How can I rotate a ribbon 180 degrees instead of 360?

[Joseph_Oster]

There are many threads on this forum about Möbius strips:

Curvature match ends of moebius strip?

Riccardo Majewski ( @maje90 ) produced this five years ago and we had some good fun with it: [custom_moebius_madness] [intersectingmobiusstrip_2015_Oct8c] [intersectingmobiusstrip_2015_Oct9c] [intersectingmobiusstrip_2015_Oct9d] [20151010_113416] Also here:

Curvature match ends of moebius strip?

I believe the only difference between the two Rotate components in the yellow group is that you reversed the Z vector on the first one. The smaller one simply rotates the pFrames around each planes normal Z axis. [moebius2_2020May07a2] moebius2_2020May07a.gh (17.5 KB) [moebius2_2020May07a]