Filament Spool Drying Box with Extra Large Air Contact Surface Holes V2

This is a spool dryer box with a super large air contact surface; the 2mm holes on the side support various types of desiccant; there is no need to remove the dryer box when replacing filament without a spool, and it is also convenient to push out the dryer box and transfer it to other spools. Please feel free to ask questions or give suggestions in the comments

It is recommended to fill the desiccant to 60-80% capacity; this allows the spool to roll and agitate the desiccant.

Notes:

• Since the bottom and top use a breathable mesh formed by line infill; please do not apply force to the mesh surface. If you need to apply force, please modify the infill type of the modifier (grid or honeycomb recommended) and its density;

How to use?

1. Fill with desiccant;
2. Align the recessed pointed corner of the top cover between the two tensioners and insert it;
3. Rotate clockwise until you hear a “click”, at which point the top cover is locked into place;
4. Directly insert it into the center of the filament spool!

Opening the top cover counter-clockwise will require more force

Tolerance adjustment for the main body

After completing the adjustment, you can print the main body; there is no need to repeatedly print the top cover;

Why is tolerance adjustment needed?

 Different brands, batches of filament, their sinkage rate or damp filament, ambient temperature, and other factors can cause inconsistent hole sizes; this model requires slightly higher assembly precision to ensure the lid locks correctly; therefore, it is necessary to adjust the XY hole compensation to prevent the locking mechanism from being too tight or too loose; so it is highly recommended to perform calibration adjustment before the first print

Modify the XY hole compensation by printing test pieces, it is recommended to adjust the following parameters to correct the tolerance:

+0.1 = inner hole diameter increases by 0.2;

-0.1 = inner hole diameter decreases by 0.2;

Initial values for this model's print profile

PLA Main Body (Cylinder):

X-Y inner contour compensation: 0.1 mm

X-Y outer contour compensation: -0.05 mm

PETG Main Body (Cylinder):

X-Y inner contour compensation: 0 mm

X-Y outer contour compensation: 0 mm

For other unadapted spool models, you can leave a comment with the spool core diameter or try using a configuration scaled to an approximate size (no guarantee it will work perfectly)

Update Log:

V1 version was removed on 20251106; this print profile is no longer available

V2 | 2025-11-16

• Updated V2 version | PLA | suitable for Bambu Spool | 55mm diameter print profile:

  1、Cylinder: X-Y outer contour compensation: -0.05mm

V2 | 2025-11-06

• Used a better tensioning structure;
• Optimized the top cover structure, with a better handle;
• Optimized the locking mechanism; now requires a bit more force to open;
• Reconstructed the top and bottom ventilation holes, implemented using line infill, which shortened printing time;
• Optimized the size and arrangement of the side ventilation holes;

V1 | 2025-05-29

• Initial release

Acknowledgments

The following individuals provided very valuable suggestions and feedback

@zyw  @风雨and蓝雅  @秋天的童话  @user_1196472220