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Volkswagen Air-cooled Engine Model - 1/4 scale

Print Profile(4)

All
X1 Carbon
H2S
H2D Pro
P1P
H2C
A1
P1S
X1
X1E
P2S
H2D
X2D
A2L
A1 mini

0.16mm layer, 2 walls, 15% infill
0.16mm layer, 2 walls, 15% infill
Designer
25.5 h
6 plates
5.0(62)

Single Carburetor Version Parts
Single Carburetor Version Parts
Designer
2.3 h
1 plate
5.0(2)

Re-arranged for A1 mini. Original settings
Re-arranged for A1 mini. Original settings
29.5 h
10 plates
4.8(5)

0.12mm layer, 2 walls, 15% infill Lgr Belt & 2 Clr Air Ftr
0.12mm layer, 2 walls, 15% infill Lgr Belt & 2 Clr Air Ftr
67.6 h
11 plates
5.0(1)

Open in Bambu Studio
Boost
1083
2104
165
162
1.8 k
553
Released 

Bill of Materials

Bambu Filaments
Select all
Black (10101) / Filament with spool / 1kg
Gray (10103) / Filament with spool / 1kg
Red (10200) / Filament with spool / 1kg

Description

This is a ¼ scale model of a Volkswagen air-cooled flat four motor. This model depicts a hotrodded engine with dual Solex carburetors and an extractor exhaust.

 

Some of the parts are press fit, but most require glue. I've included connection pins/dowels in several places to aid alignment of parts. There are provisions to add spark plug wires to the model for added realism, but I haven't done this yet.

 

See the photos and the assembly guide in the Documentation section for help assembling this detailed model and its many parts.

 

14-JUL-2025 UPDATE: By request I've added a single carburetor version to simulate a Formula Vee configuration. See the new print profile for the additional parts needed for this version.  The parts that aren't needed for this version are listed in the print profile description.

 

29-JAN-2026 UPDATE: By request I've uploaded all of the STL files so they can be downloaded separately for those who don't want to use the 3MF file.

 

8-APR-2026 UPDATE: A simplified 1/10 scale version of this model is available here.


Documentation (3)

Assembly Guide (3)
VW Engine Assy Instructions v1.0.pdf
VW Engine Dual Carb Version.png
VW Engine Single Carb Version.png

Comment & Rating (165)

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License

This user content is licensed under a Standard Digital File License.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.