I have always wanted to make this project but have put it of for ages until i watched the Dark Knight with my friend and saw the Batarangs in action and wanted to make it again so here it is. This project isn't too hard and should be a great project for any skill level. Click here for the video
So to start you want to print of a template of a Batarang cut it out and ether glue it on to the steel but what i would surest is to mark it onto the steel using a permeant marker as under the heat of the grinder it maintains the mark. Just search batman logos.