Desiccant Dehydrator Tray
thingiverse
This tray fits perfectly inside a food dehydrator shelf/tray to hold silica gel desiccant beads while still allowing warm air to pass through. It must be sliced correctly: 1.2mm wall thickness, no top or bottom thickness/layers, open infill style, right infill percentage. I used Triangles for an Infill Pattern with a Cura Infill Line Distance of 2.4mm, resulting in an Infill Percentage of 50%. The grid should be as open as possible without letting the beads fall through. Don't use Cubic or Gyroid or any other three-dimensional pattern, since they can result in closed cells. To add strength in the absence of top and bottom, I use the Cura features Connect Infill Lines and Alternate Extra Wall. This tray is designed to fit the Commercial Chef CCD100W6 (http://amzn.com/B075ZB3V9S), which is apparently the successor to the Westinghouse WFD100W. Although everything I read says to refresh desiccant at 80 or 110 or 150 degrees Celsius, obviously the tray printed in PLA won't stand up to that. So I set it at 113 Fahrenheit (45 C) and my beads were dry in 2-3 hours. I have the color-changing kind, so I can tell. When dumping the desiccant out of the tray after drying, make sure to cover the center hole with your hand so the beads don't fall through the hole.
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