An easier way of doing it is to get some piping from homedepo and some connectors close of the ends and put a hole small enough on the top for the butane and then put holes on the other side alllll over.. pack that shit with weed.. get a hot bowl of water and then a glass plate put it on top of the water in a very warm environment.. then spray your can in the tube, let it drip out the other side onto the plate let it sit for a day or so... and waaalaa the best damn oil evaa lol...you will be scraping that plate clean... and the piping is better i think... you can use a lot more weed...OH and a heads up to all that is trying make sure you buy plenty of butane one can isnt as much as you think :thumbsup: