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  #1  
Old 03-15-2018, 12:33 PM
az_gila's Avatar
az_gila az_gila is offline
 
Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 10,011
Smile A variation on the Dynon Network Hub

For my -6A I used a single Skyview and had less Dynon add-ons. The Dynon network cables make hook-up easy, but splitting power and putting splices in the servo cables bugged me.

So, for my -10 build I came up with a simple alternative idea to Dynon's network hub. I designed a 5 port hub, but added two custom connectors dedicated to servo hook-ups only, all on a single 2.5" x 3.8" ExpressPCB mini card. It's a much cleaner solution to the servo power wiring issue. I can now connect all of my planned network items easily behind the panel and only use one box as a daisy chain.



The power supply wires, and the AP disconnect line, are now brought out with a single 4 pin Molex MiniFit Jr. connector.

A simple schematic -



It's untested at the moment, but easy to check traces. If anyone wants to duplicate I can send them the ExpressPCB ".rrb" file. If you want a better schematic, I can email an easier to read PDF version.

Please, no PMs, just use my regular email.

PS... a more complicated hook-up card to connect the parallel connections of two Dynon Skyviews simply and cable to their associated items is in work.
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Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ

Last edited by az_gila : 03-15-2018 at 03:44 PM.
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  #2  
Old 03-15-2018, 01:27 PM
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wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,826
Default PC file

Brilliant. E-mail sent.
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Estes Park, CO
wirejock at yahoo dot com
Donated 12/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (3,000+ hours)
Empennage, wings, fuse, finishing kit done. Working FWF
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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  #3  
Old 03-15-2018, 01:33 PM
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az_gila az_gila is offline
 
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Location: 57AZ - NW Tucson area
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Smile

Quote:
Originally Posted by wirejock View Post
Brilliant. E-mail sent.
Thanks... If there is enough interest, I can order one batch of boards for anyone who wants to duplicate the hub.
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Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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  #4  
Old 03-15-2018, 03:59 PM
Lars Lars is offline
 
Join Date: Nov 2005
Location: Davis, CA
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Default

Quote:
Originally Posted by az_gila View Post
Thanks... If there is enough interest, I can order one batch of boards for anyone who wants to duplicate the hub.
Likewise, email sent. And yes, brilliant!
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  #5  
Old 03-15-2018, 04:39 PM
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az_gila az_gila is offline
 
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Location: 57AZ - NW Tucson area
Posts: 10,011
Question Do you want a PCB?

Looks like there is enough demand so far for a minimum order of 3.

Let me know by email if you want one, max. price is $28 (no profit.....) and will go down as the numbers ordered go up.

I'll wait a few days to get more response.

The Dsub connectors used are not critical, but they do need 4-40 threaded posts to retain the cable part of the connector. The part numbers given have these threaded standoffs and board locking pegs. DIY retainers with 4-40 hardware could be used but I found the specific hardware to be quite expensive and a single connector part to be more effective.
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Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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  #6  
Old 03-15-2018, 06:17 PM
Ethanol1 Ethanol1 is offline
 
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Location: MN
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Default I?m in too

I?m in. Email sent.
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  #7  
Old 03-15-2018, 07:53 PM
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N941WR N941WR is offline
 
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Location: SC
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Gill, that is a great idea! If I weren't already flying, I would buy two in an instant; one to put by the bell crank in the tail and one for behind the panel.
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RV-9 (Yes, it's a dragon tail)
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  #8  
Old 03-15-2018, 07:53 PM
engineerorange engineerorange is offline
 
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Location: Catawba, NC
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Please post if you do the parallel hookup card for dual skyview screens. That will make it easier for me if I ever get to add my second screen.
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  #9  
Old 03-15-2018, 11:00 PM
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az_gila az_gila is offline
 
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Location: 57AZ - NW Tucson area
Posts: 10,011
Thumbs up Checking

Quote:
Originally Posted by engineerorange View Post
Please post if you do the parallel hookup card for dual skyview screens. That will make it easier for me if I ever get to add my second screen.
Will do.

The card is laid out and the schematic made. What is now needed is a second pair of experienced EE eyes to check that the two match and also meet the Skyview documentation.
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Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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  #10  
Old 03-15-2018, 11:48 PM
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cdeerinck cdeerinck is offline
 
Join Date: Mar 2014
Location: San Marcos, CA
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Thumbs up

Gil - Wow, I am very impressed.

You should contact Dynon and ask if they are interested in working it into their product line. I would have loved to have used this, but unfortunately, that work is already done. Another item for my "if only" list.

Nice work!
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