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Old Feb 17, 2013, 12:50 PM
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Maybe something along this line?????

http://www.ebay.com/itm/3-Inch-Glow-...3946%26ps%3D54

Of course, you'd have to use them towards dusk in order to really see them.

But you could recover them and use them over and over again, for 6-8 hours!!!

Although, this may be more like 'ordnance' rather than flares. You could probably even add spin fins at the narrow tail-end of the 'bomb', and it would stabilize and slow down it's decent..............
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Old Feb 17, 2013, 02:12 PM
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That's too bad! Mark just silcon glues the tabs on the 90 and above, but for the 70 and lower just recommends double sided tape.

Don't to start that conversation all over again but it was commented on at length with JK when he used velcro.

You're adding what didn't need to be there at all.
Its all good, I wanted the screw fasteners- don't like the idea of glueing and tearing out every time to replace... now re-doing the wires, Jks plugs are smaller than my ARC plugs, will use Jks silicon set up
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Old Feb 17, 2013, 04:12 PM
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What tearing or glue? Its double sided tape most commonly used if there are no mount tabs.

JK also had this idea but, how often are you having to pull your EDFs from the frame. What, twice a season if at all?

Another approach is thin metal strap with double sided tape. I use that on my larger fans. Even after a crash they don't move.

I don't know. Just a shame punching rivet holes into such a finely crafted piece of work when there's other common approaches.
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Its all good, I wanted the screw fasteners- don't like the idea of glueing and tearing out every time to replace... now re-doing the wires, Jks plugs are smaller than my ARC plugs, will use Jks silicon set up
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Old Feb 17, 2013, 04:23 PM
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With the way that the SU-35 mounting bay is contoured to fit the EDF's, why would you even need mounting tabs to start with???

It's already clamped in............
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Old Feb 17, 2013, 04:42 PM
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Well, $150 for the Dynex is probably what someone has to sell something like that for, to be worth the time and effort at all.
As far as how good it is..... I have one coming, but I expect it to be "so-so". (better to be pleasantly surprised by a better result, than disappointed by a lesser one! LOL)
Not because of poor design or effort, but more because of all it is made to do and aimed to do.

YOU have to provide the fan holder, that is lightly sprung to allow it to vibrate well whilst still being held there under low/med power. That means your own effort and cost. I made up my own all alloy unit, but I have tons of alloy/scrap around so it was free, bar the 2 or 3 hours it took to machine/assemble it all.
Most people will not be able to make that.

Next is that it is only 'half automated'. The user has to take readings and plot them out on a polar graph, to arrive at the 'exact weight required at the exact place'. That is OK, but not as nice a 'fully automated' ! Fully automated would need better PC software than it has.
But, apart from more effort, the end result should match anyway.

The unit itself is very much what you would make to be a part of a supplied full stand unit anyway, but would have twin sensors - not just one as it comes with - so it can do dual plane balancing. Then the software would need the GUI and polar plotting on screen, not just number readouts - so that it SHOWS you exactly what and where to put it. That is not that big a step over plain readouts, so no big deal to write more code, over what is already there.

So the Dynex has its uses (for anyone), but needs a bit more than just itself - the stand mainly, to use it in its intended form.
I will test that all out, to see what it can help achieve, and if it does provide a great result in just that lower level way, then fine... it will do. It should be FAR better than any non-sensor/strobe system.... and smart phone systems are not far above 'hand held' balancing, so they are no great use with any Apps that have been made so far. And may never have ability to work well anyway, as their G sensor access is limited and lacking in what they can do - which is fine, because they never designed them for this use anyway!

I think that the Dynex might still work ok with a "fan strapped to a block of wood" even.... that just means a lot less sensitivity, but it might still be enough for it to give a decent readout to produce a well balanced fan anwyay.
I will be testing it for that too, just to see if people will be able to use it effectively without a proper EDF stand.

For a bit of 'graph paper drawing' effort, and if only needing the $150 cost of the Dynex, that would be easily fine for people to use (no EDF stand) if it gives a 'great' result.
I will see.....

Beyond that, I like the Tam unit, hehe. So I am sketching up ideas on how to do that relatively easily and viably, plus checking out Arduino stuff it would require. That would be a big task for me seeing I don't specialise in the programming aspect - but not impossible at all... just a LOT of TIME. Which might make it not worth bothering. (but is fun doing/learning the stuff anyway).
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Old Feb 17, 2013, 04:43 PM
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Quote:
Originally Posted by davemilw07 View Post
With the way that the SU-35 mounting bay is contoured to fit the EDF's, why would you even need mounting tabs to start with???

It's already clamped in............
Look at stock, there are mounting tabs-- the housing has tabs which you screw into the mounts. Yes they fit the stock EDF housing but not necessarily all housings. Think how much force those motors produce, they are seated in FOAM!! Thats why they have mounting tabs, and why Mark sells mounting tabs- I doubt that silicone alone is strong enough to withstand the forces to hold those tabs on the housing. Jk had silicone and velcro-- I say the tabs I put on are a much more robust solution--those motors are not gonna move at all!!
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Old Feb 17, 2013, 04:48 PM
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Originally Posted by PeterVRC View Post
Well, $150 for the Dynex is probably what someone has to sell something like that for, to be worth the time and effort at all.
As far as how good it is..... I have one coming, but I expect it to be "so-so". (better to be pleasantly surprised by a better result, than disappointed by a lesser one! LOL)
Not because of poor design or effort, but more because of all it is made to do and aimed to do.

YOU have to provide the fan holder, that is lightly sprung to allow it to vibrate well whilst still being held there under low/med power. That means your own effort and cost. I made up my own all alloy unit, but I have tons of alloy/scrap around so it was free, bar the 2 or 3 hours it took to machine/assemble it all.
Most people will not be able to make that.

Next is that it is only 'half automated'. The user has to take readings and plot them out on a polar graph, to arrive at the 'exact weight required at the exact place'. That is OK, but not as nice a 'fully automated' ! Fully automated would need better PC software than it has.
But, apart from more effort, the end result should match anyway.

The unit itself is very much what you would make to be a part of a supplied full stand unit anyway, but would have twin sensors - not just one as it comes with - so it can do dual plane balancing. Then the software would need the GUI and polar plotting on screen, not just number readouts - so that it SHOWS you exactly what and where to put it. That is not that big a step over plain readouts, so no big deal to write more code, over what is already there.

So the Dynex has its uses (for anyone), but needs a bit more than just itself - the stand mainly, to use it in its intended form.
I will test that all out, to see what it can help achieve, and if it does provide a great result in just that lower level way, then fine... it will do. It should be FAR better than any non-sensor/strobe system.... and smart phone systems are not far above 'hand held' balancing, so they are no great use with any Apps that have been made so far. And may never have ability to work well anyway, as their G sensor access is limited and lacking in what they can do - which is fine, because they never designed them for this use anyway!

I think that the Dynex might still work ok with a "fan strapped to a blcok of wood" even.... that just means a lot less sensitivity, but it might still be enough for it to give a decent readout to produce a well balanced fan anwyay.
I will be testing it for that too, just to see if people will be able to use it effectively without a proper EDF stand.

For a bit of 'graph paper drawing' effort, and if only needing the $150 cost of the Dynex, that would be easily fine for people to use (no EDF stand) if it gives a 'great' result.
I will see.....

Beyond that, I like the Tam unit, hehe. So I am sketching up ideas on how to do that relatively easily and viably, plus checking out Arduino stuff it would require. That would be a big task for me seeing I don't specialise in the programming aspect - but not impossible at all... just a LOT of TIME. Which might make it not worth bothering. (but is fun doing/learning the stuff anyway).
No offense to Dynex, but that looked like a lot of work, so many videos to show what it does, I'm telling you if me and my buddy can make this happen, the device will leap frog Dynex, Bob's and all the others I've seen links to here-- and the most impressive part will be the software, we already started shopping for the components - I'm hoping we can get this rolling quickly
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Old Feb 17, 2013, 05:00 PM
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Originally Posted by davemilw07 View Post
Pete!!!

You make this sound ALL sooooo easy to do, and cheap............

So when are you bringing YOUR product to market (for around $100)?????
Pete,

WHY are you getting the Dynex unit to begin with?????

You have already told us how CHEAP and EASY it is to do yourself.........

So I repeat the question, WHEN is YOUR product going to be available (for $100)????
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Old Feb 17, 2013, 05:05 PM
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Originally Posted by IntheTubeDeep View Post
Look at stock, there are mounting tabs-- the housing has tabs which you screw into the mounts. Yes they fit the stock EDF housing but not necessarily all housings. Think how much force those motors produce, they are seated in FOAM!! Thats why they have mounting tabs, and why Mark sells mounting tabs- I doubt that silicone alone is strong enough to withstand the forces to hold those tabs on the housing. Jk had silicone and velcro-- I say the tabs I put on are a much more robust solution--those motors are not gonna move at all!!
Aren't your fans 70mm?????
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Old Feb 17, 2013, 05:14 PM
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Silicone even holds 90mm fans totally fine.
Heaps of high performance guys only do that.
Not that I would! LOL

Mark at ERC uses silcone to hold the flanges on his alloy housings!! That is a very small area!

Try it..... you can't even get a siliconed fan out again! A lot of effort!
And they even just use one or two beads around the fan housing - not a complete wrap around.

So it is not a factor of it holding, but that flanges make it easily removable!
That is why I use, and/or fit, flanges to ALL housings. And mod all planes to have mounts for those (only needs to be plywood plates), if they come without.

For the ERC housings I used bolt/nut on my own custom made flanges - I wasn't going to pay $15 for a set that I can make for free in 10 minutes, plus tailored to how I want them.! LOL
But in labour cost terms, $15 is fair enough to sell such an item for... IF YOU made them. (eg like I did). But if from China... worth about $3, hehe.
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Old Feb 17, 2013, 05:14 PM
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Originally Posted by IntheTubeDeep View Post
No offense to Dynex, but that looked like a lot of work, so many videos to show what it does, I'm telling you if me and my buddy can make this happen, the device will leap frog Dynex, Bob's and all the others I've seen links to here-- and the most impressive part will be the software, we already started shopping for the components - I'm hoping we can get this rolling quickly
WOW! why cant we just take the 35 out of the box put the screws in and fly the thing?
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Old Feb 17, 2013, 05:17 PM
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Beautiful Dreamer!!!!!..............
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Old Feb 17, 2013, 05:21 PM
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ITTD, you seem to know better than the guys who makes and punches these out in the hundreds.
The tabs are only for the larger fans, 100,127... He even said not to bother with them on m 90mm.

He Mark even posted to just use double sided tape to jk. Why cause it woks for most with even more power/torque.

No matter... Its already done.
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Old Feb 17, 2013, 05:28 PM
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I gotta agree tape or silicon is. Heck id even use plumming straps before making tabs.

A very light one...
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Old Feb 17, 2013, 05:45 PM
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I got the Dynex because the Dynex costs me ZERO time.....
Building my more detailed one would take 20hours+ (though it would be far better).
I don't care about $ really... TIME is more valuable. $150 is nothing.
But I do anything myself that needs that for it to be done properly - so time is worth using for those things. Unless an item can be bought that does a pretty good job - or it can be improved (not so bad a design it is hopeless) - I do it myself, from scratch.

The Dynex also has potential to USE as a base unit (hardware) for a better balancer - I can just run it into my own software instead, and then have that 'fully automated' GUI display..... just not two plane (which I think is probably not totally necessary to achieve a great balance anyway). So it has future possibilities I saw in it too.

If required in the end, I will make a two plane balancer.... more for interest than totally necessary, as I don't really have any great fan issues anyway. When I NEED something I DO IT, pretty well immediately... so not having started anything on a two plane balancer shows me that I don't consider it important, so far.... not important enough to do more than just notes and drawing ideas etc so far.
I would never make one to sell..... I have had a few manufacturing / programming based businesses in the past (For Commodore Amiga and then PC's - hardware and software) and am not interested in the effort/demands of that sort of thing anymore. Now I do such things just for rmy own use.
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