EZ Roller Drybox Feeder For Snapmaker U1 Bambu A1

Complex methods of analysis were used to engineer optimal specifications for parameters. This is no ordinary filament delivery system design.
 

This meticulously designed system is the result of extensive research, experience, precise calculations and countless hours of R&D. This insures not only great success rates to minimize wasted time and filament on poor designs for you, but also offers the best protection and performance for long term use with your 1kg filament rolls in a these perfectly oversized cereal containers.

The highest surface area-to-volume ratio desiccant container, saving on desiccant 

no unspooling low friction R188 roller bearing system and

easy filament swapping front loading access!

You will need - 

Oversized 6.3l Containers (not the smaller 4l containers that got popular)
Amazon containers

BELOW IS PER CONTAINER

4 R188 bearings 

Amazon R188 bearings

2 16-20mm M5 with nuts for the base

3 20mm M5 with washers lock washers and nuts for the Bracket

Amazon M5 screw set

3 M5 or #6 wall mounting screws or anchors for the wall mount.
Amazon Drywall mounting anchors

1 Pc4 M10 and a little bit of tube

Amazon Pc4 M10

1-5mm desiccant beads

Amazon desiccant beads

Optional hygrometers

Amazon Hygrometers

9mm drill bit for the Pc4 M10

5mm drill bit For the Base

Amazon drill bit set

tightening tools for the screws and nuts

Just push the base back as far as it goes with the desiccant holder to the back hold it down with painters tape if you want and drill one of the two holes out. Bolt it and drill out the other one. Easy!

The bracket for the wall mount goes up into the tapered part of the bottom. It should be a tight fit against the ridges to hold centered while drilling holes.
 

Want to know more?

The Science Behind Our Product:

1. Container Volume: 6.3L (0.22 cubic feet)
2. Filament Spool Size: Approx. 8" diameter, 2.5-3" width
3. Desiccant Rule of Thumb: 5-10 grams per cubic foot
   Detailed Calculations:
   • For the 6.3L box alone:
   0.22 cubic feet × 5 grams/cubic foot = 1.1 grams (minimum)
   0.22 cubic feet × 10 grams/cubic foot = 2.2 grams (maximum)

• Accounting for the filament spool:

Standard recommendation for a typical 1kg spool: 10-20 grams

Our enhanced protection: Approx. 20 grams

Silica Gel Space Calculation:

• Silica gel density: approximately 0.7 g/cm³

• Space needed for 20g of silica gel:

20g ÷ 0.7 g/cm³ = 28.6 cm³ (1.74 cubic inches)

Our Precision-Engineered Desiccant Boxes:

• Designed to hold 20g of silica gel each

• Dimensions: approx. 153mm × 43mm × 5mm (6.02" × 1.69" × 0.20")

• Volume: 153mm × 43mm × 5mm = 32,895 mm³ (2.01 cubic inches)

Innovative Thin Vertical Desiccant Box:

Our desiccant boxes run vertically along the sides of your container:

1. Maximizing surface area for efficient moisture absorption
2. Improved air circulation for uniform drying
3. Designed for even the smallest 1mm beads further maximizing the surface area-to-volume effectiveness

Advanced Roller System:

• R188 Bearings: Upgraded from typical 608 bearings or ZZ bearings for significantly reduced friction

• Tapered Roller Ends: Prevents filament spool "walking" during rotation

Scientific Backing:

• Fick's Law of Diffusion: Moisture absorption rate is proportional to exposed surface area

• Natural convection currents enhance desiccant effectiveness

• R188 bearings minimize filament feeder motor stress during printing

• Tapered roller ends design maintains spool alignment

Why Choose this Precision Filament Drying Variant?

1. Scientifically calculated and positioned for optimal moisture absorption
2. Compact, vertical front loading design maximizes space efficiency
3. Lower friction R188 bearing roller system for smooth filament feeding
4. Tapered roller ends prevent spool misalignment
5. Transparent methodology backed by solid research
6. Robust system for high humidity levels

Don't let moisture or filament flow friction compromise your prints and wear your motors. Trust in our scientifically designed Precision Filament Drying Variant to keep your filament dry and feeding flawlessly.

The EZ Roller Drybox Feeder: A solution for 3D printing enthusiasts wanting to utilize their space in this way and combining advanced engineering with a cost-efficient design. Our product features innovative vertical desiccant box positioning, R188 bearings, and tapered roller design, all meticulously calculated to provide optimal moisture control and filament protection.

The vertical desiccant box placement maximizes absorption efficiency while adapting to various humidity levels. This unique configuration, coupled with our use of R188 bearings and tapered rollers, ensures smooth filament feeding and prevents misalignment during printing. Our design is backed by scientific principles, including Fick's Law of Diffusion, which supports the effectiveness of our vertical positioning strategy.

We've carefully calculated the space needed for silica gel, optimizing every aspect of the design to deliver peak performance. This EZ Roller Drybox Feeder not only protects your filament but also simplifies maintenance. Our vertical design allows for easy access and regular recharging of the desiccant, ensuring consistent performance over time.

Experience the difference that precise moisture control and advanced, cost-efficient engineering can make in your 3D printing projects. With the EZ Roller Drybox Feeder, you'll can enjoy superior filament protection, smoother printing operations, and less maintenance. 

Remember to check and recharge your desiccant for continued peak performance – Keep em hot and pooping!!! Have fun!


All done with PETG, .4mm nozzle and .20 layer height

All Strength same -

5 Wall Loops
5 top 5 bottom
15% Cross Hatch infill

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1.

BASE

2hr 15min, filament 66.24g
 

Quality -

Aligned seam
Arachne walls

Support On-

Normal

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2. (Print 2 times)

1 ROLLER PIN WITH 2 ENDS, and 1 FRONT, 1 REAR BEARING CAPS

1hrs 24min, filament 10.64g (x2 = 2hrs 48min, filament 21.28)

Quality -

\\ SEAM RANDOM //

Wall Arachne

Support On -

Normal

Others -
Print by object
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3. DESICCANT CONTAINER WITH CAP

3hrs 6min, filament 38.69g

Quality -

Seam Aligned

Wall Arachne

Support On -

Tree

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4. HOPPER

1hrs 5min, filament 31.58g

Quality -

Seam Aligned

Wall Arachne

Support On -

Tree

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4. HOOKING MOUNT BRACKET

1hrs 4min, filament 26.28g

Quality -

Seam Aligned

Wall Arachne

Support On -

Tree

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5. WALL MOUNT

2hrs 20min, filament 75.54g

Quality - 
Aligned
Arachne

Support -

Enable Tree
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6. HYGROMETER MOUNT 
 

16min 8s, filament 7.48g

Quality - 
Aligned
Arachne

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Need Pic

7. FEET

43min 8sec, filament 16.58g

Quality - 
Aligned
Arachne

Support -

Tree