So I found this video on making DIY kettlebells, and it looks pretty awesome.I am interested in making a whole set of these, so I was wondering if anyone has any ideas as to how to decide how much weight it should have BEFORE making it. My own idea is varying ball sizes, and then comparing the possible amount of concrete that goes in them, with the weight said amount of concrete will weigh, and work it out mathematically.Any suggestions, ideas, perhaps critics of why my own idea won't work? Oh and also, if anyone has any suggestion about making the bottom side flat (like on a regular kettlebell), I know it basically comes down to the material and how bendable it is, but if anyone has a smart suggestion, I'm really open to hearing it. via /r/DIY https://ift.tt/2JRIJrK
