Im very new to cad and really into guns. I would like to mill my own ak 47 receiver. Ive been tinkering in Rhino and still have no clue where to start. Do I make a rectangle and hollow out the center? Make separate walls and shapes and attach them at the end? Im so stumped. I included some pics of a machined receiver so maybe someone could point me in the right direction on how to start this project.:violin: