3S10P Battery pack case

I designed another battery pack case (yeah I have a thing for 18650's and a pretty much free supply of them) that can hold 30 18650 cells in either 3S10P or 10S3P configuration. The lid and body are meant to snap together but be sure to add plenty of glue since this thing full weighs over 1.5KG and you dont want a theoretical 200A of current to break free. Now this is the part where I have to talk about safety. Use a BMS! Remember the next three words: Battery Managment System-BMS. Get one which