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Air Balloon Motor for LEGO

Creation's quality: 5.0/5 (2 votes)
Evaluation of members on the printability, utility, level of detail, etc.

3D model description

Demo and assembly guide:
Exploded view in 3d viewer:

Extra parts needed:

  • Nitrile glove
  • Air balloon

Takes 4m of filament to print (about 5h at 20mm/s on my snail of a printer).
Will print a bit prettier with supports (80deg. overhang, touching buildplate) and ironing.
Parts with names starting with "X_" are optional.

  • You can insert one balloon into another to get thicker walls. Meant for 2-walled balloon. Idles well with one (with a flywheel), but will hardly pull any vehicle.
  • You can use metal M5 washer instead of printed one
  • Found that PLA isn't the best material for the design: isn't very slippery, and "fluid" (the clips stop pushing the parts together with time)

3D printing settings

Printed well at 0.2 layer height with 0.6 nozzle.

3D printer file information

  • 3D design format: STL Folder details Close
    • A_PARTS_ARRANGED_1.stl
    • A_PARTS_ARRANGED_2.stl
    • Balloon_Key.stl
    • Crank_Lego.stl
    • Crank_Piston_x3.stl
    • Crank_Shaft.stl
    • Crank_Washer_M5.stl
    • Cylinder_Back_Lid_x3.stl
    • Cylinder_Front_Lid_x3.stl
    • Cylinder_Ring_x3.stl
    • Piston_Washer_x6.stl
    • Plate_Lego.stl
    • Plate_Valve.stl
    • Valve_Clip_x3.stl
    • Valve_Inner.stl
    • Valve_Lid_45.stl
    • X_6mm_Pipe_End.stl
    • X_Crank_Shaft_Lego_T.stl
    • X_Crank_Shaft_Lego_X.stl
    • X_Crank_Washer_M5_Tight.stl
    • X_Helper_Cylinder_Clip_x2.stl
    • X_Key_Bigger.stl
    • X_M3_Nut_Flywheel.stl
    • X_Valve_Lid_6mm_Pipe.stl
    • X_Valve_Lid_6mm_Pipe_Intake.stl
    • X_Valve_Lid_Vert.stl
  • Last update: 2020/03/12 at 23:51
  • Publication date: 2020/03/06 at 01:25





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