More Cabin air servo work

Hours: 2.5

With my cabin air servo mount worked out for the right side, time to translate it to the left.

I started with my cardboard pattern to match everything up for the left side. Everything looked good, so I started cutting out the bracket out of 0.032in aluminum stock.

Test fitting for the left side

I recently ran across this very helpful video on how to properly use aviation snips. This made it a lot easier to cut things like the bracket.

Cutting the bracket using some of the tips from the video to cut a sacrificial strip of metal to keep everything straight.

Cutting the bracket out of 0.032in aluminum
Cutting a sacrificial strip to keep the rest straight
Long edges cut
Completed the cut of the bracket

Once I completed cutting it, I removed the protective plastic and rounded the corner and edges.

Corners rounded and edges deburred

Then time for the final test fit in the airplane before match drilling the holes.

Test fitting the bracket
match drilling the holes that attach the bracket and vent to the side skins

All worked well, here’s the completed test fit in action:

Cabin Heater fluid valve

The third and final modification I’m making in the cabin air department is the valve that controls the heater fluid that runs through the heater.

The standard installation controls this valve using a Bowden cable connected to a plastic switch to be mounted in the cabin.

So on to some prototyping to figure out a bracket to operate the valve using the servo instead.

Figuring out the travel distance of the valve
With the travel distance figured out, time to mock up a bracket
Mock bracket mounted and servo "installed" to test it working all together

Looks viable, here’s the cardboard prototype in action:

1 thought on “More Cabin air servo work

  1. Pingback: Making a heater valve bracket - Philip's Sling TSi Build Log

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