Report as inappropriate

Prints in PLA should be fine but you need high infill. Filament brands also seem to make a difference... and no machine or slicing app works the same as another. I must have printed 100+ of these on my MakerBots and they are all reasonably springy with an okay bite. Having said that a PLA 3D print will only ever be reasonable... not fantastic. That is a material limitation. Another thing that may help is, if you can in your slicing app, change the infill pattern to linear.

I hope this helps. ..