Drum for Rock or Media Tumbler by naviathan

Last crawled date: 3 years ago

This is a customizable drum with built in agitators for a media tumbler (rock tumbler). I made this for my Affordable Rock Tumbler Build, but I wanted it to be customizable so I can adjust the size without changing all the variables and sizes for every little piece. I guess they call it parametric? I don't know. I call it simple.
The DrumSize vector is the height (DrumSize[0]) and the width radius (DrumSize[1]) of the drum. So if you want your drum to be 100mmx100mm then you need to set the vector to [100,50] because radius is half the width of the circle. WallThick is of course the wall thickness. How thick do you need the walls of your drum to be. finCnt is the number of agitator fins inside the drum. You want more, less doesn't matter. The script will dynamically adjust the spacing and size of the agitators. The agitator fins are 5% the width of the drum wide and 10% the width of the drum long (how far they protrude). The lid is fixed to have a lip that is 10% the height of the drum. This gives plenty of coverage in my tests so far to keep a good solid connection while tumbling around for days on end. $fn is the number of fragments a circle is broken into. This effects how smooth the curves and angles will be. It's an OpenSCAD built in variable, but I include it because some people like to adjust this variable. I've found 60 to be pretty clean, but keep in mind that the more fragments you break it into the larger the resulting files and gcode will be and the longer it will take Customizer to render it. Anyhow, if Customizer is working (as of this writing it's not) play with it and have some fun.
EDIT: Added a lidTol variable for lid tolerance. A positive value here will increase the inner diameter of the lid. You can use this to account for how snug or loose the fit of the lid is to the drum.