Summary

Introducing our DIY filament dryer box, the ultimate solution for 3D printing enthusiasts. This innovative design features precise temperature control, ensuring optimal filament drying conditions. With its automatic start and stop functionality, you can effortlessly set it up and trust it to maintain the perfect temperature, allowing you to focus on your prints without worry.

This dryer is made for filament spools with this maximum dimentions: Diameter: 215 mm and 75 mm width.

I worked on the development of this project alongside my friend @JuanSchiavoni_168106. He handled all the electronics, wiring, and firmware of the device, while I solely contributed to the 3D model design of the enclosure and its printable components.

One of the fundamental design principles behind this device is the complete 3D printability of its enclosure. Not only that, but each and every component has been meticulously crafted to perfectly fit within a Prusa MK3S+, ensuring seamless integration and a sleek, professional look.

The complete project file, which includes the engineering report, bill of materials, detailed assembly instructions, firmware, etc., can be found at the following link: DIY Dehumidifier for 3D Printer Filaments.

Printed files list

The list of components to be printed is detailed below:

	Description	Reference image	Filament	Qty
1	dry_box_baseBottom_v1.2		PETG	1
2	bearing_cover		PETG	4
3	optic_support_v1.0		PETG	1
4	racord_base_v1.2		PETG	1
5	handle_base_v1.1		PLA+ (or PETG)	1
6	handle_v1.1		PLA+ (or PETG)	1
7	dry_box_baseTop_v1.2		PLA+ (or PETG)	1
8	dry_box_top_v1.2		PETG	1
9	magnet_gate_base_v1.0		PETG	1
10	arm_servo		PETG	1
11	dry_box_gate_v2.0		PLA+ (or PETG)	1
12	electronics_case_mb_cover_v1.5		PETG	1
13	electronics_case_mb_bottom_v1.2		PETG	1
14	stepdown_support_v1.2		PETG	1
15	LCD-knob_v2		PETG	1
16	axis_cover_short		ABS	1
17	axis_cover_joint		ABS	1
18	axis_cover_long		ABS	1
19	axis_cover_nut		ABS	2

Important considerations

In the "filament" column, the suggested material for the prints is indicated, based on extensive testing. This is particularly important for the following:

1. The cylinders covering the threaded rods (items 16 to 19), as the weight of a spool can deform and damage PLA+ and even PETG printed parts at high temperatures, so ABS should be used for this print. Additionally, the odometer requires two pieces of noticeably different colors (white and black) for proper functionality.
2. The same condition applies to the lid, which will deform under its own weight above an operating temperature of 40°C, so PETG should be used for this.
3. On the other hand, some parts (items 5 to 7 and 11) can be printed in PLA+.

I must highlight that my friend @JuanSchiavoni_168106 managed to develop a highly precise temperature control, in fact, I would dare to say it is much better than that of most established brand products on the market.

I hope this project excites you as much as it does us. We invested countless hours in designing, iterating, and testing the entire system.

Upgrade your 3D printing experience with our reliable and efficient filament dryer box.

Happy printing!!!

Update 19/9/2023:

Related models

Filament diy dryer support for 3D printer

For mounting in the Prusa MK3S+ and other printers you can check this model:

https://www.printables.com/model/541556-filament-diy-dryer-support-for-3d-printer

Filament spoolholder for dryer support (on 3D printer)

If you need to continue printing while drying filment at the same time, you can check this model:

https://www.printables.com/model/587294-filament-spoolholder-for-dryer-support-on-3d-print