It appears that “DIY self defense”,(http://diyselfdefense.tumblr.com/) has gone off the air. It was a great site and he had cool stuff that he found and posted. It and Improv Guns (https://homemadeguns.wordpress.com/) were the only sites that dealt with home made firearms.
I have always found it interesting what people can come up with when weapons are outlawed by their government.
I will miss his site.