Session #: 18 Design Study: New Track Geometry
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Transcript of Session #: 18 Design Study: New Track Geometry
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Session #: 18
Design Study: New Track Geometry
2003 BricksWest
Carlsbad, California
Session #: 18Presenter: Ben Fleskes
Sunday, Feb. 16, 2003 @ 9AM
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Ben Fleskes: Design Study: New Track Geometry
Overview
• Wish List
• 9v LEGO train track mods
• Final suggestions
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Ben Fleskes: Design Study: New Track Geometry
New Track Geometry Wish List
• Flexible track length
• Improved switch geometry
• More radius options
• Different crossings
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Ben Fleskes: Design Study: New Track Geometry
Criteria
• Compatible with existing track– Maintain tie spacing ~ two studs between ties– 16 stud offset
• Durable
• Play well together – with other pieces
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Ben Fleskes: Design Study: New Track Geometry
One Possible Answer:Track Mods
40S R 22.5 deg curve 40S R 11.25 deg curve
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Ben Fleskes: Design Study: New Track Geometry
Or:
16S straight 4.35S straight
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Ben Fleskes: Design Study: New Track Geometry
Why 4.35?
4.35S straight
40S R 11.25 deg curve
40S R 33.75 deg curve+
+
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Ben Fleskes: Design Study: New Track Geometry
Pretty darn close
15.9 S
<0.1 S
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Ben Fleskes: Design Study: New Track Geometry
Making it happen…
• .080” x 080” polystyrene
• Soldering iron• Solder• MEK (glue)• Hack saw• Exacto knife• Needle files• Flat file
What you need:
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Ben Fleskes: Design Study: New Track Geometry
Step 1: Start with a regular curve track
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Ben Fleskes: Design Study: New Track Geometry
Step 2: Cut it apart
Hint: A Dremel tool with a cut-off wheel works really well.
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Ben Fleskes: Design Study: New Track Geometry
Step 3: Trim inside flanges
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Ben Fleskes: Design Study: New Track Geometry
Step 4: Stage for assembly
Note: the track with yellow bricks provides alignment
0.080” x 0.080” Polystyrene
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Ben Fleskes: Design Study: New Track Geometry
Step 5: Begin Assembly
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Ben Fleskes: Design Study: New Track Geometry
Step 6: Final assembly
Hint: use a small blunt object to press the polystyrene firmly in place
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Ben Fleskes: Design Study: New Track Geometry
Step 7: Glue Danger! MEK
fumes are harmful! Follow all recommended precautions!
MEK: Methyl Ethyl Ketone
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Ben Fleskes: Design Study: New Track Geometry
Step 8: Solder
Hint: solder top and sides of each rail
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Ben Fleskes: Design Study: New Track Geometry
Step 9: File
• File the excess solder away
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Ben Fleskes: Design Study: New Track Geometry
Step 10: Done
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Ben Fleskes: Design Study: New Track Geometry
Something a little more Complicated
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Ben Fleskes: Design Study: New Track Geometry
Switch Mod 1: Cut the track
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Ben Fleskes: Design Study: New Track Geometry
Switch Mod 2: Prep for assembly
Hint: the remnant from a switch left can be used to modify a switch right.
End of a curve track
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Ben Fleskes: Design Study: New Track Geometry
Switch Mod 3: Reinforce and glue
Hint: Use extra curve tracks to keep pieces aligned.
Hint: Be careful not to glue the tracks together
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Ben Fleskes: Design Study: New Track Geometry
Switch Mod 4: Solder and File
Hint: Be careful not to dislodge metal rail when soldering
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Ben Fleskes: Design Study: New Track Geometry
A sample layout
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Ben Fleskes: Design Study: New Track Geometry
Another option
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Ben Fleskes: Design Study: New Track Geometry
Or a real layout
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Ben Fleskes: Design Study: New Track Geometry
What about curves?40
S R
22.
5 d
eg c
urv
e
56S
R 2
2.5
deg
cu
rve
72S
R 1
5 d
eg c
urv
e
88S
R 1
5 d
eg c
urv
e
104S
R 1
1.25
deg
cu
rve
120S
R 1
1.25
deg
cu
rve
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Ben Fleskes: Design Study: New Track Geometry
What about a crossing?
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Ben Fleskes: Design Study: New Track Geometry
Summary
• Track mods can give you– Any length track you want– Very flexible switch track
• Track mods can’t give you– Different radius tracks– No clear solution for another crossing