Optimus Prime (updated, printable)

Nov 18th 2019: UPDATE below original text
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ORIGINAL TEXT:
So here's the thing:

this model is 3d geometry ripped from the videogame "Transformers: Devastation" by me.
The joints are weak, just 3d geometry put together by bones, so maybe they need a few more faces there and there in order to make them stronger (knees and elbows break apart with as much as a hard stare at them).

I've been unable to print it properly, be it ABS or PLA.

Asi you can see from my lates