Concept ADI, Dont laugh

[Krebs20]

This is a very rough concept for an ADI for the a10. I have not gone into deep thought on programing, or anything electrical. Purely a mechanical approach to the problems.

 

https://doc-0c-84-docs.googleusercontent.com/docs/secure/ha0ro937gcuc7l7deffksulhg5h7mbp1/su6vnj2rhfb3vh3siirjp76g8tr79g0h/1277186400000/16790293838767086549/*/0B0Xmrov9PaCwN2QxNGNjMTUtZWMyZi00NjUyLTlhZWEtMmEwMTgxMTRkNWI4

 

A little turning action.

 

https://doc-14-84-docs.googleusercontent.com/docs/secure/ha0ro937gcuc7l7deffksulhg5h7mbp1/765789kushhpk9me8d6t7j36tt4sdi1b/1277186400000/16790293838767086549/*/0B0Xmrov9PaCwMTdkNTYyN2QtNzAyNS00MDI0LWFhMDgtNGYxMDIwZjNhYWE0

 

 

As you can see in the next photo is it 2 axis around a tennis ball.

https://doc-14-84-docs.googleusercontent.com/docs/secure/ha0ro937gcuc7l7deffksulhg5h7mbp1/j04qq91mrmll66tes8181p0b079cac72/1277186400000/16790293838767086549/*/0B0Xmrov9PaCwOTM5YTQ2ZWEtZWNlNi00Y2EzLTgwZTEtNTUwOTJmZDc0YjEx

 

https://doc-0g-84-docs.googleusercontent.com/docs/secure/ha0ro937gcuc7l7deffksulhg5h7mbp1/vk9tbt7np44holuk59he80oqil0ofuab/1277186400000/16790293838767086549/*/0B0Xmrov9PaCwYzY2MTQ0NDUtYjFkNi00YjYzLThlMGEtNTIzNThjZTZiM2Ri

 

I figure if I put a step motor on, or in the tennis ball so It would rotate up and down. Then rotate the whole setup clockwise, counter-clockwise on the other axis.

 

Using a headphone type jack. i can get it to rotate in the back continuously without having to worry about the wires becoming tangled.

 

https://doc-0g-84-docs.googleusercontent.com/docs/secure/ha0ro937gcuc7l7deffksulhg5h7mbp1/p81sff35lpmgd79rnlngh4u0vsq00ni9/1277186400000/16790293838767086549/*/0B0Xmrov9PaCwY2I5M2FmNjEtZDA2NS00MmY4LTliNGItNjk3MmRlNWM3OWUw

 

My major concern at the moment is that I would have to find a headphone jack with 4 contacts. As I believe that the step motor will have to be able to be smart enough to return to center after I get shot down. I am eager to hear anyone's input on this subject.

 

If I was to try this all the way I was thinking a Pool Que Ball would work very nicely painted up. A gimbal setup in place of the soda bottle top would be setup very similar to a pto yoke. I would most likely attempt to mod one to work.

 

As for electrics. Ill Figure that out when I can make this top go. For now. Input or ideas on how to solve the home made ADI would be a fun read. Its not an easy problem and I would like to see others solutions.

[Avilator]

I've been kicking around some ideas for this same issue as well. Your solution is a good one, me likes the headphone jack idea! IRL, they use slip rings to transfer electricity through a joint with unlimited rotation. About the stepper motors, they need little optical flags to tell them when they are centered. The motor turns until the flag blocks a photocell directly across from a led/bulb. It then knows it is centered. About returning to center after a crash, I would think (speculation here) that the motors don't "forget" where they are unless they lose power. During a flight reset, they shouldn't lose power, and when the sim re-initializes with the ADI centered, the motors will respond.

BTW, Mike Powell's Flight Deck Books are perfect resources for the type of thing you're doing. I have both of them, and they are excellent reads.

Good luck with your project!