Isostar set and Osostar set

The Isostar and Rewind Isostar are 2-step machines with Inside Star and Mono Star. As noted in the description of the respective videos, I later found they had been previously published with different names.
The Reverse Isostar and the Rewind Reverse Isostar are 2-step machines with Reverse Inside Star and Mono Reverse Star.
Despite the long name, the Rewind Reverse Isostar is extremely elegant and in my opinion the most elegant Mono Reverse Star machine.

The Isostar set is a Quadruplet. The Osostar set is the corresponding Quadruplet when Inside is replaced with Outside. There are also other sets with Goofy Mono Star or Goofy Mono Reverse Star, that I haven't recorded.

Isostar:

Rewind Isostar:

The Reverse Isostar was the hardest of the set to figure out. I came up with this in March 2025:

Reverse Isostar (2025 version):

In 2026 I recorded what I consider a better version, which more directly forms the Rewind Doublet with the Rewind Reverse Isostar.

Reverse Isostar:

Rewind Reverse Isostar:

Osostar:

Rewind Osostar:

Reverse Osostar:

Rewind Reverse Osostar:

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