Giant Lego Darth Vader - Arm pins for Flashprint

No matter what setting I used, the arm pins wouldn't fit into the hole of the body. Don't know if it is something with the Flashprint slicer or something else but I created this and it works flawlessly, arms still movable but not detachable and so on..

Once again, I made this primarily for my Flashforge Dreamer and slicing with Flashprint.