Thanks for the reply.
2 things I do not understand with Blender (and probably in general with how 3D objects are modeled.)
1. In Blender, it seems that once I do a number of operations on an object, it gets subdivided into surfaces, sometimes in very unexpected ways (for example, it seems that a single surface can't have any holes, so it gets split in a way that there are no holes.--Am I correct in that assessment?)
So I end up with objects that look exactly like I want them to, but on the back-end their geometry is extremely complicated. For example: Look at the preview in my top screenshot in my original post: To me, this object should have 6 faces, just like a standard cube. The front face is a complicated shape with some holes and bends, but I still just want to apply a single texture to that face. But in Blender, that face is subdivided into multiple faces (see screenshot) and I have noticed that if I apply lots of operations, there may be hundreds of subdivisions. Do I have to name every surface in Blender? That seems like it would be much too complex.
2. Well I actually grew up with metric, but where I live now, everything is specified in Inches/Feet and measuring tapes mostly come like that too...and of course, most objects are sized so that they come out to even numbers in inches but not in centimeters--so it get's quite annoying to keep sizes straight (much as I think Imperial is simply stupid--it feels like swimming upstream to convert everything to metric) If necessary, I probably could design everything in Metric, but it's not just that Blender exports slightly different, but if I have an object that is 20" or 50-ish cm high, it imports into SH3D as about a quarter inch high, if I do not scale it up. Seems like there must be a different thing going on. It doesn't matter in SH3D, but if I send something to be 3D printed I need to figure out how to preserve EXACT absolute sizes.
