Fiber Winding CNC

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Fiber Winding CNC

• By Somnang Rom

2
Background

• The main focus of this project is to design and
  create a small-scale fiber winding machine to
  produce composite structures
• It will serve as a educational tool in which the
  materials science classes can explore the
  fundamental of how composite materials are made.
• Existing fiber winding processing systems
  requires continuous fibers. The winding pitch on
  the mandrel maybe be controlled to achieve
  desired patterns.

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Solutions

• The Fiber Winding CNC Machine will use existing
  CNC software to control the motors speed and
  winding patterns.
• The system will process cylindrical shape and
  the working area are approximately 30 x 12 x
  12

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System Overview
5
Top view
4
6
1
AC power
2
7
3
14
Motor controller
10
8
11
G-code
9
12
13
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Mechanical Designs
12
12.125
24
Side view
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Fiber winding Front View
Front view
X axis
Z axis
Y axis
37.5
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Fiber winding Isometric view
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Mathematical Analysis
Torque requirements
W
M
Torque of lead crew

• In our case
• W10lb
• P.125in
• e.4
• T510 oz-in

Torque(2.55W)/Pe (Oz-in)

• Where
• Wweight in lbs
• P screw pitch
• eefficiency for lead screw .4

(T2.66lb-ft)
Mandrel
Running at 350 rpm for the mandrel which is1/5
of the motor rating
spool
(5252HP)/rpm
TMandrel
fiber
HP1/3 rpm 1750 motor rate
Epoxy bath
T1lb-ft
M
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Electrical

• ---Custom power supply design Hand drawn in the
  composition booklet
• --DB 25 breakout cable schematic are not
  available.
• ----Manufacture design US digital encoder
• Power supply Red wire 5v, and black are ground
• ---Manufacture design servo motor controller.
  Schematic are not available

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Electrical system overview
Y axis
X axis
Chassis GND
Input data
Input data
Chassis GND
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Software
Typical PM servo motor Controller Overview
DB25 breakout cable
Servo motor controller
step
pc count
dir
P
D/A
H Bridge
I
Encoder

• Master 5 CNC

D
motor
feedback
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Bill Of materials
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Flow chart of motor controller
Program system overview
PC step/ dir
Main
ISR feedback
ISR off
count
?
?
Dec ctr.
Incr. ctr.
comp. motor count
Dec ctr.
Incr. ctr.
mccw
end
mcw
end
motor off
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Fiber Winding CNC schedule
Fall
Spring
Existing technology
using Master5CNC
Program HC08
Power supply
Determine speed and winding pattern
Selecting motor/ drawing whole chassis
Complete drawing and design chassis
Making last minute changes and writing web site
demonstration
Somnang Rom
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Question?