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Lego Big Boy Drive Rods

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Creation quality: 5.0/5 (1 vote)
Evaluation of members on the printability, utility, level of detail, etc.
  • 3.4k views
  • 4 likes
  • 68 downloads
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  • Big_Boy_3d_Printable_Drive_Rods.zip
    • Exact/Piston Rod Exact.stl
    • Exact/Valve bar 4.5l Exact.stl
    • Exact/Valve bar 6l Exact.stl
    • Exact/Valve Connection rod Exact.stl
    • Exact/Valve Timing Bar Exact.stl
    • Exact/Wheel drive rods Exact.stl
    • Precision Test.f3d
    • Precision Test.obj
    • Precision Test.stl
    • +0.1/Piston Rod +0.1.stl
    • +0.1/Valve bar 4.5l +0.1.stl
    • +0.1/Valve bar 6l +0.1.stl
    • +0.1/Valve Connection rod +0.1.stl
    • +0.1/Valve Timing Bar +0.1.stl
    • +0.1/Wheel drive rods +0.1.stl
    • +0.2/Piston Rod +0.2.stl
    • +0.2/Valve bar 4.5l +0.2.stl
    • +0.2/Valve bar 6l +0.2.stl
    • +0.2/Valve Connection rod +0.2.stl
    • +0.2/Valve Timing Bar +0.2.stl
    • +0.2/Wheel drive rods +0.2.stl
    • README.pdf
  • Piston_Rod_+0.1.stl
  • Piston_Rod_+0.2.stl
  • Piston_Rod_Exact.stl
  • Precision_Test.f3d
  • Precision_Test.obj
  • Precision_Test.stl
  • Valve_Connection_rod_+0.1.stl
  • Valve_Connection_rod_+0.2.stl
  • Valve_Connection_rod_Exact.stl
  • Valve_Timing_Bar_+0.1.stl
  • Valve_Timing_Bar_+0.2.stl
  • Valve_Timing_Bar_Exact.stl
  • Valve_bar_4.5l_+0.1.stl
  • Valve_bar_4.5l_+0.2.stl
  • Valve_bar_4.5l_Exact.stl
  • Valve_bar_6l_+0.1.stl
  • Valve_bar_6l_+0.2.stl
  • Valve_bar_6l_Exact.stl
  • Wheel_drive_rods_+0.1.stl
  • Wheel_drive_rods_+0.2.stl
  • Wheel_drive_rods_Exact.stl

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Publication date 2023-01-22 at 16:50
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Published to Thingiverse on: 2022-01-29 at 17:08
Design number 1023368
MorningStrummer

MorningStrummer

3D printer file info

3D model description

These drive rods are specifically designed for my Lego Big Boy model, however they can also be used on other locomotives.

More info on the locomotive can be found here: https://reb.li/m/89126

!!!BEWARE!!!
There are 3 different versions here; "exact", "+0.1" and "+0.2"
Before printing any parts, print out the Precision test in order to see your printers/filament capability's.
By checking the fitment with lego pins and axles you can determine what version to print.

For the Big Boy all parts need to be printed 4 times, BUT the "Valve Timing Bar" needs to be printed twice mirrored and twice normal.

3D printing settings

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