My Gopro Session mount for the Martian Frame ( Alien clone) - I have not tried it on an impulseRC Alien but it might fit.
Protects the gopro well, but print in a reasonable density if you crash as often as I do ( and print a few for spares too:) It will need support for the top to print properly.
I bolt the gopro in with 2mm self tapping screws - the same ones used for the Immersion RC Vortex 285mm.
Scaled for slight shrinkage with ABS, calibrated on my machine ( Davinci XYZ) so if you try printing in other materials you may need to allow for different shrinkage rates.
Martian_GoPro_Session_mount_Final.stl | 344.5KB | |
QAZ210_Gopro_session_mount_door_fixed.stl | 92.7KB |