SOTABEAMS Tactical Mini Mast Holder
This is a snap-fit holder for the SOTABEAMS Tactical Mini 20ft mast. I used PLA and PETG with great success in terms of compliance and retention. After about two years of use I noticed that the PLA part had slightly deformed and I reprinted in PETG.
I have included the F3D file so you can tweak the shape.
I designed this to fit on my Apache 3600 case. This utilizes one bolt hole for mounting and indexes with one of the ridges on the case's outer shell. If this does not work for you I would remove the single center hole and add two on the outer edge of the base.