I needed a way to organize my SMD resistors and capacitors. It is a very important feature that each compartment has its own lid. Much worse than losing a part is when it falls into a box where it shouldn't belong.
You can print a single compartment, or you can have a multitude of compartments in a tray, and keep those trays in a rack. If you need it, there's a funnel, which helps filling up the compartments.
The lid has two ball hinges, and lids are installed by gently pushing them on the tray (or box) in the open position.
I added a high density (HD) version, with more containers in the same 100x160 tray size.
I recommend to print the tray upside down, without support. The lids will need support because of the hinges, and if your bed adhesion is less than perfect, you probably want to use a raft,. The Prusa i3 mk3's smooth PEI build plate gives excellent surface finish, but I had to tweak live Z and temperature to get it right.
Make sure that the first layer isn't squished (elephant foot) because that will make the lids hard to close. In Slic3r print settings -> advanced -> elephant foot compensation = 0.15 mm worked for me.
For the lids use no fan, 0.2 mm layers, heated bed at 45 deg C for the first layer and 40 deg C for the rest. Keep hot end as cool as possible, I'm printing at 193 deg C (first layer 200). PETG might work better than PLA because its adhesion is even better.
I'm changing the lids a little so the hinges don't stick out that much and so are easier to print.
You should check if there's excess material on the ball joint of the lid, but then just install the lids on the box by pressing them in. When your PLA is rigid, it helps a lot if you do it in a warm room or over the heater. In cold air the hinges might break while installing.
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