How Hard Is It To Make Pressed Hash? Materials legal?

I was wondering since I don't know nothing about making hash or oil if the materials for making hash (pressed hash) are legal or hard to get and how hard it is to make pressed hash?

I have a friend that makes hash oil from his cuttings and leaves left over from his harvests. Said he could teach me but I haven't got around to it, as well I have never had hash oil to really get me impressed with the high or with the potential. I've smoked mabye 2-3 oil joints in my life and only one was a proper one that got me high and it was with tobacco as well so I was a little impressed.

I know for sure I could make bubble hash as I know its not hard to make. I was wondering about pressed hash tough how hard it would be to make...

 

take it after you bubble it, put it in a t-shirt, between 2 pieces of plywood, Run over with car..

 

This is the most easy way to make hash:
https://www.youtube.com/watch?v=BstaK5dJwjQ&feature=related