A simple hand grenade model that can be printed in 4 parts. I'm still working on the pin for it.
Print at 50% from what the STL loads as.
I created a STL for the pin but it looks a bit too thin to print. I will give it a try. Maybe better to actually use a metal pin.
Also there is a location in the top for a spring to be installed. This will push the handle up when the pin is removed.
Print from STL at 50%.
The pin for the handle is a bit small to print properly so I suggest just using a metal pin like a small nail.