This is an update to earlier post about these trays.
I re-drew the tray to allow changing length and height using Parameters (Modify/Change Parameters). There are User params now for BoxHeight and BoxLength. Things adapts accordingly. If you find the slider fingers at bottom sides are not thick enough that too has a User Parameter. Separators are always 50% of box height.
I printed .25", .375" and .5" trays of 5.5" and 6.25" long in the quantities I need. There are a few more to print for drills. Next up will be drawing up some drawer guides and putting them in a small plywood carcass. I think they will all be spaced at .5" so I can add an aluminum drawer front and handle. Teh drawer front will hide the guides, and provide a place for labels.
The top photo shows an example of what motivated me to do something :-)
gerrit