My component (attached) seems to meet all the requirements for a successful 3D print -
Faces all in the right direction
Reports as a solid component
Solid Inspector 2 says it’s all shiny
But, when I export the .stl and import it into Slic3r, the 3D Plater view looks fine, but the 2D shows nothing, the preview looks weird (attached), layers sort of works, but doesn’t show many layers, and it reports the print will take 28s, which can’t be right.
I have sliced it, produced the G-Code output and tried to print it, but nothing really much printed, and indeed it did seem to take about 28 seconds.
I tried going down the route of uploading it to 3D Warehouse, to select it as a printable part and take advantage of their facility to ensure it will print, however that’s not playing nicely either.