TBS source1 frame turtle mode fin with battery holder

a turtle mode fin for the team black sheep source one fpv drone frame. battery holder modifies from the wizard's 1300mah 4s lipo holder (thing id: 1693131)

PRINT IN TPU!!!!!!

update 1.1:
spot the difference in the new battery holder compared to the old one

Update 1.2:
updated fin, it will take less time to print but be stronger and look better, removed battery holder