Wiki: 3D structures lack documentation

[manugimenez]

The wiki section regarding 3D structures is empty. This is particular problematic for 3D valves, a type of component needed if the user is planning to fabricate using Neptune.

As a suggestion, I leave the following text that might be included in the wiki.

3D valves
This statement define entities both in the control (drawn in red) and flow (drawn in blue) layers.

• The presence of a 3D valve in the flow layer is similar to a node that accepts up to two connections: an input and an output. The valve will block or let pass liquid in the flow layer depending on whether its presence in the control layer has pressure or not.
• The presence of a 3D valve in the control layer has just one input expected to be connected to a liquid source in the that layer.

Important:

• 3DValves declarations need to specify orientation - horizontal or vertical - and that parameter defines the location of the input/output of the valve in the flow layer, and the input location for the part of the valve in the control layer. Check the figure.
• 3DValves declarations should be made in the flow layer section of a MINT file, and before declaring any channel connecting to them.