Real Throttle and Pedestal conversion project

Hallo All,

I don´t know with the Trimwheels @ the moment. I like the new design much more, but there is also much work to change. I think i repaint only the original. Will see...

For the Lever-interfacing, I will do the same as Beret. Later i go to the FABLAB and made an 3D Print for the turn point in the box and cutting an Acryl with the laser for the Poti- and maybe a Toothwheelsupport.

Because of the motorization:
The problem is also that we need something like a poti for the correct Trimwheelposition. I'm not sure, but I think a stepping motor can still query the positions, or? An advantage would be that you could make the trim manually.
For the Integration: I think something like a Toothwheel from a bicycle that works with the Chain?!

Does anyone know if you can drive a stepper motor, like this one, with a Opencockpits Card?

Cheers Florian

By the way: The last day i pulled out the Throttle from the pedestal, Heavy workload and very much screws. I hope all the Screws find the way back to the right hole. :D
http://www.mycockpit.org/forums/atta...id=11628&stc=1http://www.mycockpit.org/forums/atta...id=11629&stc=1http://www.mycockpit.org/forums/atta...id=11630&stc=1

Hi Florian,

There is no need to build toothwheels or a chain to drive the trim wheel shaft. I have seen photos of our fellow cockpit builders, also with genuine throttles and they have mounted a motor directly to the shaft.

Regards,

Ben

Hi Ben,
The Chain is already there and for the responsible for the attack of the Trimwheelend. Do you have a link of these photos that you have seen? And which Trim Wheel Shaft did you mean, can you explain it with a photo maybe?

Regards,
Florian

Hi Florian, check your PM.

Some more parts to play with --

https://s31.postimg.org/hyjgkuu5z/IMG_4498.jpg
Radio panel + Switching


https://s31.postimg.org/qi2uim2if/IMG_4528.jpg
Parking brake panel


https://s31.postimg.org/x9t9lgrhz/IMG_4531.jpg
Captain side flood lighting

https://s31.postimg.org/qxe4bmofr/IMG_4532.jpg


https://s31.postimg.org/j61zqt9o7/IMG_4534.jpg
WAMCO bulbs to replace the blown bulbs!

https://s31.postimg.org/v97bedkqf/IMG_4535.jpg
This is the flood panel -- I've pretty much figured out all the connections, but one has me really puzzled, the SLIDER/WIPER connection on the pot for the underglare flood light (left pot).

Is anyone familiar with this potentiometer? There is a double redundancy (two pots) connected to the same shaft. 4 wires exit the pots (2 for the top, 2 for the bottom), they are the ends....but where can I find the wiper connection? There are no other wires.

Big mystery...

Ben,
Put a meter across the two connections and turn the pot, resistance will change as it may just be a rheostat. Just a fancy resistor connected in series with the bulbs. Turning the pot changes the resistance and hence brightness. Early GA planes used this method, very crude.
Les

Hi Les, I think you are absolutely correct - it also looks like a rheostat. I will attempt to wire directly.

Thanks!

Just make sure the pot is a wire wound one, has to be able to take Bulb current.
Les

Hi All,

Nice Stuff Ben! From where did you get it?

The last days im interfacing the two Levers and it works now! ;) Making a 3D Print and passing it in the socket of the lever. The Diameter for this is between 17mm and 18 mm depending on printer accuracy. Inside the Printe is a hole where i put an Axis aluminum rod at its end a gear sitting connected to the potti.
I think this Videos explain it better.
https://www.youtube.com/watch?v=wB_YRMhTpyA
https://www.youtube.com/watch?v=4OKqoHLtSy0
https://www.youtube.com/watch?v=s9gVkpGR__c

For the Trimwheel-motorization i got some very nice inputs and it will be realized with a NEMA 17 14:1 Planet Geare, HKT22 optical Encoder that back sitting on the stepper and a Arduino with LUA Script. The Encoder Problem with the 0 Position is no problem because the original Trimwheelconstruction has an end stop on each side, so i can programming an initializing for that.

Cheers
Florian

Quote:

---

Originally Posted by iwik

Just make sure the pot is a wire wound one, has to be able to take Bulb current.
Les

---

Hi Les, IT WORKS.

http://www.mycockpit.org/forums/atta...id=11643&stc=1

I am very surprised this 16 year old piece of equipment is functioning....Amazing bringing it back to life. I believe the 2 rheostats are there not for redundancy, but because 1 controls the left section underglade, and the otherside controls the right so the current doesn't drop in the bulb series.

Right now I have the bulbs wired in parallel running of one 12V controlled by the rheostat, it isn't too bad so I think I will leave it as it is.

The integral back lighting is also wired up -

http://www.mycockpit.org/forums/atta...id=11644&stc=1

It seems most of the bulbs are blown on the flood capt panel...I am having trouble removing the grub screws on one of the switches, so I can take the panel off and replace the bulbs...but I guess that will be another story, another day for this cockpit builder.

Quote:

---

Originally Posted by tcane

For the Trimwheel-motorization i got some very nice inputs and it will be realized with a NEMA 17 14:1 Planet Geare, HKT22 optical Encoder that back sitting on the stepper and a Arduino with LUA Script. The Encoder Problem with the 0 Position is no problem because the original Trimwheelconstruction has an end stop on each side, so i can programming an initializing for that.

Cheers
Florian

---

Very nice Florian, let me know how you go with the motorization. Brian has also offered his SIOC script so it looks like there are several ways to go by this --

1. Opencockpits + SIOC
2. Phidgets
3. Ardruino + LUA (your solution).

I have a dc motor with encoder on the way to test so we will see how that works. I may just go with OC because it looks like there are already scripts our fellow cockpit members use.

I think a dc Motor is not so accuracy like a stepper, but with a gear it maybe works also good like an Stepper. I have a DC Motorcard from OC here and my first plan was also to make it with SIOC and a DC Motor.
The Arduino +LUA works with a Phidgets Nema17, or did you mean only with a Phidgetscard? Which Software did you use to communicate with Jeehell?

The main problem for me is to Trimm it manual! I think when the stepper works i can´t grab in to the Handwheel and trimm manual, like in real when you are on Ground and making the preflight procedures. Maybe someone has an idea how can i fix it? Or did you mean there is no problem with manual trimming?

Hi Florian, check out this thread -- http://www.mycockpit.org/forums/show...t=30694&page=2

Robert has written a program to interface with a DC motor. You can write to him for a copy.

It was programmed for the FDS throttle but should work with any DC motor. Feedback is provided to a potentiometer, I haven't figured out that part yet.

Yes, it allows for manual trimming on the ground.

Changing the bulbs for the trim on the throttle...its was actually very enjoyable seeing it all light up again :)

http://www.mycockpit.org/forums/atta...id=11652&stc=1Before the new bulbs are soldered on -- you can see there are several blown.
http://www.mycockpit.org/forums/atta...id=11653&stc=1http://www.mycockpit.org/forums/atta...id=11654&stc=1All ready and set to go!

Backup A320 MIC (for the 3rd seat) -- guess I will use this for 'decor'.

http://www.mycockpit.org/forums/atta...id=11719&stc=1

ATC/TCAS Panel

http://www.mycockpit.org/forums/atta...id=11768&stc=1http://www.mycockpit.org/forums/atta...id=11769&stc=1

Managed to get the backlight working --

http://www.mycockpit.org/forums/atta...id=11770&stc=1

Hi guys, i need your help can anyone make a replace piece of the C.G wheel trim indicator? mine is cracked here is a shot:
http://www.mycockpit.org/forums/atta...id=11772&stc=1http://www.mycockpit.org/forums/atta...id=11773&stc=1http://www.mycockpit.org/forums/atta...id=11774&stc=1

Also OmniAtlas or someone can show me how the detents are made? the only working ones that i have are the idle rev, the CLB-MCT-TOGA are missing i think 'cause it is all stripped so i need to replicate them can someone make a closer shoots?

And I was wondering who was the lucky ebay buyer of this quadrant :)

In the downloads section of mycockpit.org there are a series of accurate (official?) drawings for the throttle assembly. If I remember correctly the detents are produced by a spring/ball mechanism in the counter arm assembly that's about a meter below the throttle...

Yes, I was also wondering who was the winning bidder for this ebay TQ :)

Looks like you have the new style trim wheels which is great.

Regarding the detents, Airbus has a throttle control unit interface which is quite a complex affair --

http://www.mycockpit.org/forums/atta...id=11775&stc=1

Yes, guys i was the lucky winner ;) Thanks for the diagram, but can't figure out the mechanical box working, on a side note where do you got the replaced bulbs?

Hey,

i have around 40 bulbs in spare. Drop me a line if you need/want some.
I'll have to check the price again, but i think it was around 80 cent per piece.

Volker

Quote:

---

Originally Posted by dcutugno

Yes, guys i was the lucky winner ;) Thanks for the diagram, but can't figure out the mechanical box working, on a side note where do you got the replaced bulbs?

---

Bulb information is available here -- http://flightsystem.wixsite.com/airbus/builder-notes

I am transitioning away from WIX.

The new blog can be accessed at http://soarbywire.com

what is best stepper to use direct to trim wheel, Nema 17 or 23 0.9?

Hi,

I use a NEMA 17 with a 14:1 Planetary and Fidget Optical Rotary Encoder HKT22
that works with a DRV8825 and a ARDUINO. For communication with the Flighsimulator i use a LUA-Script, but this and the Arduinosketch still needs some improvement.
Here is a short Video:
https://www.youtube.com/watch?v=6xcAzqjXcHA

Hi tcane

May you can give us the LUA-Script for the communication?

Regards Guido

Hallo Guido,

Sorry @ the moment i can´t give you the Script, because it´s still under development and i´m not the author of the script.
I would like to ask, but he is currently not attainable. Sorry. :(

Cheers
Florian

Not related to the pedestal but I thought I'll share some images of the gear mechanism. Its stuck now -- does anyone here have any experience with solenoids? Looks like it may need 28 Volts AC supply?

Regards.

https://s17.postimg.org/620s5uzx7/img_4741.jpg


https://s17.postimg.org/yg67pqnh7/img_4742.jpg


https://s17.postimg.org/52aha5krf/img_4743.jpg


https://s17.postimg.org/qpzfkll5n/img_4744.jpg


https://s17.postimg.org/ozgej43mj/img_4746.jpg


https://s17.postimg.org/ahj7b4cbf/img_4747.jpg


https://s17.postimg.org/j12l8vknv/img_4748.jpg

With the help of Simon, solenoid is now functioning and the gear can be released.

https://www.youtube.com/watch?v=4198...ature=youtu.be

AFT overhead circuit breaker. Looks complex. Maybe one day JL will implement failures to facilitate this piece of hardware ;-)

http://www.mycockpit.org/forums/atta...id=11848&stc=1
http://www.mycockpit.org/forums/atta...id=11849&stc=1

Thales MCDU. Hate to do it, but only way to get this to work is to gut the machine....

http://www.mycockpit.org/forums/atta...id=11855&stc=1http://www.mycockpit.org/forums/atta...id=11856&stc=1http://www.mycockpit.org/forums/atta...id=11857&stc=1
http://www.mycockpit.org/forums/atta...id=11858&stc=1http://www.mycockpit.org/forums/atta...id=11859&stc=1

If you find a way to use the monitor, let me know. I have also one at home, but i haven't find a way to use the monitor.

I believe the monitor is not usable. The plan is to replace the monitor, and internals.

Cockpit door panel:

https://soarbywire.files.wordpress.com/2016/11/img_4945.jpg

Flood / Integ Lt panel:

https://soarbywire.files.wordpress.com/2016/11/img_4939.jpg

Pinouts on the website.

A few shots of the overhead panels -- figuring out the schematics and wiring these panels will be difficult.

https://soarbywire.files.wordpress.c...1200&h=&crop=1https://soarbywire.files.wordpress.c...1200&h=&crop=1https://soarbywire.files.wordpress.c...1200&h=&crop=1https://soarbywire.files.wordpress.c...1200&h=&crop=1https://soarbywire.files.wordpress.c...1200&h=&crop=1https://soarbywire.files.wordpress.c...1200&h=&crop=1https://soarbywire.files.wordpress.c...1200&h=&crop=1https://soarbywire.files.wordpress.c...1200&h=&crop=1https://soarbywire.files.wordpress.c...1200&h=&crop=1

MIP panels

https://soarbywire.files.wordpress.c...1000&h=&crop=1https://soarbywire.files.wordpress.c...1000&h=&crop=1https://soarbywire.files.wordpress.c...1000&h=&crop=1

Merry Christmas and Happy New Year all. The challenge next year will be trying to interface all of this with FMGS!

Sidesticks and tillers

https://soarbywire.files.wordpress.c...1000&h=&crop=1
https://soarbywire.files.wordpress.c...1000&h=&crop=1
https://soarbywire.files.wordpress.c...=700&h=&crop=1
https://soarbywire.files.wordpress.c...=700&h=&crop=1

Congratulation for getting this real parts.

Cheers Fritz, congratulations on evolving your Sim now with a cockpit door :)

The difficult part now will be trying to interface it with the sim.
No transducers so I will need to make a mechanism (sliding pots) to translate the movements into joystick commands. The solenoid will also require some work and logic to do its magic --

When AP1 or AP2 = on, supply 28V to solenoid.
On AP1 or AP2 disconnect, cut 28V supply. Or perhaps link it up to the amount of joystick transnational movement pass the threshold. From the FCOM:

SIDESTICKS
Sidesticks, one on each lateral console, are used for manual pitch and roll control.They are springloaded to neutral.When the autopilot is engaged a solenoid operated detent locks both sidesticks in the neutral position. If the pilot applies a force above a given threshold (5daN in pitch, 3.5 daN in roll) the autopilot disengages and the stick becomes unlocked and the deflection is sent as command to the computers.

Video of the sidesticks in 'action'.

https://www.youtube.com/watch?v=TRxCxjABADg