Hi, so I am trying to make an accurate scale reproduction of some early 20thC steel work, which includes a variety of standard rolled steel shapes. Of course these steel shapes were themselves designed to save material by using thin walls to efficiently create strong shapes, and you can imagine that translating these shapes into a FUD-acceptable thickness at HO scale is not completely possible.
I will readily admit to not understanding the guidelines when I started converting my model into something that could be printed, and after the hours it took to fatten up all of the members to 0.3mm, I tried to send the thing to print anyway knowing it would probably get flagged, and it did.
I still want to keep the steel angles in my model as thin as possible, and angle-shaped, but I don't want to waste my time by redoing them in a way that will get rejected again. Currently the structural angles are supported wires that are "L" shaped in section. The legs of the "L" are 0.88mm long, but only 0.3mm thick. Due to the "L" shape, I know they are stronger than a piece that is 0.88mm x 0.3mm, but I get why they were rejected. The current profile is in red in the attached image. [EDITED TO ADD: The attached image shows the wrong thickness for the flanges of the angle. They are 0.3mm thick]
I believe the section for supported wires is required to be 0.6mm thick to be acceptable. Must this section be square (blue), or can it be circular (green)? I really prefer to just add the area outlined in orange to get the thinnest measurements up to 0.6mm, but even then I feel the profile of my steel shapes will be pretty badly compromised. Just by looking at the image I have created, I am confident the current shape outlined in red would be stronger than either the blue square or green circle profiles (in bending and in shear). Sigh.
Any other suggestions? Can anyone tell me what I have to do to get this through? I feel it is pretty much guaranteed that users of this site will always be pushing the limits of what the technology is capable of.
Thanks