WIP: F/A-18C Throttle Quadrant

[jrsteensen]

So...Huey...kinda lost interest in. Getting back into F/A-18C pit with the impending release.

 

My goal for this pit is to be able to build the entire pit with a X-Carve 1000mm and a Prusa i3 MK2S 3D printer and hand tools. One minor deviation from this is my throttle quadrant, which will be able to mostly be done by hand with a drill press, grinder, and sander. (Unless I can tweak my X-Carve to mill the .125 THK plate required.)

 

The entire pit with models and drawings will eventually be released under a CC license.

 

So far this throttle quadrant will function identically to the real throttle with solenoid driven Flight IDLE and AB detents, and provisions for attaching steppers/servos/linear drivers for auto-throttle, as well as exactly realistic locations for each throttle position.

 

The only intentional deviation so far is friction will be set by the nuts on either throttle arm. Friction lever will be used as an axis. (I've gotten waaaaay too used to having zoom under my fingers.)

 

The only thing I don't have so far is enough data on the throttle grips to replicate them well. If anyone else does, I'd really, really appreciate it.

Edited July 7, 2017 by jrsteensen
Typos

[jrsteensen]

Forgot some pictures from the WIP design.

 

[7rooper]

Nice! I can't wait to see it becoming real

 

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[K-lu]

Hello

Good start!

 

Do you know this site:

http://Http://hornetpits.org/index.php

 

Actualy, i make F-18 simpit plan, and when is ready, i send on hornetpits:

 

 

and the WIP:

 

20170610_203440

[WhoMadeWho]

Very nice start! What are you using for the CAD work? I have an 1000mm X-Carve and it works quite well after some initial tweaking.

[jrsteensen]

SolidWorks.

[jrsteensen]

So, do I want to use steppers, servos, or a linear actuator to drive the autothrottle? (Looking for a little brainstorming here.)

 

Primary concerns are they will remain linked while manually actuating the throttle, and cost.

[Razi]

Do you know if it is possible to export the retractable idle and AB detents?

[Myst]

I might have misinterpreted the pic but it looks like in that model you require the finger lifts to get past the AB gate?

[jrsteensen]

I might have misinterpreted the pic but it looks like in that model you require the finger lifts to get past the AB gate?

 

Both gates (Ground IDLE and AB) have a solenoid driven detent. There is also a hard lift for the AB gate. This is based off of real throttle parts, so those gates are copied from the real thing.

Edited September 15, 2018 by jrsteensen

[Buckeye]

Accurate

 

 

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[jrsteensen]

Interesting. That rail is mic-ed out from the real throttle parts.

 

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[Buckeye]

WIP: F/A-18C Throttle Quadrant

 

Interesting. That rail is mic-ed out from the real throttle parts.

 

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Which one?

 

Anyway, AB detent is a push through. Idle a finger lift necessity.

 

 

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Edited September 16, 2018 by =Buckeye=

[jrsteensen]

Which one?

 

Any AB detent is a push through. Idle is always a finger lift necessity.

 

 

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F/A-18A throttle rails and arms.

 

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[jrsteensen]

Gents,

 

I got the chance to look at this a little closer. What appears to be a hard lift after the AB detent is just a relief for the finger lifts. They are a little thicker in that area than the original because they are printed vs milled.

 

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[Myst]

Gents,

 

I got the chance to look at this a little closer. What appears to be a hard lift after the AB detent is just a relief for the finger lifts. They are a little thicker in that area than the original because they are printed vs milled.

 

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Sounds good :thumbup:

 

Howd you go with the throttle grip? Did the blueprint posted on hornet pits help out at all?

[jrsteensen]

Sounds good

 

Howd you go with the throttle grip? Did the blueprint posted on hornet pits help out at all?

It is a valuable asset, even though quite a few key dims were missing. We did secure a real inboard grip, so between the two we should be able to extrapolate the outboard grip pretty well.

 

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