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Polar Science Labs 2 of 4
Make sure you have upgraded the Polar Science Labs 1 of 4 belts to MK2 and inserted to MK3 before adding this blueprint.
Make these upgrades (see the second screenshot) before placing Polar Science Labs 3 of 4: Before next upgrade: (see second screenshot) - Upgrade Belts MK2 -> MK3 - Add extra Matrix Lab height (13)