Welcome to the SeeMeCNC Community

Attached are a few pics of a issue ive been running into lately. These files were originally made with archicad or 3ds max as a OBJ file, then converted into a STL, then ive tried different combinations of using the netfabb cloud, netfabb basic program, and Deskartes 3data Expert to fix the model. The slicing program always shows the model to be ok for the most part after fixing, but it never prints the side walls of the house, only the top. Basically only support material is being printed to support the roof. I just don't get why none of these programs are able to fix the models consistantly. Some models work fine, then others don't. Also I attached one pic of a model that printed great! One such converted STL in question is attached.
Any suggestions ?
As always thanks!