Dehydrator Tray Extension for Commercial Chef CCD100W6 (formerly Westinghouse WFD100W)

Update 2021-02-24: If you're looking for an 88mm height, take a look at Sharkoctopus's remix at https://www.thingiverse.com/thing:4754084 which locks the pieces to each other all the way up.
Update 2020-09-23: francisesmodewhite found it does NOT properly fit the Rosewill RHFD-15001. Please see comments for more details.
Update 2019-05-04: Thanks to IsmaelPR1 for confirming that the "Commercial Chef CCD100W6" is the same as what was being sold as "Westinghouse WFD100W" when I bought it.

Many comments on a dominant e-tailer's site suggested this was a good food dehydrator to use for drying filament, but most also pointed out that you had to cut apart the racks, preventing its intended use for drying food, and Westinghouse doesn't seem to sell spare racks.

These extensions fit between existing racks to separate the racks enough to fit a filament spool in-between. NOTE that this is ONLY for the model WFD100W ... if you have the "101" model, see @mgg4's remix instead!

The 73mm high extension -- along with the height of the rack you put it on -- allows the widest spool I have (Taulman Bridge... just over 80mm) to fit with a filament clip still attached to the side. If you print just one set, this would probably be the most useful. This one is white in the photos.

If you have a big printer and don't need it in such small pieces, see the remixes from @alanerickson (2-3 parts) and @andreq (1 part).

I printed the 88mm extension set (yellow in the photos) before noting that I would get extra vertical space from the tray onto which I place the extensions.

The 28mm version was just to test fit; I never printed a full set. I think it would accommodate spools about 35mm thick, roughly 1-3/8" --- I've never seen any that skinny. I included it only because I had the file already, Maybe it would be useful if you print the 73mm version and find you really need just a bit more after all?

N.B., I don't think the "version 2" clips are really sturdy enough. Honestly, I keep using the set I taped together most often.

Version 2? (2019-06-25): One thing I've not been happy with is the flop and wobble at the top end, especially if/as the snap pins start to loosen a little over time. The v2segment88mm.stl file has a couple of square holes near each outer edge near the top and the v2clip.stl holds them together. The photos with purple filament show this version. Not sure how useful this is, but it made me happy :-) Let me know if you need a different height or the rather disorganized FreeCAD file.

Edit 2018-10-22: My wife has commandeered the dehydrator for the past few days to dry "hen-of-the-woods" mushrooms that grow wild around here. The pieces are too tall for the usual trays, so she's using these extensions. That 28mm version I never printed would have been perfect.