2 Spools Printable Filament Dryer

Remixes Available for other Food Dehydrators:

• Silvercrest 350W / Quigg 350W Food Dehydrator: https://www.printables.com/model/494734-2-spools-filament-dryer-for-silvercrestquigg
• MisterChef® Professional Food Dehydrator, 250W: https://www.printables.com/model/499723-2-spool-dryer-base-for-us-model

16/05/2023: Added Assembly manual to support assembly.

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I was using a generic food dehydrator as a filament dryer (Muhler DHY-500T). It was not very handy to use to dry filament because the spool sits its side, and was weird to put it in and out and I could only dry one spool at a time, which was not very energy efficient. So I took out the electronics from the dehydrator and designed a box from scratch.

This is a fully functional 2 spool food dehydrator with a 250W motor (in my case it's 250W, but there are food dehydrators ranging from 150W to 450W). As expected, please use PETG or above (ABS, ASA, etc) to print all the parts since the temperatures should be above 50degC. For the feet you can print in PLA, but I advise in TPU for a nicer feeling. I also included in the rear a nice power cord lock, so even if you pull it up strong it won't rip anything. The lid on the top opens with two hinges in the back, for this M4 Screw and Heated brass inserts is needed, but if you don't have brass inserts you should be fine just with a long M4 bolt and a M4 nut.

I included the STEP file in case the electronics of your food dehydrator doesn't fit on those holes you can easily modify it to fit your electronics.

This filament dryer is compatible with filament spools as big as 21.5cm (exterior diameter) & 8.5cm (thickness)! So should be compatible with any filament spool available. There's also plenty of space to put some silica bags to keep the humidity down.

BOM:
Mandatory:

• Food dehydrator (should be quite generic) - You can buy these used from 5$ to 15$ max
• 4x Bearings 608 (608 / 608rs / 608zz, etc…)
• Round Cheap Hygrometer - 2$ for a pair (Search AliExpress “Mini hygrometer”)
• 2x Heated Brass Insert M4 (any lenght) and 2x M4 bolts (any lenght above 10mm) OR 2x M4x25mm bolts + 2x M4 nuts - For the hinges
• 2x PTFE Tube (to feed filament out of the dryer)
• 2x zip ties (to lock the PTFE tube)
• Self tapping screws to lock the electronics in place, to lock the power cord.

Optional:

• 5mm heating insulation pad to cover the whole inside walls and increase the heating capabilities and efficiency.

If you enjoy it, consider tipping (any amount, even 0.05$ is appreciated) to my Paypal ([email protected]) to keep funding more nice projects like this. Even if you don't feel like donating, putting a like and dropping a appreciation comment goes a long way to support it!