Award winning toilet paper holder. "2nd prize design contest ReprapWorld March 2018".
I just needed a fancy toilet paper holder. It escalated a bit. The final printed monstrosity weighs in at a hefty 3.5KG.
Each of the hexagon cups was printed in about 16 hours.
Use dynamic resolution so that the strait parts are printed in 0.25mm layer height and the overhangs at 0.15mm layer height. If your slicer cant slice with dynamic layer heights, use 0.15mm on whole object.
Use dynamic infill. Default to 10mm infill. Use the infill mesh stl to dynamically change the infill to 3mm for supporting the skin better. If you cannot use dynamic infill, experiment first with a 33% scaled version and test how the skin printing behaves at like 5mm infill.
Print 2 pieces of the stl with the mouting hole. Print as many pieces you like of the stl without the mounting hole.
Arrange all the printed pieces in a nice pattern of your liking. Put the ones with the mounting holes on the outside of the shape.
When happy, glue all pieces together. For me Bison Poly Max ® Crystal Express worked out great to glue PLA.