This is a Lasiodora parahybana (Brazilian salmon pink birdeater). She is female and approx. 7" before the molt. The entire process took about 10 hours. (Yeah, seriously.)
I woke up to find her flipped over in her hide, on a silk mat she made during her month long premolt:

The fangs emerge:

Carapace and abdomen start to emerge:

Legs are coming out:

Nearly there!:

Legs are almost completely out, she's pulsing them now to get the juices flowin:

Legs are entirely out, soft white fangs are visible:

Flipped over: (For clarification, she did this on her own, no time during the molt process was she touched, poked, flipped, etc.)

The exoskeleton:
