As you know, I've been pursuing a few 3D printing projects including two CN woodchip cars, a CN 65ft gondola and a GTR Bombay-style cupola caboose conversion kit.
During the last few weeks, I was able to iron out most design flaws out of my initial 3D models and I'm getting prints of the level of quality I wanted, i.e, almost no sanding, fine details and ease of assembly. However, I'm not a master a this trade and the most tricky part in the process is adding 3D supports to your models so they print correctly. A mistake in that department and serious deformations can occur. Don't ask me why, just look at the failed shells in my garbage bin and you will understand.
In that regard, looking a various online 3D printing resources was useful, however, very little videos or tutorials are geared toward railway modellers. Most are in the wargaming hobby, meaning deformations are at least more tolerable because they work with organic shapes. Unfortunately for us, our prototypes are mainly boxes and if something isn't 100% square it shows off quite a bit and ruins the look whatever the quality of the print.
So I'm trying to figure out how to design the best supports for my prints. Until this serious (and last issue) is finally addressed, I hope to be able to move forward toward production or distributing STL files for those interested. At this point, the GTR caboose conversion kit is my priority because it is smaller and can serve as a good base to sort out printing issues.
While I don't hope to make a living out of these projects nor want to start a business at any cost (lack of time and interest), I wish these models can be available to other modellers as soon as I can.