[SOLVED]Tail Double Rotation not working as intended

Question

Hi Kent, when I rigged the tail with the double rotation as you did, it didn't work as no rotation was applied when i rotated the tail ctrl. However after playing around with the settings, I checked 'invert' under each of the axis in the copy rotation modifier and it worked. But I don't understand why??

Answer 1 · 2018-10-10T13:54:58Z

Kent Trammell replied October 10, 2018 1:54pm

I wonder if your deformation bone's axis is opposite of the control bone. That could explain why inverting it would be a solution. You can turn on bone axes visibility in the Armature data properties under display.

Answer 2 · 2018-10-12T05:09:18Z

replied October 12, 2018 5:09am

Yep, you're right, the axis were opposed to each other. Thank you I understand now.

Answer 3 · 2018-10-18T13:13:37Z

Kent Trammell replied October 18, 2018 1:13pm

Awesome! Usually my rigging fix suggestions have only a 5-ish% success rate :)

Answer 4 · 2019-01-17T11:46:56Z

replied January 17, 2019 11:46am

I encountered this problem as well during this exercise; how is it that I would be able to manually align these axis?

Answer 5 · 2019-01-21T22:50:56Z

Kent Trammell replied January 21, 2019 10:50pm

@dbchesties I believe you want to "roll" the bone with CTRL + R in armature edit mode. You can hit CTRL + R + 9+ 0 if you want to roll it 90 degrees specifically, and so on.