[dataway]

Well, here is the same CAD block file printed at 1/24. I'm frankly amazed it did as well as it did. This is printed at the finest resolution and highest quality settings I can produce. About .0023" inch layer height, and line width about .008" line width.

While it's certainly recognizable as a copy of the larger piece it would take some changes to make it print a bit cleaner .. basically changes that would reduce the detail some, details that just end up little tiny blobs. Kind of like trying to write a letter with a caulking gun (on a microscopic level).

Holding it in your hand it looks quite nice. I'd call it acceptable. I'll print out some more pieces and see what a whole engine looks like and how it goes together. Could probably ship in a padded envelope in pieces.

More accurate measurement is 0.875" long, or 21" full scale. That's got to be within an inch of the real thing I think (bare block).