Boxer-Engine KeyRing

Copyright Claim

Boxer-Engine KeyRing

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Print Profile(3)

All
A1 mini
P1S
P1P
X1
X1 Carbon
X1E
A1

0.2mm layer, 2 walls, 15% infill
0.2mm layer, 2 walls, 15% infill
59 min
1 plate
4.6(14)

By Object 2 Colors AMS 0.2mm layer 20% infill P1S/P, X1C
By Object 2 Colors AMS 0.2mm layer 20% infill P1S/P, X1C
1.1 h
1 plate
5.0(2)

300% Scale - 0.2mm layer, 3 walls, 25% infill
300% Scale - 0.2mm layer, 3 walls, 25% infill
11.9 h
4 plates

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12
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Released

Description

KeyRing of a combustion boxer-engine with turning crankshaft and moving pistons.
In this design the pistons of each opposed pair of cylinders move inwards and outwards at the same time. Like all BMW boxer engines.


Printing
No supports.
I printed with PLA+, layer height 0.15 mm.


Assembly
- Use some oil or grease between moving parts for a smooth operation.

- Build the crankshaft using the crankshaft alignment tool.
Apply glue. I use Loctite Super Glue-3 Power Gel.
Attention for the orientation of the piston rods: upper piston rod upside down!

- Click the pistons in the cylinders, placing the assembled crankshaft in the crankcase.



- Screw the winding button on the back of the crankshaft.


Operation
Turn the winding button on the backside of the crankcase.
The pistons of each opposed pair of cylinders move inwards and outwards at the same time.

Comment & Rating (23)

Please fill in your opinion
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Boosted
I really like this design as a Subaru owner! Keep up the good work!
2
Reply
Boosted
Print Profile
0.2mm layer, 2 walls, 15% infill
Great Model!
2
Reply
Print Profile
0.2mm layer, 2 walls, 15% infill
Really cool print! Although, I did have some issues with the intake/exhaust valve/spark plug holes. Printing on an A1 Mini with PolyLite PLA (Black, Steel Grey and Starlight Neptune), I couldn't get that area to print well without adding supports. Normal (auto) supports with angle threshold set to 10. Other than that, they came out great. Can't wait to give a couple of them to my Subaru buds. Thanks!
1
Reply
Print Profile
0.2mm layer, 2 walls, 15% infill
Beautiful model, works well, but I have to deduct one star because the thin wall between the exhaust and intake valves tends to break; it broke the first time. Gluing the crankshaft is tricky and has too much play. I would have used a square connector. On the second attempt, I significantly reduced the speed. Alternatively, it could be designed thicker from the start. Otherwise, the model is very good. My son liked it, and I printed it at 300% size for him.
(Edited)
0
Reply
Awesome design!!! I now have a "Show-n-Tell" to explain why I have 2.5L of Subi Love!!!
(Edited)
0
Reply
As a BMW rider I really appreciate this design!
2
Reply
great design, this thing for sure would be more popular if you add in a ratchet or a magnate as a fidget toy as it already got the rotating part done.
The designer has replied
0
Reply
Thanks for your suggestions. For now I do not have the intention to add noise to this design..... I think my other design: "Engine KeyRing by Bootjevaarder - MakerWorld" would be more suitable as a fidget. I will think about it.
0
Reply
Print Profile
0.2mm layer, 2 walls, 15% infill
turned out great
0
Reply
METROPARQUENIAL
0
Reply
Print Profile
0.2mm layer, 2 walls, 15% infill
printed great
0
Reply

License

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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.