Only prints support structures, not design

Hi! I’m new to the community, been learning my way into the 3D printing world with a newly acquired Lulzbot Mini. :smiley:

I’m very new to the 3D printing world, so it might be something obvious I’m missing, but I imported an AutoCAD design into Cura by just loading the stl file, and everything looks OK in Cura, but when it comes to printing the design, it only prints support structures. Is there something important that I’m missing?

Thanks in advance!
whorlpipe.STL (5.4 MB)

Did you Scale it down at all? That thing is way to tall!

Yes, scaled it down, tried printing it in different way, standing both directions and one time lying down. I now realize that Cura sometimes says 0 min building time, which means something is wrong, right?

Everything checks out on my end. I scaled it down to 0.2 and I get 3 hours and 20 minutes. Layers looks fine and your model looks fine in blender as well.