Hi all:
Here's a progress update on the design of the Bendix style HSI. It looks fairly advanced, but it still has a way to go.
Andy there's still a lot that isn't settled yet so no drawings for you at this stage. sorry.
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Hi all:
Here's a progress update on the design of the Bendix style HSI. It looks fairly advanced, but it still has a way to go.
Andy there's still a lot that isn't settled yet so no drawings for you at this stage. sorry.
This is awesome. How the heck is someone going to be able to build that. it is so frigging small.
Great stuff though.
Trevor:
Actually, the design is strictly not a "home build" thing unless the "home builder" has a lathe and milling machine with the accessories to cut gears.
We may produce it as a kit or complete. In any case, there's still a lot of work to do to make it feasible. The parts in it are small, but in kit form it should be within the abilities of anyone familiar with a screwdriver and soldering iron to build.
The most costly parts are going to be the visuals like the bezel, knobs, compass ring and CDI plate. These will have to be professionally made or finished.
Hi All:
Here's an update, just so you know I haven't given up. The design is starting to look like something useful although still a long way from complete. As it stands, it will have a resolution of 1/4 of a degree which translates to 1440 steps per revolution.
Yes Martha, it WILL fly....
Still plodding...
We seem to have lost Ruprecht.
He'll be back. He just has life interrupting right now.
Looking good Scott. How far are we from needing some controllers?
Quote:
Originally Posted by cscotthendry
If your project is going to hit the market on a mass scale in the future, then I can supply you the proper knobs, face plates and what ever else you need in this area, they will be professionally done.
If you even need different gears you can send me prototypes and I can manufacture these also on a mass scale if needed.
Looks like we have a factory team assembling!
OK, Looking close to the finishing line now. Andy, I'll send some details via PM later today about the circuitry required and the board dimensions.
]Quote:
Originally Posted by cscotthendry
Wow, those 3D renderings look fab, are these going to be prebuilt ? becasue looking at those renderings it looks very complex for the average simmer to build?
Padraig:Quote:
Originally Posted by Padraig
Yes it is rather complicated looking. That's why the design has taken a while to get right.
I've simplified most things and if you were able to look closely at the components, you'd see that the only complicated parts are the ring gears and the front bezel. The gauge is designed as 5 main sub assemblies: The compass heading bug set, the CDI set, the forward stepper motor set, the rear stepper motor set and the circuit board. All these mount into a frame that holds the alignment and spacing of the assemblies. For the kit builders, they will build each sub-assembly separately and then assemble the sub-assemblies to the frame.
My intention was to sell these as built or as a kit. I realised fairly early in the design that this would not be a candidate for home-building due to the complexity and precision required. Most of the parts have been designed to be made on a manual lathe and milling machine. But some parts are odd shapes and sizes that would make them a bit fiddly to cut out, hopefully that's where you come in. :wink:
Scott, Got the PM. I'll start putting pencil to papyrus.
LOL, But shouldn't that be Quill to papyrus?:wink:Quote:
Originally Posted by AndyT
The cat ate my quill. I'd use a sharp burnt stick, but I'm not allowed to have a BBQ much less a fire where I live. And besides, do you have any idea how much ink costs these days? ;) Of course with the price of gas, I could likely trade a few drops for a gallon or so of ink...
Was the quill still attached to the bird when the cat ate it?
Nah. This cat has lived inside all her life and freaks out when taken outside. Any birds she attack are toys.
It's been a while so I thought I'd better let you all know what the status is. I'm still here, and still working on the HSI. I had a bit of a setback with my software and had to re-install it and re-draw the HSI. *sigh* Anyway, after a nice holiday in New Zealand, I now have the model re-drawn and can start to think about moving to the next phase which is designing machining jigs. When I start to make the jigs and some test parts I'll have some pics to share.
Now we know what you were REALLY doing in Kiwiland looking at the picture...:D
Hey all:
I'll bet you thought I was gone. Well, I'm still here and I'm still working on the HSI. I won't bore you with the history of all the edits and re-designing I've done since I last posted but there has been a lot of work in this. I have the design to where I now believe I will be able to build it with my basic machine tools.
I hit a milestone today of sorts. I made the first real bezel. I started out with a piece of aluminium 90mm by 85mm by 10mm thick and whittled it down to what you see here.
Originally I intended to try to make these to sell. I realize now that, that was unrealistic. The amount of work required to make one would make the price prohibitive. The bezel alone takes a good 6 hours to make.
Anyway, I'm reasonably happy with the results. The finish is a bit rough, but since the crown ring and front opening are cut with a router by hand and not with the mill, the depth of cut varies just a bit here and there.
You're setting the bar pretty high for the rest of us, Scott. That is outstanding.
Mike:
Thank you. Credit where it's due, it all started with your book.
Here's a bit more progress. I've made most of the internal mount plates. I did a test fit of the mount plates, just to be sure everything is in order.
More progresshttp://www.mycockpit.org/photopost/d...0/P1060464.JPG
This is the stepper mount plate. Almost everything seemed to end up mounted on this plate. The bearing in the middle is for the slip ring connector.
That's looking absolutely brilliant mate!
Rup:
Long time no see. How's the house going?
We ended up buying rather than building, have finally got the cockpit back together and building a few more bits before the flight sim expo in October. Hope to see you there, and check out the world's first sim HSI!
Roger that on the first, fingers crossed on the second!Quote:
Originally Posted by ruprecht
Scott, where did you end up getting your steppers?
Rup:
I bought a batch from Futurlec
http://www.futurlec.com.au/StepperMotors.jsp
They were cheap as ...
These guys seem to sell runout stock or something. They're very cheap. Not good communicators, but from my experience reliable suppliers, if a bit slow.
BTW, an update for those watching this. Progress has been a bit slow of late as I've started taking flying lessons and have bought a microlight trike. I still intend to continue the HSI project as and when I get the time ... but I've been a bit distracted lately. ;-)
Ah brilliant, just ordered 5 of the titchy ones. Thanks Scott, and have fun on your trike!
G'day again:
Progress on this has slowed a bit. I've purchased a flexwing microlight (we call 'em trikes in Oz) and I've started flying lessons. I solo'ed on Wednesday and now I just have to complete the rest of my 20 hours to get my license.
Anyway, here's some progress pics. The markings are just sticky labels to get an ide of how it will look. THe finished item will have screen printed markings and look a lot better.
Enjoy.
http://www.mycockpit.org/photopost/d..._Progress3.jpg http://www.mycockpit.org/photopost/d..._Progress2.jpg http://www.mycockpit.org/photopost/d..._Progress1.jpg
PS: I'll be going to the OzFlightsim Expo next weekend and I will be bringing the HSI if anyone is interested to have a look at it.
Bravo Scott!
And congrats on your first solo - you'll never forget it. See you at the expo.
I made a little progress on the CDI assembly today
http://www.mycockpit.org/photopost/d..._Progress2.jpg http://www.mycockpit.org/photopost/d...I_Progress.jpg
The first pic shows the CDI gear and the standoffs that attach the CDI faceplate. The second pic shows the CDI plate and the top and bottom of the CDI pointer
This is looking great Scott. Thanks for the update.
Yeah yeah, it's been a while. I've been flying so the poor old HSI has been neglected of late. I finally got a round tuit and made some more parts for the HSI.
http://www.mycockpit.org/photopost/d...s/P1070135.JPG http://www.mycockpit.org/photopost/d...s/P1070140.JPG http://www.mycockpit.org/photopost/d...s/P1070137.JPG
I've added the gear trains for the CDI, Compass rose and Heading bug. I've also added the gears on the rotary encoders and the shafts for the control knobs. I've made the hinge bar and mounts for the glideslope pointer arms (on the back plate) and finally, the hinge mounts for the flag arms (on the stepper plate).
Enjoy
Question, Why not write a code and use the stock internals driven by PIC or or other interface. I think it would be easier to do this electronically and code versus mechanical?
Hi.....,
I can offer you some good advice. Always be clear in what you are asking for when you post to a forum. I hope my advice is helpful for all your future endeavors.
hockey sticks
I'm still working on it.:oops:
Question, Why not write a code and use the stock internals driven by PIC or or other interface. I think it would be easier to do this electronically and code versus mechanical?Quote:
Originally Posted by theodoretoby