Articulating Wall-Mounted 90 deg Twisted Arm in 2 Parts

After trying the articulating wall mounted arm in combination with doesntfearzeus's rotated arm I quickly broke off one of threads on the rotated arm. This was because the thread that is printed pointing upwards always has a weak spot at the thread base and I didn't want to experiment with infill to see if that makes it last longer.

To remedy this problem, I created a very simple re-design of the original arm, which can be printed in two pieces and easily put together.