You dont need any infill with this model FYI, if your having printer issues start off by slowing down the print and using your cooling fan. I presume your using PLA so run that fan on high (at least 80%). For you I would also suggest making sure you have 2 or 3 walls of thickness instead. Once you get your printer dialed in you can attempt a single wall. I print mine all hallow and have successfully got single wall (paper thin thickness) from every filament EXCEPT nylon which needs 2 walls. Can you take a pic and attach it to a reply? I attached a couple pics of this pikachu the yellow is PETg and the clear is nylon.