transformers, metroplex, scamper arms

on the original file of scampers arms, once sliced through CURA then set to print, as soon as print is finished you always ended up with the arms breaking at the wrist and at the rear of the arm,

so ive remixed the arm through Tinkercad,

Ive found it easier when you open the STL file in CURA, simply rotate so the peg is at the top (this way when you are removing the supports you will not break the little peg off which is scampers arm peg) multiply x1 and slice

no sanding on the peg needed as its a perfect fit on scamper..