I based my changes on the Tactical Switchblade Comb by Kampflafer, but it works for this switchblade as well: https://www.thingiverse.com/thing:3668073

This print requires small supports, but it makes the whole structure much stabler once assembled. I've noticed that when you try to comb your hair the whole structure breaks apart because the comb (or blade) pushes the case cover to side. Using this part - it doesn't happen.