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I am impressed with the progress and quality of home made BP. It is difficult to extract data from 5600 posts to this topic. So, what is a common puck diameter and thickness, and how much pressure is applied to the slightly dampened green powder. Once the pucks are dry, what method is best used to reduce the pucks to granules for screening. I am reading grain mills, coffee grinders, etc. Working independently of this site , my pucks are 1 3/4" diameter by 1 3/4" tall, pressed 8 ton. They are difficult to break up. My powder slightly exceeds the velocity of GOEX. The density of my powder is about 83% of GOEX. My charcoal is cooked from home raised white pine. I just cooked a batch of grape vine for a test batch. Also, in researching soft, fast growing woods, Aspen, is a wood that I also will try, as I have that growing. Aspen is very weak, with branches easily broken off in a wind storm.
John.
I find pucks that are 1/8" - 3/16" work best. Thicker pucks are hard to bust up and probably take longer to dry out. I now use a grain mill, and the distance between the grinding rollers wont handle pucks much thicker than 3/16".