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Unique 3D printed engine

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gbritnell:
It took about 50 hours. The main case took 26. I was using silver silk PLA. Bed temperature 53 and extruder temp 206. There's probably ways to make it print faster but I'm still learning 3D printing. So many little nuances about settings and such.

Admiral_dk:
Thank you very much George - this clarifies the function very well  :praise2:

I can't help wondering if it can be balanced at all - as it most likely has a very strange rotational vibration pattern with harmonics ...?
Then again - it might not be bad at all  :noidea:

I do like the very few moving parts idea - but I'm not sure it is simple to make it last + it might need a two-stroke fuel/oil mix ....

Anybody know if they ever vent into any kind of production ?

Per

gbritnell:
Hi Per,
It has pressure fed oil lubrication through small ports in the cylinder walls and feed lines to the bearing journals.  I didn't include them in the model because of the small size.

Admiral_dk:
Thank you for clarifying that George  :)

I do understand why you didn't attempt to do the oilsystem.

Per    :cheers:

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