We will add one more note in the assembly articles.
http://docs.rakwireless.com/en/RAK831 Pilot Gateway/Casing install tutorial/Gateway casing installation tutorial.pdf
Can you remove/ cut one side of strip? Why we don’t remove because heat sink is same dimension of entire converter board but can’t fit inside enclosure! If you buy enclosure, you just need remove one side strip and don’t put heat sink on top! We have another thermal filter for you.!
In addition, to help you cut the one side strip, Pls use tweezers and cutter to remove one side strip,passed cutter over border to make it easier to snap, and snapped it with tweezers. the tools we recommend to use below one