Hey guys ! I want to share a DIY vaporizer design that i've been using on various occasions ,i've broken more than a few test tubes till i figure ,what is the safest way to operate and produce it.So for my current build i use two test tubes and a silicon ring. Test tube for the bowl is 12mm/100mm 0.8mm thick and 16mm/100mm 1mm thick (I have few 16m/100mm that work too,but its 0.8mm thick ) Heater is similar to that of the gnome vaporizer .Here is a video of operation , Can someone please tell me how to make the video visible here in the thread and not on the link, I tried to insert it as a media but no luck. Tinypic was to worked for me ,but today it crashes and these two sites dont seem to offer a way to make this happen. http://www1.zippyshare.com/v/TOuieDw2/file.html# http://sendvid.com/qfe5ukdt . Here is a gif of the second hit. Platyed a bit too long with the torch and overheated but still got brown abv.