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Modelo 3D Balloon Powered Radial Engine por Slava Z. no Printables

Descrição

Updated version (crankshaft doesn't block the exhaust anymore) can be found on the MakerWorld: 
[https://makerworld.com/models/1801690-balloon-powered-radial-engine](https://makerworld.com/models/1801690-balloon-powered-radial-engine)



Run by just blowing air into it. Demonstration:
[https://www.youtube.com/watch?v=\_FDZzKAFSz4](https://www.youtube.com/watch?v=\_FDZzKAFSz4)

Exploded view in 3d viewer:
[https://skfb.ly/6LQBR](https://skfb.ly/6LQBR)

If you like how it works, you can support me by purchasing the Pneumobile chassis:
[https://gum.co/pneumobile](https://gum.co/pneumobile) (3d Viewer: [https://skfb.ly/6LV6D](https://skfb.ly/6LV6D))

Works with this remote:
[https://www.thingiverse.com/thing:3675568](https://www.thingiverse.com/thing:3675568)
Or with simpler remote from the Vapemobile set:
[https://www.thingiverse.com/thing:3606204](https://www.thingiverse.com/thing:3606204)

Extra parts needed:

  • M3x8 Bolts (x15)
  • M3 Nuts (x15)

Nitrile Gloves (thumbs from M sized gloves worked the best)
or Silicon (worse) or PET (not tested) ones
Optional parts:

M3x12 or longer bolts (2x)(for the gears)

  • M3 Nuts (x2)(for the gears)
  • 6x4mm Silicon Pipe (can be found in aquarium shops)
  • M5x10mm Washers (x2) (instead of printed ones)

105ZZ Bearings (x2) (noticed no difference in performance)
Printed well with 0.6 nozzle at 0.2 layer height. Some parts (Cylider_Back_Lid and Valve_Lid_6mm) need supports. After printing cut away the brims from Cylinder_Ring parts.

Parts with "X_" in their names are optional.

Assembly:

Use 3d diagram as a guide: [https://skfb.ly/6LQBR](https://skfb.ly/6LQBR)

  • Cut off a glove finger tip (thumbs from M sized glove worked well)
  • Pull it onto a Cylinder_Ring (Use Helper_Finger to leave enough height)
  • Connect a Piston to it with two Washers
  • Clamp the Cylinder_Ring between Cylinder_Plate and and Cylinder_Lid
  • Clip them with Helper_Clamp so they won't fall apart at once
  • Bolt them together to Plate_Top
  • Repeat for the other 2 cylinders
  • Insert th Crank with 2 Washers
  • Fix it in place with Frame_Bottom
  • Bolt all the parts together
  • Put the Valve_Inner in place
  • Bolt the Valve_Lid into place

The engine should be running!
Troubleshooting:

  1. Rotated freely by hand, but struggling when working - the inner valve may have too much friction against the frame (sanding the valve and the frame may help for a while).
  2. Jams on a certain cylinder - this glove finger may need a bit more slack.
  3. Isn't rotated freely by hand - gears bolted too tightly to frame (should have a bit of play), some gear teeth didn't print very well, or the whole gear printed with "elephant foot" and runs too tight with another gear.

Print instructions

Category: Mechanical Toys Print Settings

Printer: Anet AM8

Rafts: No

Supports: Yes

Resolution: 0.2

Infill: Solid

Filament: Bestfilament PLA Dark Grey

Printables

Balloon Powered Radial Engine

Slava Z. Slava Z. (abre em nova aba)

Publicado em 3 de nov de 2025

552
Curtidas
865
Downloads
8
Impressões
Categoria Engineering
Tags
motor steam gears mechanical mechanicaltoy air steampunk working engine cylinder pneumatic radial thingiverse simple compressedair airpowered balloon powered 3cylinder compressed pneumatics
Licença Standard Digital File License
Arquivos (49)
piston_x3_25431.stl 243.3 KB
cylinder_ring_x3_25431.stl 120.1 KB
valve_inner_25431.stl 247.7 KB
valve_lid_balloon_25431.stl 1.2 MB
x_pulley_25431.stl 1.2 MB
x_gears_1to8_2_bevels_25431.stl 738.9 KB
x_6mm_to_tap_water_25431.stl 542.7 KB
x_6mm_to_whistle_25431.stl 825.3 KB
crank_for_m5_washer_25431.stl 538.9 KB
gear_center_25431.stl 273.1 KB
gears_1to8_1_25431.stl 801.3 KB
gears_1to8_2_25431.stl 843.4 KB
frame_bottom_25431.stl 495.9 KB
x_cylinder_ring_02mm_gap_25431.stl 120.1 KB
gears_1to2_25431.stl 849.3 KB
cylider_back_lid_x3_25431.stl 1.4 MB
x_valve_lid_6mm_vert_25431.stl 457.3 KB
piston_washer_x6_25431.stl 77.6 KB
washer_m5_x2.stl 64.5 KB
x_valve_lid_6mm_flat.stl 1.2 MB
x_gears_1to8_2_bevels.stl 738.9 KB
cylider_back_lid_x3.stl 1.4 MB
helper_finger_height.stl 286.7 KB
frame_bottom.stl 495.9 KB
gears_1to2.stl 849.3 KB
gears_1to8_1.stl 801.3 KB
x_pulley.stl 1.2 MB
cylinder_plate_x3.stl 320.8 KB
x_valve_lid_6mm_flat_90.stl 1 MB
piston_washer_x6.stl 77.6 KB
gears_1to8_2.stl 843.4 KB
helper_cylinder_clip_x2.stl 560.4 KB
x_valve_lid_cartridge.stl 1.7 MB
valve_lid_balloon.stl 1.2 MB
x_crank_for_105zz_bearing.stl 549.4 KB
x_2_balloon_cartridge.stl 1.7 MB
piston_x3.stl 243.3 KB
gears_1to3_1.stl 704.8 KB
gear_center.stl 273.1 KB
x_6mm_to_tap_water.stl 542.7 KB
x_6mm_to_whistle.stl 825.3 KB
gears_1to3_2.stl 878.8 KB
valve_inner.stl 247.7 KB
x_cylinder_ring_02mm_gap.stl 120.1 KB
cylinder_ring_x3.stl 120.1 KB
frame_top.stl 834.4 KB
crank_for_m5_washer.stl 538.9 KB
x_valve_lid_6mm_vert.stl 457.3 KB
A_ALL_PARTS_ON_PLATE.stl 49.6 MB
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