Heated filament Dry-Box V1 for 3D printing materials

DIY how to make a simple heated dry-box for your 3D printing filament that you can use whilst 3D Printing.

3D printer parts and enhancements

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A visit to E3D many years ago inspired the use of a reptile heater mat to keep filament 'ready for use'


For an overview of the build and a video all about it - please take a look at my Blog post here - https://richrap.blogspot.co.uk/2018/02/diy-heated-drybox-for-3d-printing.html

Bonus device -
I also have a little bonus invention for monitoring your filament coils while they are in Zip-Lock-Bags - here is the SpoolCheck sensor.

Please let me know if you make one - thanks.

Materials and methods

Materials can be bought from eBay and made up at home - See blog and video for further details -

For the temperature/Humidity sensor just search eBay for 'Mini LCD Celsius Digital Thermometer Hygrometer Temperature Humidity Meter Gauge'

The main component I used for heating is a simple flexible reptile heater - you can find these on eBay for just a few USD - Search for '15*28CM Adjustable Temperature Reptile Heating Heater Mat'



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hi there,

Will this do the same job as a food dehydrator because i am torn between the 2.

Thank you

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