Pet food can portion guide

I have a lot of trouble eyeballing “pie slices” for my cats' canned food, so I made this guide to help me more accurately portion each can.  Tabs for thirds, fifths, and sevenths are shaped differently (square, dome, triangle) and can also be painted for color-coding as well.  I used standard hobby enamel paints, but nail polish or other acrylics would work too.

I printed mine in PLA plastic, with the tab side on the print bed.  No supports, brim, or raft needed.

Fits most 5.5oz pet food cans; Solidworks file included if you need to make changes for your cans.  Use Onshape's free version for easiest importing and editing.