Extension for Commercial Chef CCD100W6 Dehydrator

The important points:

• An extension to use the 235mm (9.25 inch) CCD100W6 dehydrator for drying filament. 
   
• I don't have much space, and wanted to use the smallest dehydrator I could find that still had at least 10mm of clearance around the edge of a spool for the air to circulate. 
   
• No supports needed. 
   
• Vent plugs added. The lid lets out too much heat to get all the way to temp without covering a few vents.
   
• V6.1 same as V6, but without the bottom. With extended drying at high heat (ASA) the bottom warps so an original dehydrator tray would need to be used. As a bonus all 6 sections fit on a single bed for the Prusa MINI.
   
• V6 uses a tongue and groove snap in connector to provide a better seal on the walls but still uses a piece of filament to connect the center. It also has a thicker bottom to better prevent warping and allow a bit more airflow under the spool. Test piece to verify filament will thread through holes and flow calibration clip are in the 3mf file on bed 1 when opened in PrusaSlicer.
   
• V5 uses a coil of filament used to fasten parts together with a drop of superglue at each end after pulled tight. Test piece to ensure hole accuracy is in 3mf file on bed 3 when opened in PrusaSlicer. 
   
• The common 45x26mm humidity and temperature sensor fits in the sensor window. I used some that go down to 10% humidity and up to 158°F from Amazon.

The not so important points:

• This was my first real CAD project (only ever used Microsoft Builder and Tinkercad before). Probably too complicated for a first project, but it came out well.
   
• I was having trouble designing connectors and realized I already had hundreds of yards of cheap pin material, so one thing led to another and the thing gets wrapped in filament. A bit excessive, but it looks cool except for a bit of a mess around the sensor. V6 switched to a snap in connection for the walls.
   
• It can fit inside the dehydrator with or without the original trays. Trays, the original lid, or more extensions can stack on top. 
   
• The dehydrator knob temperature marks were not accurate on mine, but if you pull the knob off there's an adjustment screw in the center (needs a tiny flat screwdriver such as is found in a glasses repair kit) I set the knob to 140°F then pulled it off and turned the set screw until the actual temp agreed with the knob setting; wait a few minutes between adjustments for the temperature to stabilize. Of course that isn't needed if you have the digital thermometer in the window, but it is nice to have it accurate for drying food too.
   
• Worked great for drying TPU that was wet straight from the vacuum sealed bag.