Revised 3M-8S stacker + optional 6M stacker

Most of the Medium-based figures are 2" or more, so the existing stacker only fit the Riot and Hunting Horror figures. Columns have been extended to fit all existing Medium-sized figures.

(EDIT: File has been revised to fit Chthonians, and I included an optional Medium-only stacker if you want it easier to figure out optimal print quantities.)

Rough height estimates:

- Riot (x2): 1 1/2"
- Hunting Horror (x2): 1 1/2"
- Colour out of Space: 2" (AH2E ONLY)
- Moonbeast: 2" (AH2E ONLY)
- Star Vampire (x2): 2"
- Stone Snake (x2): 2"
- Tendril of Nyogtha: 2" (AH2E ONLY)
- Wailing Writher: 2" (AH2E ONLY)
- Flying Polyp: 2 1/8" (AH2E ONLY)
- Elder Thing: 2 1/4" (AH2E ONLY)
- Gnoph-Keh: 2 1/4" (AH2E ONLY)
- Chthonian (x2): 2 5/16"