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Knex plexi 1
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Ball Bearing Knex Trains

Progress photos of some custom ball bearing wheel assemblies on a Screamin Serpent train. Prototypes were constructed from plexiglass (initial prototype) and from plastic from a 3d printer (current and future prototypes). Enjoy!



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  • Knex plexi 1
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  • Knex plexi 2
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  • Knex plexi 3
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  • Knex Grey 3d 1
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  • Knex Black 3d 1.1
    • 243
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  • Two Car 3d Prototype
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  • Two Car 3d Prototype
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  • Front Assembly
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  • Middle And Back Car Original No Alteration Yet
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  • Middle And Back Car Fins Cut For New Assembly
    • 153
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  • Middle And Back Car Widening Of Hole
    • 158
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  • Middle Car Version 1
    • 197
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  • Finished Two Car Train Version 1
    • 198
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  • Version 2 - Front Assembly
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  • Version 2 Fin Indents
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  • Chain Dog Holder - Underside
    • 187
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  • SS Comparison Ramp
    • 508
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