Here's a ~6mm scale version of the Union Dropship for Classic Battletech. It's actually about 1:300 scale (390% original), which made it easier to print on a Prusa bed, but it ends up only being less than an inch away from true 6mm / 1:285. However, I couldn't tell the difference and it looks right on par with the miniatures, i.e., assaults could fit through the doors.
I also added a ramp model to use with the lower airlocks, and glued small magnets to hold them in place when desired.
All credit and thanks goes to: Union Class Dropship by DMCL-GB-Avatar.
The main body is sliced into 8 pieces, and prints without supports. When gluing the pieces together, there can be minor gaps ~1mm wide from warping. I filled them easily with putty.
The landing gear was tweaked to sit the whole model on level ground. I used support enforcers just on the upper arm's.
The hatches printed with no supports and just a brim to hold it in place.
- I used a .6mm nozzle, .3mm layers, and 10% infill for fine results. The detail holds, its sturdy, and it was a healthy trade-off for reasonable print times albeit 2 spools of material.