capstone phase 2_online overview-3-axis_machine-2 final powerpoint(2)
TRANSCRIPT
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3 Axis Motorized PIC Machine
4/20/11
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Introduction
• Computer Numerical Controlled (CNC) Milling machines aresome of the most fascinating products of the manufacturingindustry.
• The 3-Axis Motorized PIC Machine is similar to the CNCMilling machine in every aspect except that it is controlled bya programmable instruction chip (PIC) instead of a userinterface.
• 3-axis motorized apparatus (using bipolar stepper motors), acontroller (using microchips and pushbuttons), and a liquidcrystal display (LCD).
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Abstract Highlights
Similar to a computer numerical controlled (CNC) machine
Controlled by a programmable instruction chip (PIC)
The main goal of this project is to build the motorized stages and control them by using a microchip 16f684.
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Figure. 11
Work Breakdown Structure
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Assignment Matrix
Team Member
Assignment Discipline
Briana
McCall
Responsible for the aspects of the LCD Display as well as the
electrical components.
EET
Raymond
Bryant
Responsible for the electrical components& programming of
the stepper motor.
EET
Roger
Smith
Responsible for the mechanical components & design of the
3-Axis Motorized PIC machine.
MET
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Final Design
3-Axis
Cutting
MachineStepper Motor 3
Z-Axis
Controls movement of
the dremel motor; up
and down.
Stepper Motor 2
Y-Axis
Controls movement of
the stage; in and out.
Stepper Motor 1
X- Axis
Controls movement of
the stage; left and right.
Inputs from the
pushbuttons are sent to
the PIC16f684 and
implemented in the
stepper motors.
Receive inputs from
pushbuttons and carry
them out in the stepper
motors.
PIC16f684 Continuously run of the
desired stepper motor
until a pushbutton is
released.
LCD &
Pushbuttons Once information is
sent to the stepper
motors it will also
display stepper motor
action in the LCD
Figure. 1
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3-Axis Motorized PIC Machine
Main components
• 3 stepper motors, Dremel, LCD, 4 microchips (PIC16f684)
Dremel motor tool does the cutting
LCD & pushbuttons control parameters of the stepper motor
4 Microchips (16f684) control the entire operation, such as receiving inputs from the
LCD and translating it to the stepper motors.
• From a top isometric prospective
• 2 motors will control the stage (up & down, and left & right),
• The other control the motor tool (in & out)
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Construction
Making bearing fixtures
Programming the LCD
Mounting stepper motorson the axes
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Construction (cont.)
Programming the stepper motor
Repairing bearing fixtures on the Z-axis
Drilling holes in aluminum rails
Troubleshooting of the h-bridge circuit
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Construction (cont.)
Designing the 3-Axis Motorized PIC Machine
Measuring the Z-Axis rails
Drilling holes into aluminum rails
Mounting the Z-Axis stage
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Construction (cont.)
Foundation
X-& Y- Axis Stages
Aligning all axes
Mounting Dremel tool
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Assembly Drawing
Fig.2 Isometric View of the 3-Axis Motorized PIC Machine
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Fig. 3 Exploded View of the 3-Axis Motorized PIC Machine
Exploded View With Materials
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Front Views
Figure 4. CAD & Solid Edge Drawings in Front View.
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Side Views
Figure 5. Solid Edge & CAD drawings in Side View
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Top Views
Figure. 6 CAD & Solid Edge Drawings in Top View
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Exploded View
Figure. 7 Solid Edge Drawing in Exploded View
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Figure. 8 Detail View Showing How the stage is mounted on the X-Axis
X-Axis View
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Y-Axis View
Figure. 9 Detail View Showing How the stage is mounted on the Y-Axis
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Z -Axis View
Figure. 10 Detail View Showing How the Dremel Tool is Mounted.
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LCD Schematic
Figure. 12
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Stepper Motor Schematic
Figure. 13
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LCD
Flo
w C
hart
Figure. 14
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Step
per M
oto
rF
low
Ch
art
Figure. 15
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Actual Project
Figure. 16
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Success Criteria & Factors
• Teamwork makes a project works.
• Use Time wisely.
RisksDesign Issues Resulting from Materials
Size of the Machine
Longevity of the motor
Availability of the parts
Time & Deadline
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Future Goals
Utilize optical sensors for human safety
Operate using G-Code and a computer interface
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It has been a pleasure learning from you.Email address: [email protected]