fidget
passthrough
impossible passthrough
master printer
fidget passthrough
reverse twist
reverse twist passthrough
passthrough fidget
reverse twist vortex
twist passthrough
impossible vortex
vortex fidget
passthrough set
triangle passthrough
PLA print
PETG print
desk fidget
stress relief toy
satisfying fidget
fidget set

50
5
About this model
This reverse twist set winds opposite from the rest of the series, and that backwards feel is the point. The three passthroughs are fully compatible with each other, so I can print them in colors I like and use them as a set.
My favorite is the triangle passthrough. It is especially addictive, with a unique geometry that feels different from the others. I printed the set in black PLA and royal blue PLA.
Print settings
- Infill: 35% to 40%
- Infill type: Adaptive cubic
- Perimeters: 2
- Layer height: 0.2 mm
- Top and bottom layers: 4
- Print speed: 50 to 60 mm/s
- Fan: 100% after the initial layers
- Brim: none
- Supports: none
- Raft: none
- Filament: PLA or PETG
Tips
- Inner piece clearance: For clearance, set the inner-piece XY Size Compensation to -0.35. In my slicer, this is the XY Contour Compensation or Horizontal Expansion setting. This is already applied to the files, so I just use the slicer as provided unless clearance issues come up.
- Handle the triangle piece gently: Its edges are weaker, so I avoid rough use with that one.
My Patreon page is still available at patreon.com/MasterPrinter, but I do not actively update it anymore.
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The BEST (Circle) Impossible Passthrough

Originality of the Model
The author declares that this work is their personally original model
This model is licensed under the following terms:
This work is licensed under a Standard Digital File License. Digital files have a strict non-commercial, personal use only license.
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital file or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including remixes of this object). You can not host these files on other digital platforms, web stores or cloud repositories. The objects may not be used in any way whatsoever in which you charge money, collect fees.
Models(1)
Reverse Twist Multi Shape Passthrough Print Profile.3mfDesigner8.15 MB
2025-09-07









