their life look sophisticated. People want
something that can improve their lifestyle and help them do their job by use of
robot or machine.
• The development of machine and robot is nowadays quite popular and faster in
marketing. So to help and give benefit to humankind the research and development
of Automatic Duster Machine is an alternative machine that can help lecturer,
teacher and student to keep their duty clean a black board by using this machine.

15. Reference
[1]. S.Joshibaamali And K.Geetha Priya,’ Automatic Duster Machine’, International
Journal Of Emerging Technology In Computer Science & Electronics (IJETCSE)
ISSN: 0976-1353 Volume 13 Issue 1 – MARCH 2015.
[2]. Mr. Sunil R. Kewate, Mr.Vivek R.Gandhewar, Mr. Swapnil V. Thorat, Mr.Hitesh R.
Pant, ‘Development of Intelligent Type Design to escape the chalk dust from the
duster eraser used for classroom blackboard in Schools/Colleges’, IOSR Journal of
Mechanical and Civil Engineering (IOSR-JMCE) e-ISSN: 2278- 1684, p-ISSN:
2320-334X PP 32-36
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16. GIFT 16
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17. GIFT 17
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