Needed a simple base for my old nineties models from Games Workshop. This is an approximation of the original bases with the diagonal slit not in the center and a weakpoint in the base to easily create an optional straight slit as well after the fact.

Added "25 mm" under it to make finding the right base size easy.

Printed with the top down to make it smooth.

This object was made in Tinkercad. Edit it online https://www.tinkercad.com/things/iFft6FBCE9H