Hi, this is what you need to do, 1 make sure there's no collider on the blur disc , continue as normal and export the part,  you will need to have it load at least once.   Once you've loaded it and checked that it does indeed have a drag equivalent to a small truck, close the game. Now in the main KSP folder find your PartDatabase.cfg Its here that all the drag cubes are stored.   Also worth noting that should you change a model after first import, you should delete the PartDatabase.cfg as
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