Filament Drying Tray for Kmart/Anko Dehydrator

A complete dehydrator tray and cover for the Kmart loving mates down under.

https://www.kmart.com.au/product/food-dehydrator-42974871/

This is intended to replace the trays the dehydrator came with so you can save it for its intended purposes. A hygrometer hole is added to the cover for quick monitoring. The tray is designed to be stackable*.

*not tested, I wasn't patient enough to print another copy of the tray.

It is designed with a 0.8mm nozzle in mind but I'm sure a 0.4mm nozzle should work just fine as well. Just use your fattest nozzle and the tallest layer height to save time. NOTE the bottom of the rack is 4 × 0.8mm for the folks trying to work out the perimeter needed. Minimal support is needed for the overhang where the tray walls meet and the fastener counterbores.

I printed mine with natural PETG. It was noted in the test prints that PETG can potentially sag under the load and heat for 6 hrs. The centre of the rack should be sitting on the hot air outlet for the current iteration so sagging is not a critical concern, but might be an issue if you want to stack them.

The stp are included as usual if you need to fix up some tolerances or my bonkers design choices.

BOM

Tray

• 4 - Rack
• 1 - CentreCap
• 12 - M3 × 8
• 12 - M3 × 10
• 24 -M3 nuts

Cover

• 4 - Cover
• 1 - CoverCap
• 1 - CoverBCap (for stopping the hot air blasted straight into the hygrometer)
• 8 - M3 × 10
• 8 - M3 × 30
• 16 - M3 nuts
• 1 - Hydrometer

UPDATE

The centre pillar/air duct added to support the upper rack if anyone wishes to stack the trays. PLEASE NOTE that they have not been tested. Please let me know if you have run into any issues or problems.

Replace the CentreCap with the new pillar version. The new version removes the chamfer and the counterbore to allow the pillar to be attached on top. The 8 - M3 x 10 are to be replaced with M3 x 16. The small version has the centre hole modified to accommodate the smaller air duct.

The large duct has a diameter of 39mm. It should accommodate most 1kg spools. I have measured spools from Aurarum, Bilby3d, Polymaker and Prusament and they all have mounting holes with diameters of 50mm or more.

The smaller version is for Bilby3d 200g spool with its annoyingly small mounting hole. The duct is split into two parts. Part 2 is to be screw onto part 1 after the spool is inserted.