This is a variation of the Gear Tentacle. Invented by me.

You need

There is an "All" File that has everything you need in one place.

Here are all the individual parts for a full assembly:
1 "Triple Gear"
1 "Middle Gear"
2 "Double Gear 1"
2 "Double Gear 2"
2 "Double Gear 3"
2 "Double Gear 4"
2 "Double Gear 5"
2 "Double Gear 6"
2 "Final Gear"

There is also an optional tool that you can print to connect the pieces a little easier.

Print Settings

Standard settings for your filament. No supports.

Assembly

I made an assembly video, you can find that here: Watch the video

There is also a PDF guide included in the download.

Technical info

The Double Spiral prints with roughly 60g of filament and needs 4 hours to print with standard settings.

The filament used is Protopasta's Partly Sunny Yellow.