Whatizit?We see ducting all the time without being aware of it as it just becomes part of the background much like telephone poles, fireplugs and storm drains. Our eyes will usually just pass over such common objects without triggering anything. Homes often will have an external AC unit with ducting running to the house. |
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Industrial Examples |
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![]() Notice that some of the sheet metal have X-shape ribs to strengthen the part while others lack it. |
![]() A quick guess is that the larger pipe is ~30″ diameter while the smaller perhaps 12″ |
Modeling |
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![]() It was successful enough that a ‘kit’ was sold. The kit is now being sold by Rail Scale Models – as “Roof Top HVAC System – O Scale“. There was also a HO version. The plan is to supply RSM with parts for a future release. |
![]() The pipe is Evergreen tubing and the elbows are 3D prints. The HVAC unit on the roof was printed on a filament 3D printer. I love the clutter. |
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Exactly what is needed ranges greatly but currently here are the general categories (this may change depending on beer). Click the link to Converters, Joiners, Center Joiners, Elbows, Tees or Exhaust Ports to go to a Product Page for each of these items. Note that for the time being, this is “Old Stock” from Rusty Stumps.
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Walter Miles
Do you have a supply of HO scale HVAC ducts on hand?