Flames of War / Gruntz - Medium base with insert slots

There are already some flat medium bases compatible with Gruntz/Flames of War avaliable on Thingiverse but they don't have holes made into them to support the pewter/ Battlefront miniatures plastic circle basings. Unless you enjoy applying a heavier coat of flock/rocks - the edges kinda stand out on that design and this bugged me from an aesthetic variable point of view.

In this design will find three spacing variations for both x5 unit and x4 unit bases.

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