20mm Sphere (Boilie) Roller (fishing bait, slingshot, etc.)

thingiverse

I use 28mm balls for my slingshot ammo. I've created a few of these ball makers to help me make my own slingshot ammo. So typically, I use modeling compound. Roll a log of it a little bit bigger than 28mm in diameter, then place it perpendicular to this ball maker, then I get 7 perfect little spheres each time. You will need to print three of these and assemble them together. The Americans use this exact same type of tool to roll "balls" which is basically dough bait for fishing. Using this tool you can get perfect-ish little spheres. So by all means you could use this to roll your own dough bait for fishing. This can also be used by polymer compound artists to make perfect little sphere beads. If there is interest, I may make this into a customizer so that you can designate the sphere size, number of rods, and have it automatically generate a sphere maker for you. I designed this in CAD. You can find the files here...