More Solidworks Parts

Accelerometer: 

The dimensions of the board and pins are estimated; the length and width of the red part (representing the size of the accelerometer) is accurate. All boards are assumed to be somewhere around 1/16in thick. The connector design was based off of a part from the Arduino Mega file. There are also two resistors and some wires soldered onto the perf board but I'm ignoring them in this model.

Barometric Pressure Sensor:
The black connectors are again taken from the Arduino Mega files. Everything else is estimated (on the large side).

Temperature/Humidity Sensor:

Dimensions taken from the datasheet. Some measurements (like the angle of the two slanted cuts and the thickness of the back plate) are estimated. 

Capacitor:

Really rough estimate of dimensions for an 1000 micro-Farad capacitor. 

I'm working on the assembly of the box with all the parts inside tomorrow.