Updated to version 3g, with thicker walls and better tolerance on the arm, and it works with ABS - 6/13/2015
Get a home theater experience with your Galaxy S5! This case uses an internal channel to re-direct the sound from the back to the front, increasing the volume (+10 dBA max) and clarity of the rear speaker. I use it to watch videos while cooking or doing other non-computer work.
I may update the source files with slight modifications, but they would be very minor at this point.
NOTE: This part was designed to be printed in PLA, which doesn't shrink as much as ABS.
Parts are in inches, and many of you will have to scale them up by a factor of 25.4. Parts are not oriented correctly in Thingiview. No support structures needed, although they can help. Watch for warping on the case. Sanding may be required on the kickstand axle and snap-nub.