Knuckle

thingiverse

disclaimer: don't print or share it if you want to do something bad or injure someone with it. I won't take any responsibility if you have share it or print it and someone or something got heart from it. it is not a toy this could cause a serious damage. this pictures are for the old model of the Knuckles. I have fixed and supported the walls between the fingers to be more stronger. please make sure to print the 3.2 version since it's way better