Cessna strut mount assembled.

Probe mount saddle

Currently making 3 of these on Shapeways. Random component of an Airball probe. Shapeways is really useful and easy but ... should I buy my own 3D printer?

Drawing C172 strut profile

I've had these drawing instruments since 1983. Here are two attempts at picking off the C172 strut profile from my profile gage. Use only as directed; your mileage may vary; no warranty.

Cutting jig for tubing

Jig for cutting polycarbonate tubes to make Airball probe bodies.

Display unit mounted

Display unit has a backplate and RAM mount ball. Almost like a real instrument that they sell downtown....

Measuring Cessna strut to make a mount

Ordered better XBee modules

To those that helped me figure out the XBee modules confusion: I have ordered a pair of these 2.4GHz 60mW ones, and some Taoglas adhesive antennas to go with them, and we'll see....

https://www.sparkfun.com/products/8710

http://www.mouser.com/Search/ProductDetail.aspx…

Progress on display

Today's (small) Airball accomplishments:

* Fabricated and installed plastic backs for my display units;
* Ordered some RAM ball mounts to attach to these backs, for easy mounting in cockpits;
* Ordered 60mW 2.4 GHz XBee units and Taoglas adhesive antennas;
* Starting to learn Eagle PCB CAD.

The looming task now is to design a fixture for mounting the probe to a pole on top of a car to do some more or less controlled road testing at different alpha/beta values, and in so doing to also see how we're doing on reliability for the communications and for the spurious sensor board freeze.

https://www.amazon.com/gp/product/B0012TRIZI/