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HomeVendor Promoted Content › Align 3G 3G Mod
10-16-2010 04:57 PM  8 years agoPost 41
SidewaysLS4

rrNovice

chicago il

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Still, I can't get rid of the feeling that you would achieve the same result sticking an additional weight to sensor box
I'm thinking the same thing. Although, the circuit board could be vibrating in the box if the base screws are slightly loose, and maybe the daughterboards are vibrating independantly to the main board attached to the case. There's a lot of solder holding it together, so ???

At any rate, I mixed up a batch of 5 minute epoxy (seemed kinda heavy, didnt weigh it though) and filled up the box keeping most of it in the daughterboard areas so it wouldnt ooze out the connector side when assembled. I also guesstimated the approximate amount of fill needed so it wouldnt be overfilled. After inserting the circuitry in the case, I put some more on the main board, then put the case bottom on and screwed it back together. The whole assembly is unitized now, and weighs more as well. Home-brew potting operation well-done I'd say

No pics as I only had about 5 minutes to get it done, lol

Time to fly it...

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10-16-2010 08:52 PM  8 years agoPost 42
TrevJonez

rrKey Veteran

St.George, Utah - USA

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it takes a brave soul to do a mod as perminant as dumping epoxy into the sensor case.

i bet it works out well though. let us know!

what tape are you mounting it on?

Who cares... its just money...

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10-16-2010 09:09 PM  8 years agoPost 43
Malc1

rrKey Veteran

EVESHAM,UK

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Also be interested to hear how this goes.

It may be a bit too `solid` to deaden any vibrations.

Minicopter Diabolo - Kosmik200,Pyro750-56
SpectraG + G26 3D Max

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10-16-2010 09:53 PM  8 years agoPost 44
SidewaysLS4

rrNovice

chicago il

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Actually the more solid it is...the less vibration the sensor will see...as the mass of entire case must be vibrated now to get that sensor vibrating...harder to do. Brave? Nahhh. Typically electronics destined to extreme environments are epoxy potted, not siliconed. I'm sure slicone will do the same effect though.

I only had opportunity to do very large indoor garage flight with this T250 testbed, but the Lock Gain went up a sizable margin without getting visibly jittery in flight as before, and some high-rpm issues (like I couldnt go over 3700rpm headspeed without issues) seems to have disappeared.

I've been using the tape that comes with the Skookum 360 under mine.

I should be able to get some outdoor flight in the coming days to validate the higher gain values in wind, I'll post if I notice something there as well.

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10-17-2010 05:45 PM  8 years agoPost 45
flyride

rrKey Veteran

Salt Lake City UT

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Well its Sunday and I am sure there are flights that have been made on the mods on Saturday so it is time for show and tell. What is the good word on the flight reports?

and the blonde said "RECTUM, Hell damn near killed em!!"

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10-17-2010 06:06 PM  8 years agoPost 46
TrevJonez

rrKey Veteran

St.George, Utah - USA

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well it made all 3 of mine more pitchy in forward flight which tells me that the sensor is getting a more accurate reading.

crashed my 450 today though hit so hard it broke servo cases open.

Who cares... its just money...

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10-17-2010 07:01 PM  8 years agoPost 47
flyride

rrKey Veteran

Salt Lake City UT

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That sucks about the 450!!! Was you able to increase the gains and did it make it feel anymore locked in also did you correct the pitching? What are your overall thoughts?

and the blonde said "RECTUM, Hell damn near killed em!!"

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10-17-2010 08:38 PM  8 years agoPost 48
TrevJonez

rrKey Veteran

St.George, Utah - USA

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so far it has been worth it. it made the thing track better overall. less odd wobbles on snappy pitch movement. lessened the bobbles on the tic tocs but not 100%.

only flew once after the 450 crash with the 600 today. i hate crashes ruin the whole day.

only did like 100$ damage to the 450 though, i thought it was going to be worse.

i still think for the most part the setup is the biggest thing we have to do.

Who cares... its just money...

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10-17-2010 08:47 PM  8 years agoPost 49
eric

rrApprentice

fernley, nevada

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heres my mod.
I used GOOP plummers edition.
I've read that the plummers, automotive, and household goops are all the same formula.

I removed the tabs on the inside of the plastic case.

I applied the goop then let it cure for a bit before reinstalling into the case.

i have a newer edition of the 3g and the back of the pins are epoxied from the factory. hmmm the older version i have is not epoxied. looks like align is trying to make the 3Gs a better unit. (remember the pushed in pin problem early on)

Right before reinstall of the electronics i put a small dab on the tops of the 2 upright sensors. I figured this would help cusioning of the top of the sensors to the case.
Then right before i installed the bottom cover, i put a small dab of goop on the bottom of the bottom sensor.

then installed the screws.

flight test trex 500..

i did increase the ele. and ail. gain 7 points each and upped the swashplate return speed 7 points using the align 3G 2.1 software. the trex 500 is really locked in now. The tail is much better but not perfect, but its acceptable.

this mod is a must do....

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10-17-2010 08:50 PM  8 years agoPost 50
nickmcdonald

rrNovice

new lenox, il

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Just put the first flight on mine. So far I am very happy with the result. I didn't change any of the settings in the software from before the mod. But the whole machine feels much much smoother. The tail is quite a bit better, not perfect but much better. The bobbles on very fast hard cyclic stops is almost completely gone. In fact now it looks like more of a 3G over-correction than anything.

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10-18-2010 03:54 AM  8 years agoPost 51
Ducati996

rrApprentice

Reno, Nevada

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Very Simple
Eric:

That looks very nice, I will do the same and see how it goes

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10-18-2010 11:25 PM  8 years agoPost 52
eric

rrApprentice

fernley, nevada

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Just put the first flight on mine. So far I am very happy with the result. I didn't change any of the settings in the software from before the mod. But the whole machine feels much much smoother. The tail is quite a bit better, not perfect but much better. The bobbles on very fast hard cyclic stops is almost completely gone.
trex 500..
i have about the same results as posted above.

i did up the ele and ail gain 7 points each and upped the swashplate return speed 7 points. the trex 500 is really locked in now. tail is better but not perfect but its acceptable.

this mod is a must do....

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10-18-2010 11:32 PM  8 years agoPost 53
rpat

rrElite Veteran

Weirton, W. Va.

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I'm interested in knowing if this mod has helped settle your tail down. I have tried just about every thing to try and settle down the tail. I am going to try a different tail servo next. The 620 is in it now.

trex 700fbl cal30,minititan,, trx600fbl,trex250,logo 500,Velocity N2

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10-19-2010 12:54 AM  8 years agoPost 54
nickmcdonald

rrNovice

new lenox, il

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Tail problems = vibration problems

Scroll down to my post
http://rc.runryder.com/t609632p1/

But to answer you question, it will to some extent get rid of tail shakes.

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10-20-2010 03:30 AM  8 years agoPost 55
Ducati996

rrApprentice

Reno, Nevada

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Mod completed
Lets see how she does now. It was flying very good before, it will be fun to see any improvement. I will take my computer to the field to make any adjustments needed.

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10-21-2010 12:19 AM  8 years agoPost 56
Kona Chopper

rrKey Veteran

Kailua-Kona, Hawaii USA

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I think I am going to try this mod. I found some silicone sealant that is non-corrosive and sensor safe.



Why buy?? when you can borrow and no return

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10-22-2010 02:19 AM  8 years agoPost 57
nickt919

rrVeteran

New Orleans, Louisiana

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I get a very slight, momentary crack wag on the tail of my 600N if I really bang the sticks around. It will be like 3 or 4 quick, small kicks or wobbles... nervous is a good way to characterize it. This issue is not that bad and otherwise the model flies well. I'm thinking about trying this mod to see if I can completely eliminate it. I would think if there's a bad result or no difference the silicone can always be removed.

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10-24-2010 04:34 PM  8 years agoPost 58
elkmaster01

rrApprentice

Belt MT

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I did this mod to my 500 and 550,,I used Goop and I did remove the alignment tabs from inside the cover. Very noticeable difference. My 500 had a very touchy tail with the common occassional tail kick,,,,tail is now solid and 5 flights with no tail kick. Increased my 3G gains by 10% and the gyro gain 8%. Very simular results on the 550.

I'm very happy with the mod!!

Randy

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10-24-2010 05:07 PM  8 years agoPost 59
Malc1

rrKey Veteran

EVESHAM,UK

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I`ve done the mod on my 700E and still have those random near 45 degree twitch/wags as I am flying.

Also a very very slight tail wag still.

The heli itself was a bit `bouncy` on those full power climb outs.Just turned the aileron and elevator main gain dials down to just before 12 O`clock and this now seems Ok.

Just turned the Rudder lock gain down from default 70 to 60 though so I`ll see how she flys next flight out.

Overall I don`t notice a great deal of difference to how it was flying before.

Minicopter Diabolo - Kosmik200,Pyro750-56
SpectraG + G26 3D Max

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10-24-2010 05:11 PM  8 years agoPost 60
Rob P77

rrApprentice

Middletown, DE USA

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Is this mod only for those that are having problems or will I feel an improvement even though I'm not really having any issues? About the only thing I feel is a slight bobble or bounce when doing hard tic tocks but if I smooth my cyclic inputs its gone.

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HomeVendor Promoted Content › Align 3G 3G Mod
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