Four-spool moisture-proof drying box, more stable central shaft structure, with desiccant box, superior to bottom roller design, compatible with medicine boxes

Updated 2025.3.11:

Strongly recommended for printing:【Fully Optimized Version (incorporating tolerance optimization and nut compatibility with all filament spools)】This version thoroughly optimizes tolerances, and the nuts are compatible with all brand spools. For A1mini users, the base can be printed using the version in【A1mini Printable】

For those who have already printed previous versions, please see the following red text reminders:

PS: Different filaments exhibit varying shrinkage rates, resulting in differing tolerances. My PETG filament, without any pre-treatment, inserts smoothly…

If you encounter assembly difficulties, try the following solutions:

1. Use an X-Acto knife to lightly scrape the 45-degree edge of the spool holder (this usually resolves the issue)

2. Apply a small amount of lubricant or WD-40 to the spool holder

3. Reduce the size of the holderPrint at 99.75%

Smooth Filament Extrusion Companion (Highly Recommended):

Nut required: AMS-compatible drying box internal feed port for smoother extrusion, preventing PTFE tube bending and jamming. Only 20g, from 小凡不是逗逗凡 - MakerWorld
Nut not required: Pneumatic connector nut with internal material guiding function, compatible with MMS single pneumatic connector

Compatible drying kit:

4-spool drying box & drying chamber Polydryer+Sanlu S4 combined version, supports amslite

Compatible insulation kit (requires drying kit):

Pharmaceutical drying box insulation kit

If the pharmaceutical box seal is insufficient, print the following:

Improved sealing clasp for pharmaceutical sealed box

This may be the most stable drying box bracket solution currently available

Abandoning the commonly used chassis roller method

Thoroughly resolves issues such as carding, deviation, and the spool being easily lifted when lightened

Extremely simple installation; paired with this aesthetically pleasing pharmaceutical box, the overall result is both beautiful and practical

Printable with A1mini; some trays are optional. Printing all accessories requires only approximately 800g of filament

Users with AMSlite rotary shafts can use this:

https://makerworld.com.cn/zh/models/591680#profileId-523808

I switched from the rotary shaft to this version, and it's more stable than the rotary shaft

I feel the rotary function is useless, and I've abandoned the rotary shaft

Introduction:

Parts List: (No bearings required, box and accessories cost less than 60 yuan)

• 1 box (pictured in the video)
• 4 M6 nuts + M6 pneumatic connectors (straight through type)
• 1 meter x 4 PTFE tubes (adjust according to placement)

For the filament retraction (rewind) function, this solution is recommended for its simplicity, low cost, and practicality

Video introduction:

MW address: https://makerworld.com.cn/zh/models/451614#profileId-369878

Because I use amslite, I overlooked the retraction requirement for filament changes without amslite

This solution is the simplest and most user-friendly, and it doesn't compromise the drying box's airtight seal

Updated 2024.12.14:

1. Addressing user feedback regarding breakage at the central shaft base connection, the print settings have been optimized, with the infill rate at the connection increased to 80%

   

2. Addressing user feedback regarding protruding nuts due to a lack of recess in the aperture of spools from brands such as Tuozhu, Aileku, and Creality, flatter nuts have been added

   

   

Updated 2024.12.11:

Due to variations in filament shrinkage rates, some users have reported overly tight assemblies. A 0.5mm tolerance central shaft base version has been specifically uploaded (the original version already has a 1mm tolerance, resulting in a total of 1.5mm tolerance).

Print one of each version and see which size is more suitable for your material. Then print the remaining two.

Why print the remaining two? Try sanding the unsuitable one and applying some lubricant; it should then be possible to assemble it.

I use PETG filament, and the original print size is perfect; insertion is smooth

I've also noticed some users modifying print parameters to compensate for xy holes. This must remain at the default settings and should not be changed arbitrarily