No one likes running out of TP.

This is a **simple, one-piece spare toilet paper roll holder** that hooks cleanly onto the side of a toilet tank — no drilling, no hardware, no adhesives, and no supports required.

Over time, several toilet paper manufacturers have started using **smaller core diameters**, which meant my original design didn’t always fit as nicely as it used to. So this version is a **full redesign**, featuring a **compliant post** that gently adapts to core sizes **down to 36 mm** while still holding the roll securely.

**Key Features**

- **Hooks onto the toilet tank** — installs in seconds 
- **Compliant core post** adapts to varying roll sizes (down to 36 mm)  
- **Holds rolls gently**, without rattling or falling off  
- **Two versions included**  Single holder (holds 1 roll) & Double holder (holds 2 rolls)
- **100% 3D printed** — no hardware, fasteners, or glue
- **No supports required** 
- Designed to be **rigid, stable, and clean-looking** beside the tank  

**A quick, honest note 🙂**

Yes — a skinny, rigid post would also fit almost any roll.   I just *liked* the idea of making it compliant so it adapts, centers the roll, and holds it a little more thoughtfully.  
Call it over-engineering… but the fun kind.

**Printing Notes**

This is a functional part, so strength matters more than default slicer settings.

**Recommended settings**

- **Material:** PETG recommended (PLA, ASA, ABS also work)
- **Nozzle diameter:** 0.4 mm  
- **Layer height:** 0.2 mm  
- **Line width:** 0.4 mm  
- **Walls:** 4 (≈ 1.6 mm)  
- **Top / Bottom:** 5 layers (≈ 1.0 mm)  
- **Infill:** 40% Cubic  
- **Supports:** None required  
- **Print orientation:** As provided in the STL / 3MF files  

**Join the LogicalPlanet Discord**  
https://linktr.ee/logicalplanet

**Visit my blog for more details and other designs**  
https://www.logicalplanet.com/

**Revisions and Updates**  
I occasionally update and revise my designs. When I do, I’ll document the changes here. Check back periodically for the latest revision notes or if you’re experiencing any issues with a model. Please email me at **logicalplanet3d@gmail.com** if you would like me to make a revision or have comments about this design.


spare-toilet-paper

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