This strategium holo projector is a model I found on Thingiverse quite a long time ago, right when I first got interested in 3D printing. I also found a modded version, and I ended up tweaking both of them to make mine.
This was a project that took way too much time, and certainly more money than was
necessary. I wanted to try a light effect which required transparent
resin, and ended up tweaking almost all the parts in Meshmixer and Tinkercad. I printed the hive city three times to get the scale right. The light source is a LED tea light- I replaced the LED with an ultra-bright one I happened to have in my stash.
The shields display the sigils of three forge worlds- Ryza, Stygies, and Mars. The idea I had is that strategium projectors are rare devices requiring specialized components from multiple forge worlds, none of which want to share their proprietary recipes. One icon is a decal, the others are freehand. There are probably twenty other decals on this thing :)
I'm also plugging away on my servitor project, the latest being these old-school sculpts from the late Rogue Trader era.
Here are the source files: