CB,
The stainless print media is definitely not as strong as pure wrought alloy materials. And when it breaks, the fracture more resembles a cast material.
This is all due to how these 3d prints are made. The process begins with spherical stainless powders, built up in layers, temporarily held together by polymer binders. A
green print is very much like a stack of micro sized marbles (30-60microns in size). After printing these green parts are loaded into a controlled atmosphere furnace. Small sprues (stilts) are added to each part and a measured amount of bronze powder is piled on the open end of the stilt. As the temp of the furnace rises several things occur. First the binders burn off, then at somewhere around 1100ºc each microsphere of stainless joins (welds) to it's neighbor, but only at the points of contact. Concurrently, the bronze powder, which is now fully molten, wicks through the stilt and infiltrates all the voids between the stainless micro spheres until the entire 3d print is saturated with bronze. Think of the final result as a stainless sponge full of bronze. Because 3d stainless prints have a sintered composite structure they won't be as strong as a part cast or machined from similar pure metal. Even so, when properly designed and engineered amazing things are possible. Critical, moderately stressed industrial parts are definitely possible. Designers just need to avoid scenarios that invite structural failure. If tiny jump ring elements snap off then make them fatter or more integral to the design. Avoid stress risers like sharp unions. If a .5 or 1mm wall element continually fails, then it's time to redesign the part. You can't fight the nature of this beast but you can learn learn to work with it.
One thing you said surprises me though; "I can easily drill holes" ? My experience is that only carbide bits work for drilling and machining operations and even then it can be a real booger of a job. I grind, machine and otherwise finish this material on a daily basis and its generally a bear to work with. Tensile strength is only fair but wear resistance and compressive strength is actually very good.
Oh, I really like your little houses.
-G