Nikolas_A

Seems like 7.125" with a quick look

It's a MS25212 panel, so width is 5.75". If you find a good photo and scale it, you can calculate the length, rounding it up to a multiple of .375"

Are all 5 MFDs the same size on the Chinook?

Looking nice! Two suggestions: Dome switches are better than tactile, more realistic activation forces, cheaper, longer lifer The knob is an overkill, print in clear, mask and paint. That's how the real ones are made

That's my workflow too. I design the 3d assembly in NX, export the gauge face to dfx and import in Inkscape for lettering and scales. I do miss the constraining capabilities of NX in Inkscape. I wish someone made a 2d CAD program with the capabilities that a parametric 3D CAD program has in the scetch environment...

That's what the slip rings are for

I used both, I forgot to mention hollow steppers!

Yes, they can. Google slip rings. Here's my prototype: (it doesn't turn infinitely in this clip but it can. That's just a demo Arduino sketch, swinging both axes back and forth a certain amount)

May I ask why you would want to do that? At the F-16 at least there is no rotary switch with continuous rotation. Other a/c? Or do you want to use it as an encoder?

That panel is not MS33558. Matter of fact, MS33558 is mostly used on instruments, not panels. Most panels are Gorton Condensed, Futura Condensed etc

For that price you can get a real, mil spec one: https://www.ebay.com/itm/253398337058

This is not necessarily so. The load on the stepper is light, not likely to loose steps. However, when you have optical zero reference, you can always use it in runtime to re-calibrate. If, e.g. you have an optical switch set to trip at 0°, everytime it trips you can check if your calculated position is indeed 0° or else update it

No such thing in the Viper, just incandescent lamps. They are either on or off

Polarizer film?

An A-7 HUD control panel, if anyone's interested: https://www.ebay.com/itm/165961779495