Twin Cylinder Steam Engine Model

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ppemawm
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Twin Cylinder Steam Engine Model

Post by ppemawm »

This miniature assembly was created using 32 bit Windows 7 FreeCAD V0.13 Rev 1828 as a study in modeling linkages and tubing in 3D space using the Part Design workbench. The global axis was located at the point of symmetry so that maximum use of Part mirroring about the Z axis was possible as shown in the second screenshot. All parts were created in the same file and grouped by part name. Fasteners are generally not included in order to keep the file smaller to maximize performance during modeling.

Dimensioned drawings used to create the parametric solids can be found here:
http://www.john-tom.com/html/SteamPlans.html
The FreeCAD assembly file (4.08 Mb) is at:
https://www.dropbox.com/s/fsn8kecvxn60r ... nder.FCStd
Twin_Cylinder_Assy_Isometric.JPG
Twin_Cylinder_Assy_Isometric.JPG (81.39 KiB) Viewed 4959 times
Axis_of_Symmetry.JPG
Axis_of_Symmetry.JPG (29.8 KiB) Viewed 4959 times
Twin_Cylinder_Rotor.JPG
Twin_Cylinder_Rotor.JPG (46.56 KiB) Viewed 4959 times
"It is a poor workman who blames his tools..." ;)
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cblt2l
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Re: Twin Cylinder Steam Engine Model

Post by cblt2l »

Very impressive! Have you built one of these yet?
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ppemawm
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Re: Twin Cylinder Steam Engine Model

Post by ppemawm »

cblt2l wrote: Have you built one of these yet?
I have not.
"It is a poor workman who blames his tools..." ;)
triplus
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Re: Twin Cylinder Steam Engine Model

Post by triplus »

Nice work.

P.S. It looks like we do not need assembly workbench after all. :lol:
ayham abuabbas
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Re: Twin Cylinder Steam Engine Model

Post by ayham abuabbas »

Dear ppemawm
could you pleas send me your email or other contact details
Best Regard
Eng.Ayham Abuabbas
un1corn
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Re: Twin Cylinder Steam Engine Model

Post by un1corn »

Well done, do we have another steam enthusiast out there?
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ppemawm
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Re: Twin Cylinder Steam Engine Model

Post by ppemawm »

ayham abuabbas wrote: Fri Feb 08, 2019 10:28 am could you pleas send me your email or other contact details
You may contact me using the Forum's private messaging (PM).
Thanks.
"It is a poor workman who blames his tools..." ;)
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ppemawm
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Re: Twin Cylinder Steam Engine Model

Post by ppemawm »

un1corn wrote: Fri Feb 08, 2019 2:49 pm Well done, do we have another steam enthusiast out there?
Indeed. These are fascinating machines especially considering how long ago
they were invented. And, they can be an interesting challenge to model,
as you well know.
"It is a poor workman who blames his tools..." ;)
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