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Marble Pump to build a Hubelino Marble Machine

3D model description

For my godchildren, I developed and 3D-printed a Marblepump. The marble pump is compatible with Lego / Duplo bricks and designed to use with Hubelino marble tracks.

I made a short Video, where you can get a first impression. https://youtu.be/UdZP1RB9AnA

Affiliate Link to the Hubelino marble run: http://amzn.to/2gon6T8

As explained in the Video, I designed two versions. The differences in the feeding of the marble to the marble pump.

Version 1 (feeding with generic Hubelino track)

Auger V1
Pump housing V1
Version 2 (feeding with optimized marble track)

Auger V2
Pump housing V2
Feeding slope V2
Common parts (version 1 and 2)

crank short
crank long
spacer block
top outlet right
top outlet left
I recommend that you first print the following sample brick to tune in the printer settings for a perfect fit to the generic bricks.

generic brick for testing
Enjoy!

3D printing settings

Printer Brand:
Prusa

Printer:
Prusa Clone

Rafts:
No

Supports:
No

Resolution:
0.2mm

Infill:
20%

Notes:
I made a test print with a brick. Then I compared printed one to the generic brick.
With the scale function of the slicer, I adjust the error of the pitch of the knobs.
With this, the shrinkage of the part can be compensated. For PLA I have to scale by 1.005.

  • 3D model format: STL

Tags

Creator

License

CC BY NC SA

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