[Lao Teng] Passive Rewind Spool Holder, Compatible with Third-Party Spools, Fits All Enclosures, Screw-less Design

=====20250825 Update=====

• Regarding the rice container adaptation issue, I found that everyone provided different dimensions. Since I don't have a rice container on hand, I can't confirm who is right or wrong
• Therefore, the rice container configuration is temporarily removed until I purchase a rice container, complete the adaptation, and then re-upload it

=====20250822 Update=====

• Added 83mm narrow profile
• Adjusted narrow drying box height

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• Previously, I released a fully 3D printed enclosure, and then some friends mentioned that they had already purchased finished enclosures and didn't want to waste them, so I designed this filament spool holder
• Key features are as follows:

1. Simple assembly, minimizing hardware as much as possible. The entire structure requires no screws, only essential and irreplaceable hardware such as bearings and rubber pads, reducing costs
2. It attaches to the box with double-sided adhesive tape, so you don't need to drill holes in the box except for the filament outlet, which reduces damage to the box and avoids the error-prone step of drilling
3. Convenient printing, with very few printed parts. The A1 can print all parts in one go, and the A1 mini can also print the main accessories in one go, excluding the drying box
4. Controlled external dimensions: with a standard filament spool in place, the height is 20.8cm, front-to-back length is 22cm, and left-to-right width is 9cm for a single plate, and 36cm for four plates. These dimensions can fit most sealed boxes, making it universally compatible

• Hardware used (per single plate):

1. 5 x 608zz bearings
2. 2 x large wheel anti-slip rubber rings, inner diameter ≤45mm, width 25mm. You can purchase a small section of rubber tubing and cut it yourself, thickness is not limited, I used one with a 3mm wall thickness
3. 2 x rubber O-rings: outer diameter 22mm, wire diameter between 3-3.5mm can be used
4. 1 x one-way bearing: model 081412, which means inner diameter 8mm, outer diameter 14mm, thickness 12mm. I used the outer octagonal type
5. 1 x smooth shaft: diameter 8mm, length 25mm
6. 1 x spring: outer diameter 6mm, length 15mm, wire diameter 0.5mm

Installation tutorial: