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Foamcore box: Filament dryer on heatbed
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Box from 3mm foamcore and corcer pieces. Can be used as a filament dryer.
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Updated at source:
Model information
- Source
- Printables
- Category
- Accessories
- License
- Creative Commons — Attribution — Noncommercial
Transform your print bed into a cost-effective filament dryer with this foamcore box! Easily assembled from 3mm foamcore and 3D-printed corner pieces, it features an adjustable vent for optimal moisture release. Use it to dry filament without investing in an expensive dryer. Watch the video for a comparison with commercial dryers.
Printing
- Material: PETG
- Supports: None
- Print Orientation: for edges: 45 degrees, as on picture below.
- Additional Settings: Turn on brim
Parts List
- foamcore sheets - cut according to template (PDF attached)
- 1x
- 4x
- 3D-printed corner pieces
- 3D-prit ned top vent
- optional - you can just punch holes or leave tiny gap on foamboard
Assembly
- Slide foamboard into grooves of 3D-printed corners
- Apply a bit of CA glue for extra stability
A3 template included for precise cutting of foamboard.
Placement on print bed:
I used sequential printing with adjusted height for this.

How it works:

Results:
PETG drying test. Ded on 60 ,75 , and then 85 °C.