I wasn't able to unlock it. Each segment could bend up or down (never straighten to its original orientation) and the angles were never right. Do you have a link to a video of the lockpicking minigame in Sherlock? Were there separate difficulties with different rules and limitations?
I'll take a look and make sure it's working as intended. You're right, in the game you can rotate 360 degrees, at least if you're using the mouse! I must have missed that. However, I think the lock is always a static, unchanging puzzle with the same shape that you need to match.
In the Museum I decided it would be fun to make a more systemic, randomizing lock, although if it's not working correctly that may not be the right approach :-)