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Main => Builders Discussions => Topic started by: archen on November 16, 2013, 08:53:25 AM

Title: B737 Yaw damper/Anti-ice switches
Post by: archen on November 16, 2013, 08:53:25 AM
Hello guys,
So, I've been working hard on a new switch lately and today I finally made the first prototype. I'm quite happy with it for being the first prototype. I do have some things to take care of and optimizing spring tensions. But overall I'm happy. The important thing with this prototype was to see that my mechanical design worked the way I wanted and it did.

You can see a short demo on the video below. It's inferfaced with Phidgets relay, pokeys I/O and connected to prosim737. It acts as Yaw damper switch in the video but it can also be assigned as Anti-ice.

I'll keep you guys updated on the progress. I already spent too many hours with the design this week so there won't be any new prototypes until next weekend.

Would love to hear your thoughts about it.


Best regards,
Anders
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: XOrionFE on November 16, 2013, 09:02:34 AM
Very nice Anders.  Great work.

You can count on an order from me once they are ready for sale

Best regars,
Scott
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: markfire on November 16, 2013, 11:04:14 AM
Nice Anders


I guess you've taken the measurements and the switches will live nicely with all the other bits and pieces that are nearby in the overhead.


Good stuff


If all goes well you know where my order will be : )


Mark
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: fsaviator on November 16, 2013, 02:25:34 PM
Standing by to order!
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: archen on November 17, 2013, 01:59:39 AM
Quote from: markfire on November 16, 2013, 11:04:14 AM
Nice Anders


I guess you've taken the measurements and the switches will live nicely with all the other bits and pieces that are nearby in the overhead.


Good stuff


If all goes well you know where my order will be : )


Mark

Yeah I did. As always the space surrounding the yaw damper and WAI is tight! I've built it so it fits FDS overhead without problem so I guess all overheads which is scale will do it. FDS have an IBL connector very close to the the switch. Will clear that connector by ~1-2mm. The switch housing dimensions is 40x90x24mm.


Quote from: fsaviator on November 16, 2013, 02:25:34 PM
Standing by to order!
Thanks Warren :-)

Quote from: XOrionFE on November 16, 2013, 09:02:34 AM
Very nice Anders.  Great work.

You can count on an order from me once they are ready for sale

Best regars,
Scott

Thank you Scott!


I'll keep you guys updated on the progress.


Best regards,
Anders
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: tennyson on November 17, 2013, 04:24:35 AM
Hi Anders,
Great work, my friend.

Like Scott, I'm in, too.

Let us know when they are available,


Thank you,


Frank Cooper
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: markfire on November 17, 2013, 07:38:07 AM
Anders


I have a Simworld Overhead which is to scale so i guess they'll fit.


regards


Mark
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: archen on November 17, 2013, 07:58:06 AM
Thanks Frank. Will do.

I've made progress today. Made the adjustments I planned and it worked great! I beleive this prototype is very close or may even be the final product. I'll have to do some extended testing now and to take care of some manufacturing stuff. I beleive I can start selling them in a couple of weeks.

New video:

B737 Yaw damper / WAI switch (http://www.youtube.com/watch?v=DgUkaocpbZM#ws)

/Anders
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: cimbo on November 17, 2013, 12:40:48 PM
a very well run.. Anders ..

Can you included in the list of my order ?

:idiot:

regards..
Title: B737 Yaw damper/Anti-ice switches
Post by: Ridgenj on November 17, 2013, 03:07:05 PM
Anders

In will order a set too, would be nice if the come with the cap already.

Cheers
Luis
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: archen on November 19, 2013, 08:44:29 AM
Hey guys.

Made the final improvements. I'm really happy with the result now and I've decided to go ahead and do all the testing with this prototype. Starting now with an extended holding test. After that I have a tester who will try it out in his cockpit. If that turns out perfect I'll start making the first batch.

Just a short update. Everything is going well :-)

Does anyone here have a few pics of the backside of the your overhead? In the area of Yaw damper and WAI? If you have some available please share them with me. I have FDS ovhd and they fit a treat in that one. Clearing all switches, annunciators and IBL connectors. Would love to see how other brand look on the backside to see if there will be any problems fitting them. I don't have the real ones but I beleive my switches is quite close in dimensions.


Quote from: Ridgenj on November 17, 2013, 03:07:05 PM
Anders

In will order a set too, would be nice if the come with the cap already.

Cheers
Luis

Hi Luis,
The cap is from FDS, I will not include the cap with the switch, sorry. They are available at FDS though.



Best regards,
Anders
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: stephenbalmer on November 19, 2013, 09:02:17 AM
Wonderful job Anders!

I'm assuming it will fit my Simworld overhead, so I'm waiting to place an order too.

Would be glad also to hear when you are ready to sell.

Many thanks,

Steve
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: sluyt050 on November 19, 2013, 09:27:18 AM
Hi Anders,

This is another outstanding improvement from Sweden! Please, put me on your order list. I just got my FDS stuff, so I look forward to start assembling with your start switches and yaw damper switch.

Regards,
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: fsaviator on November 19, 2013, 11:29:33 AM
Anders, I'll try and get into my OC overhead over the next day or two to get some pics for you.
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: archen on November 22, 2013, 05:42:03 AM
Warren, Thank you again!

Quote from: sluyt050 on November 19, 2013, 09:27:18 AM
Hi Anders,

This is another outstanding improvement from Sweden! Please, put me on your order list. I just got my FDS stuff, so I look forward to start assembling with your start switches and yaw damper switch.

Regards,

Nice to hear Edward :-) Isn't those fds panels looking great? I bet you don't regret you took my advice and went with FDS.
Don't forget the Wing anti-ice switch as well ;-)

Next week I'll receive electronics for the new switches. Probably going to start manufacture a couple of them by the end of next week.

Have a great weekend everybody!
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: Sean on November 22, 2013, 11:18:34 AM
Quote from: archen on November 22, 2013, 05:42:03 AM
Don't forget the Wing anti-ice switch as well ;-)

Don't forget the voice recorder switch aswell ;-)
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: sluyt050 on November 23, 2013, 02:06:16 AM
Quote from: archen on November 22, 2013, 05:42:03 AM
Warren, Thank you again!

Quote from: sluyt050 on November 19, 2013, 09:27:18 AM
Hi Anders,

This is another outstanding improvement from Sweden! Please, put me on your order list. I just got my FDS stuff, so I look forward to start assembling with your start switches and yaw damper switch.

Regards,

Nice to hear Edward :-) Isn't those fds panels looking great? I bet you don't regret you took my advice and went with FDS.
Don't forget the Wing anti-ice switch as well ;-)

Next week I'll receive electronics for the new switches. Probably going to start manufacture a couple of them by the end of next week.

Have a great weekend everybody!

Yes Archen the FDS panels are great indeed. I am not aware that the anti-ice is solenoid driven as well; it seems that PMDG has not modelled this. I'm wondering why not? Giving you the benefit of the doubt I assume it is modeled in Prosim.

Nice weekend too!
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: Sean on November 24, 2013, 01:07:20 AM
Here's a snapshot from the FCOM...

Title: Sv: B737 Yaw damper/Anti-ice switches
Post by: archen on November 24, 2013, 02:00:39 AM
Thanks Sean! I had no clue. I don't have that switch on the overhead.

Looks like it will work good in the CVR as well. If the software supports it of course.



Sent from my GT-I9505 using Tapatalk

Title: Re: B737 Yaw damper/Anti-ice switches
Post by: Sean on November 24, 2013, 03:16:51 AM
Am I on a percentage?!  ;)

Of course, all this talk of simulating the voice recorder switch  :o will have some folk rolling their eyes in disbelief!
Title: Re: Sv: B737 Yaw damper/Anti-ice switches
Post by: Sean on November 27, 2013, 09:03:50 PM
Quote from: archen on November 24, 2013, 02:00:39 AMIf the software supports it of course.

Just discovered this...

http://prosim737.com/forum/viewtopic.php?f=83&t=5059 (http://prosim737.com/forum/viewtopic.php?f=83&t=5059)
Title: Sv: B737 Yaw damper/Anti-ice switches
Post by: archen on November 27, 2013, 11:19:07 PM
Nice find Sean. And nice software, I'll try to get into touch with the creator and see if there is any possibility to support hardware solenoid operated toggleswitch

Anders

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Title: Re: B737 Yaw damper/Anti-ice switches
Post by: markfire on November 28, 2013, 01:54:14 PM
Hi again Anders


Wil you be shipping the switches before Xmas?
What's price tag





Cheers


Mark

Title: Re: B737 Yaw damper/Anti-ice switches
Post by: archen on November 28, 2013, 02:03:04 PM
Hello Mark,
Yes I should be able to ship them before xmas. Hopefully they will be available in about 2 weeks. Price tag will be announced at launch. As the prototype is still under testing I don't know if I will have to change anything to the construction and therefor I don't wanna say anything about pricing yet.

Anders
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: markfire on November 28, 2013, 02:09:35 PM
Thanks for the update.
Title: Re: B737 Yaw damper/Anti-ice switches
Post by: sagrada737 on November 28, 2013, 04:01:33 PM
Hello Anders,

VEry cool design.  Your innovation on these sort of details is remarkable.  Again...  I sure enjoy my Start Switches.

Regarding your video on the Yaw Damper Switch...   You indicated that the solenoid get "very hot to the touch".  I'm a bit nervous about that, as once the Overhead is closed up, that solenoid might become even hotter.  Any solution to this heat issue - other than an added fan?

Mike
Title: Sv: B737 Yaw damper/Anti-ice switches
Post by: archen on November 28, 2013, 09:49:05 PM
Hello Mike,
Thanks for your comment.

The heat side of things is what I'm testing and have been testing the last week. A solenoid gets quite hot during operation and that is normal.

The solenoid I'm using have a insulation class A which is specified to have a working temperature up to 105 C°. The temperature rise is approx 55 C° during continues use which gives as an ambient temperature of 50 C° before the solenoid exceeds it's specifications. I doubt anyone will have those temperatures in the overhead compartment.

The solution if overheat conditions occur would indeed be a heatsink or fan.

To make sure the solenoid will not get overheated, which can generate smoke and destroy the solenoid, I've added a  thermal resetable fuse which will cut the circuit if the solenoids core exceeds 100 C°. That will save the solenoid and protect it from melting.

Once the solenoid gets colder again the fuse automatically resets.

Still doing tests with this and with different ambient temperatures. That's what takes time but I don't wanna rush into things.


Anders

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Title: B737 Yaw damper/Anti-ice switches
Post by: andthiel on November 29, 2013, 01:53:47 AM
Hej Anders,

Great job again! Tack ska du har!

Please put a pair on the order list for me, too.

Många hälsningar från Tyskland,

Andreas


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Title: B737 Yaw damper/Anti-ice switches
Post by: archen on January 06, 2014, 10:22:16 AM
Regarding the yaw damper I have bad news. I don't feel comfortable with the heat the solenoid is generating so I'm looking at another solution. When I decided not to manufacture the version I showed you guys I was well into these switches so when IRS switches is official I'm going to redesign yaw damper. Sorry, but risking anyone's cockpit due to the overheat problem does not feel good and I would never risk that so this was the only option.

I do have an idea how to achieve the same result (solenoid not kicking the toggle back) without having to power the solenoid at all time.

Anders


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