Dual pedal setup

[NAX228]

Today I did some drawing. It's based on photos i did see on mycockpit.org, and a friend at flightdecksoftware got me hooked.
There is some fine tuning to be done, but its basicly there. Looks like a easy thing to construct (to easy?), exept the pedals. I have to find a way to do those.
The height and width is not exact. I have to find some measurements since this have to fit into the pedal casing, so small adjustments will come.
I have chosen to keep the mechanics over the floor because this will allow adjustments back and forth if your legs is longer/shorter. Since there will be a casing the only part going in the open is the crossbeam, and that will be hidden behind the CDU-bay.

Overview


Bracket to support the bolt that will pick up the rudder movements. Have to be quite rigid, thicker bolt than this one i guess.


Gas struts to give the right feel. They have to be free to move out while the other one is pressurized, or else there will be no nullzone. The movement won't go this far, but heck. Its just a V1.0 drawing.

[jackpilot]

That is a clever design.
Making the pedals might be the easiest part though!
(Any good Machine shop can do that for fairly cheap)
Two "2cents" comments:
-Braking interfacing may be tricky to implement with this design
-The  horizontal T part has to be high enough because if too low the vertical pipe for each pedal may jam in the T part opening and will not travel long enough to actuate the system.
All in all, if made rigid enough, it looks promising.
Cheers.

PS: very pro drawing! I wish I could do that for my TQ, would have saved me a lot of trial/errors!

[NAX228]

I also think the T have to be high enough, but exactly where that is will have to be tested.
Very small pics. I can't get them really detailed in here. tried in the albumsection too.
Thanks for comment!

[NAX228]

V2.0
I could not get around the problem with the T across the pedalrods so I tried with some sprockets. this will also make a much more tidy construction with less moving parts.
Wery small pics here, but will upload to gallery.
In my head this will work...

Modified with sprockets:


Wire between center-sprockerts under floor:


Toebrake mechanism with gas struts:

[fsaviator]

Nice design!

What are you using to make the drawings?  It looks fantastic and easy to make out.  Wish I had those skills.

[NAX228]

I use sketchup to do the drawings. Check link under. It's free and really really easy to use.
Although I have done a great deal of drawing past 6 months and surely got more used to the program and it's functions, you will instantly feel that you can use it.
It has a good help section so if there is anything you wonder if you can do, you probably can and get the help needed via web.
The software is freeware, but you can also upgrade to a pro version. In the pro version you get a few new features, i.e. export to dwg. The freeversion is good enough.

http://sketchup.google.com/

[NAX228]

Now got the gears for the motion transfer. I will use 3 simular gears of this type: http://no.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=5215897
The colums from gear up to the pedals will be welded directly on to the gear and i will use rectangular steel for this.
The two sprockets on the axle will have a distancer steel pipe between them and the center sprocket will be welded on to a 12mm rod going through the floor.
This will make the design/build even less complicated.
I will update my drawings according to how the design will become.

[fsaviator]

I use sketchup to do the drawings. Check link under. It's free and really really easy to use.
Although I have done a great deal of drawing past 6 months and surely got more used to the program and it's functions, you will instantly feel that you can use it.
It has a good help section so if there is anything you wonder if you can do, you probably can and get the help needed via web.
The software is freeware, but you can also upgrade to a pro version. In the pro version you get a few new features, i.e. export to dwg. The freeversion is good enough.

http://sketchup.google.com/

Thanks.  I've been meaning to give sketchup a go.

Warren

[NAX228]

Just submitted my first model: Mitre Gear
Think I have used 4 hours on that one... most of my workday  don't tell the boss

[NAX228]

New pedal model made and uploaded to the sketchup warehouse.
Measure 15x23 cm.