I have a problem with support material. On the photo you see an overhang circle. These thing need support. I’ve tried touches bed and all over but no one works. It display no support. I slice with Cura in ReptierHost.
Download and install Autodesk MeshMixer (it’s free, Google for it).
Import your STL in MeshMixer. In the software is a function called Analysis. First you have to lay your object flat on the bed (select Orientation in the dropdown menu).
Then select Overhang in the dropdown menu. It outlines the overhangs. Click generate support and it will add small pillars to your object. if your not satisfied you can fiddle with the various options.