Johnson Scorpion Fishing Reel - Revision history

EricMetcalf at 20:10, 14 February 2008

2008-02-14T20:10:58Z

2008-02-05T20:24:38Z

CAD Drawings

2008-02-05T20:17:44Z

CAD Drawings

2008-02-05T20:11:09Z

2008-02-05T20:10:54Z

Parts

2008-02-05T20:09:02Z

Parts

2008-02-05T20:08:21Z

Parts

2008-02-05T20:07:24Z

Engineering Specifications

2008-02-05T20:03:07Z

2008-02-05T20:00:59Z

CAD Drawings

@@ Line 1: / Line 1: @@
 [[Image:reel1.jpg |right|thumb|400px]]
+Eric Metcalf,
 ==Product Description==

@@ Line 216: / Line 216: @@
 ! 1
 | align="center"|What Decisions were made in the design of this component/module?
-| align="center"|stuff
+| align="center"|When the yoke wheel was made, the diameter, number of teeth, diameter of the yoke notch and length of the yoke notch needed to be specified.  The material was also selected to maximize performance under stress with minimal cost.
 |-
 ! 2
 | align="center"|What are the critical features and dimensions?
-| align="center"|stuff
+| align="center"|The critical features are the diameter of the wheel, number of teeth, and the diameter and length of the yoke notch.
 |-
 ! 3
 | align="center"|What kind of loading do we expect to be on the component?
-| align="center"|stuff
+| align="center"|There will be loading in the tangential and normal directions on the teeth, and loading in the shear direction in the yoke notch.
 |-
 ! 4
 | align="center"|What measures can we use to evaluate performance?
-| align="center"|stuff
+| align="center"|Performance can be evaluated by spinning the wheel with a resistance applied to the teeth to determine their stresses.  The factor of safety for the yoke notch can be determined through a static analysis.
 |}

@@ Line 169: / Line 169: @@
 ! 1
 | align="center"|What Decisions were made in the design of this component/module?
-| align="center"|stuff
+| align="center"|When the wheel was made, the gear ratios, number of teeth, teeth angles and spacing between gears were specified.  The type of material was selected in order to maximize performance under normal operating stresses with minimal cost.
 |-
 ! 2
 | align="center"|What are the critical features and dimensions?
-| align="center"|stuff
+| align="center"|The critical features are the spacing between the gears so that each connection remains in contact at all times.  The number of teeth also had to be specified to match the teeth of the other gears the wheel comes in contact with.
 |-
 ! 3
 | align="center"|What kind of loading do we expect to be on the component?
-| align="center"|stuff
+| align="center"|Loading will be applied in the tangential and normal directions from resistances of the gears the wheel comes in contact with.
 |-
 ! 4
 | align="center"|What measures can we use to evaluate performance?
-| align="center"|stuff
+| align="center"|Performance can be evaluated by connecting the wheel to matching gears and apply an opposing force while the power wheel is turned by the handle.  The stress in the teeth can then be determined and the safety factor computed.
 |}

@@ Line 191: / Line 191: @@
 ! 1
 | align="center"|What Decisions were made in the design of this component/module?
-| align="center"|stuff
+| align="center"|When creating the shaft, dimensions on the length of the shaft, diameter of the shaft, length of the groove, depth of the groove, and the size of the scotch yoke connector had to be determined.  Another decision was on the type of material.  The company needed a material that will withstand forces applied by the user and also corrosion resistance to the saltwater in case of the shell being penetrated.
 |-
 ! 2
 | align="center"|What are the critical features and dimensions?
-| align="center"|stuff
+| align="center"|The critical dimension is the groove for which the scotch yoke moves.  The critical feature is that this whole operation of the reel is very smooth and requires little force to begin movement.
 |-
 ! 3
 | align="center"|What kind of loading do we expect to be on the component?
-| align="center"|stuff
+| align="center"|The shaft has axial torques coming from movement of the fishing line, and shear on the screw from the same source.
 |-
 ! 4
 | align="center"|What measures can we use to evaluate performance?
-| align="center"|stuff
+| align="center"|For destructive testing, a hardness test could be done along with a tensile test until fracture.  For nondestructive, test for surface roughness using Ultrasonic.
 |}

@@ Line 49: / Line 49: @@
 {| border="1" align="center"
 |+ '''Table 1: Scorpion Fishing Reel Bill of Materials'''
-! width="50"|Part # !! width="100"|Part Name !! width="50"| Category !! width="120"| Function !! width="145"| Material !! width="100"| Picture
+! width="50"|Part # !! width="100"|Part Name !! width="50"|Category !! width="120"| Function !! width="145"| Material !! width="100"| Picture
 |-
 ! 1

@@ Line 27: / Line 27: @@
 ==Engineering Specifications==
-. Must have reel large enough to fit fishing lines. (in)
+. Must have reel large enough to fit fishing lines (in)
-. Steps to assemble to rod first time. (# of steps)
+. Steps to attach to rod first time (# of steps)
-. Time to assemble to rod first time. (s)
+. Time to attach to rod first time (s)
 . Fatigue life (# cycles until failure)
@@ Line 37: / Line 37: @@
 . Color availability (# of colors)
-. Steps to change line. (# of steps)
+. Steps to change line (# of steps)
-. Time to change line.  (s)
+. Time to change line  (s)
-. Ability to fit rods.  (in)
+. Ability to fit rods  (% of modern rod sizes fit)
 ==Parts==

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 | align="center"|Plastic
 | [[Image:mechcasing.jpg  |center|thumb|50px]]
-|-
+|}