See also the featured design: Fidget Spiral Sphere https://www.thingiverse.com/thing:6704812

New spiral fidget design based on a 14 sided 3D shape (Tetradecahedron) with cool looking double vortex /star pattern (top and bottom). I wanted to avoid the thin/weak top parts of the tapered designs and produce something different. The inner part can pass freely through the outer part in both directions (pass through).

The "fingers" on part 2 of this design are quite strong and do not taper to very thin points -avoiding stringing issues.

Easy print - supports not required. There is a generous clearance of 0.5mm (per side) between the parts. Size 45 x 45 x 52mm.

Recommend to use a brim when printing both parts for good build plate adhesion, 3 walls (1.2mm wall thickness) and 20% infill. See print settings for other tips.

After printing check the sliding surfaces are smooth and free from blobs- do not force together if it does not slide freely - remove any blobs if resistance to sliding.

14/7/24: V2 version added - reversed twist direction to align with conventional threads and finer mesh. See uploaded make for V2.

PLEASE NOTE: the design license is Creative commons, attribution, non-commercial, no derivatives - you cannot sell this design or physical prints. Sharing without ATTRIBUTION (including link to this webpage) is not allowed. If sharing you cannot change the license type.

Check out my other designs: https://www.thingiverse.com/galaxy33/designs

⚠Warning⚠
Be careful in environments with young children and pets! This model contains small parts. If not properly stored in an environment with young children or pets, it may lead to accidents such as accidental ingestion or injury. If infants or pets are present, please take appropriate measures depending on the situation, such as refraining from 3D printing or storing in an appropriate place.

Do not apply strong force! Applying strong force to a 3D printed model or throwing it may damage the model and lead to accidents such as injuries. In addition, debris from damage to the model may be accidentally ingested by infants or pets. If the model is damaged, dispose of it immediately.

Store them in an appropriate place. After 3D printing, store the model in an appropriate place out of reach of young children and pets. Proper adherence to the precautions will ensure the safe use of the model.