Summary

I'm not sure how much use this will be for anybody else, but I needed several different sizes and dimensions of rubber rollers for a project i'm working on, so I made this. Print it in two parts (the core and the mould separately), assemble, and then pour liquid rubber (I used silicone) in and allowed to cure. Once the rubber is set, the plastic piece is cut off (go at it with wire cutters)
I included the solidworks file so any sizes can be made. all dimensions, including the groove in the center, are parametric, in the