Ultimaker GoPro " Selfie " mount with Extensions

GoPro " Selfie " mount with 100mm and 150mm extension options.
adjustable and fixed GoPro interface options.
http://youtu.be/crTzQY31LvA
Hollow inside with a vertical stiffener, i am hoping it will make it bouyant.
Options to extend the lengths, not sure how many continuous extensions will be viable when added together, just keep printing and adding them to find out.
The adjustable and fixed mounts will need to be rotated to suit, ensure the temp supports are on the build bed. For some strange reason the programs i use to model and fine tune these designs, dont seem to work well together when orientating things. :-(
Glue, tape or pushfit these together, depending on your print quality.
This design has endless options, skeleton handle, bolt together extensions, bolt on GoPro interface, lanyard option. For now i am just playing about with my pre-V2 version to seeing how it handles its working life, with the intention of using it for skiing.

Instructions

I use Cura on my Ultimaker Original to prepare the print.
Free Download of Cura http://software.ultimaker.com/ For the handheld and extensions i used
0.25 layer height
shell 0.8
btm / top 0.8mm
fill density 25-40%
BRIM SUPPORT on cura
printed with regular PLA

for the two GoPro interfaces i used
0.2 layer
0.8 shell
0.6mm btm / top
fill density 25-40
NO SUPPORT