Threeo

Hi there I have an ENDER PRO 5 I printed this character in upright position with an infill of 20% (PLA). Its left leg turned out solid enough, the right leg was too weak and broke off. In order to keep the infill to 20% I added two stabilizing cylinders inside the lower legs in BLENDER. I exported the character with the two cylinders inside as an STL-file. -> those two cylinders were not printed my questions: 1) is it still somehow possible to print those two cylinders within the mesh/character? or 2) is it possible to have a 80%-infill in the legs but a 20%-infill in the huge belly (in the same print)? or 3) any other solutions? thanks a lot for your reply! Threeo