Detailed Wankel Engine Model
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Published on January 15, 2013
This thing was Featured on January 16, 2013
Derived from
Wankel Rotary Engine Model
by jag
Description
Added combustion chamber recesses to the rotor, spark plug holes and intake/exhaust ports to the housing. Technically the ports should take a 90 degree bend and exit out the side, but then you wouldn't be able to watch the rotor movement from the crank side of the housing.
The crank and eccentric have been modified for a looser fit, the originals weren't working for me.
The crank and eccentric have been modified for a looser fit, the originals weren't working for me.
Instructions
Fit the rotor into the housing, pop the crank through, put the eccentric in.
If the crank and eccentric are too loose, download the original ones from jag.
If you were one of the first 70 or so people to download this, you may have noticed the eccentric and crank were extremely loose, because they were at 3/4 scale. Oops. Scale the files up by 1.33333... before printing or just download the fixed versions.
If the crank and eccentric are too loose, download the original ones from jag.
If you were one of the first 70 or so people to download this, you may have noticed the eccentric and crank were extremely loose, because they were at 3/4 scale. Oops. Scale the files up by 1.33333... before printing or just download the fixed versions.
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MacGyver
on
January 16, 2013
said:
The wankelecc.stl file is not scaled correctly. Also the wankelcrank.stl file is not scaled correctly either.
yzorg
on
January 16, 2013
said:
could this maybe run on compressed air?
petropixel
on
January 16, 2013
said:
It'd be fun to just seal off the open side of the housing with an acrylic sheet, pump some air in and see what happens, but I think it'd actually take a number of changes to the housing. The tips of the rotor don't actually touch the sides of the housing all the way around (up to a full millimeter gap), you'd probably want to close the spark plug holes, maybe even move the ports so there's less overlap.
License
Detailed Wankel Engine Model by petropixel is licensed under the Attribution - Share Alike - Creative Commons license.
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Slicer 0.9.8 complains about wankel_housing_ported_x.stl Resulted in printing just the outer wall of the housing on the bottom, never let it get past the 2nd layer to see what else it would do. Netfabb fixed it right up.
I had the same problem. What is Netfabb and how to I fix it??