dual_milwaukee battery holder

this is a housing only.
you will need to purchase your own adaptor and electrical connectors to suit the battery...or...model and print your own.
I used PETG_Carbon Fiber.
Supports...yes, which ever way you place it on the bed
Infill...I used 80%, but also did 100%. Can't see any reason why you couldn't use a lot less
80 mm/s speed on K1 MAX
tried with and without raft, both work fine