Improved version as of March 2025. This version has pieces up to 279mm long. For a version with pieces split to accommodate smaller print beds (e.g. Mk3 or Mk4 printers with max size 230mm), check out https://www.printables.com/model/1234195-storage-insert-compatible-with-space-hulk-for-norm
This insert will fit either 3rd or 4th edition Space Hulk.
For magnetizing, I recommend 60 mil flexible magnetic sheets, and 10mm x 2mm round neodymium magnets for the miniatures.
The author marked this model as their own original creation.