Modular small craft for sci fi rpg

My group started a sci fi campaign so i threw this together to cover a variety of small craft. We are using Traveller rules so the squares are 1.5 meters x 1.5 meters x 3 meters so 2 squares = a Traveller ton of ship size. The bridge is roughly 7 tons so it is good for upto a 99 ton craft, the engine room is 13 tons so a bridge and engine room make a gig under the standard small craft designs. The 5x4 "cargo" section is 10 tons, added to a gig it makes a 30 ton ships boat, 2 added make a 40 ton pinnace, 3 added make a 50 ton cutter. i have made some flat other shapes for variety but they are minimalist. They can be combined in different shapes. To have a chance for the doors to work you need to print with a .2 nozzle or only the airlock will be defined enough to use.