Noticed today a little update on the iFixit teardown, they opened up the linear resonant actuator.
Teardown Update: Just to make sure we were getting our fill of secret sauce, we popped the top off the haptic feedback motor, a linear resonant actuator (LRA) that powers Switch's HD Rumble.
On the inside, this vibration motor seems fairly standard. It's essentially a voicecoil installed in a moving mass assembly, flanked by a pair of powerful magnets. However, it's interesting that this LRA seems to vibrate along its short axis, while many haptic feedback motors that we've seen vibrate along their long axis.
Note that these LRAs look very similar to the ones we pulled out of the Oculus Touch controllers, HTC Vive, and the Steam Controller.
We took a second to pop open a Oculus Touch haptic motor and it seems to be internally identical to this one.
