i just decided to build my vape since i wanted convection (only kind you should ever consider since it uses the circulation of hot air around your herb rather than direct contact with heat source to vaporize)...volcano is too expensive for me and everything else i've looked at kinda sucks. Plus, I wanted an oil/butter making attachment. bought a variable temp heat gun from Volcano Vaporizers - Herbal Vaporizers - Tobacco Vaporizers - Herbal Vaporizer - Buy Vaporizer (not endorsing...esp since i don't think this gun manufactured by wagner is the best ever but it's the cheapest variable temp gun with ceramic element [don't consider using a metal element heat gun b/c the metal can vaporize at these high temps and that ends up in your lungs] at $79.99). Anyway, i'm posting a few pics. The first one was before I blow-torched the solder joints, so don't prejudge the weld job! Another point there: I was sure to use 450degree F rated brass valves and solder just to make sure the vape is SUPER safe/healthy to smoke out of--considering my gun is set to 500ish deg F when I vape, the temp is just about below 400deg F when it hits the bottom of the 8" pyrex test tube (checked with thermography gun), so were totally good at the first brass valve and past it! I'm proud! :jointsmile: