GRUNT FORGE! This web app will just give you infinite configurations of models for FREE, that you will be able to export for 20mm, 28mm, 32mm or custom scales with a couple of clicks.
With an ever-growing library of T-posed Characters and Items, you will be able to create and export all the model you need!
Premium users will have the option to save unlimited poses to save time, and will have access to more variations of the same unit types, but everyone, for free will have access to at least 1 T-posed character representing a given adventurer/soldier/creature/monster, etc

Pose, add items, export as STL and after you use any of the free-to-use auto supports tools, you are ready to 3D-print it!