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View Full Version : Aaaahhrrrrrrrrggg! another boob with a Dx7


noguy
06-02-2007, 11:48 AM
OK so this is my first computer radio on my first heli. I have been flying my bcpp for about a year and fly decent with some minor acro and some invert. I was sooo excited to get this radio and now the last few hairs on my head are falling out.

My equipment is: all stock bccp except for hs-55 servos, telebee/zoom HHgyro, orion slow-max 300 brushed motor with 9t, DD tail (tractor) with same motor & prop as the almighty kyle (kyle rocks!) uses, and the Dx7/ar6100.

These are my current settings:

Swash mix:
Ail +75%
Ele +75%
pit +42%

Travel adjust:
thr-H 120% ail-L 135% gear +100%
thr-L 100% ail-R 135% gear -100%

ele-D 135% rud-L 115% pit-H 135%
ele-U 135% rud-R 115% pit-L 135%

subtrim has: gear=0; pit=L29 (i dont know why this servo was so far from center); thro=0; aile=L9; elev=u5; rudd=0

reversing is on for ch 2,3,4

auto d/r exp is off for all modes. I have
AILE @ +23% EXP; ELEV @ +23% EXP; RUDD @ +25% EXP with 100% D/R on all 3.

The gear=gyro and in the gyro sens menu I have RATE: 0: 78% & 1: 78%

I have no revo mixing.

The pitch curves are
NORM:___STUNT1:
L-47%____L-6%
1-53%____1-27.5%
2-60%____2-50%
3-75%____3-72%
H-96%____H-96%

throttle curves are
NORM:______STUNT1:
L-0%________L-100%
1-43%_______1-87%
2-70%_______2-75%
3-86%_______3-87%
H-100%______H-100%

Throttle hold is OFF; hold pos is 0%

It took a whole day of fiddling and reading every post on the web with Dx7 settings for the blade that I could find & watching the dx7 vid here on heli freak.
Well the heli now seems to hover OK. however it still just seems to have a less connected feeling than what the stock Tx had. The tail is not dialed in well... When I adjust the gain a little the trim seems to go way off.
Please help anyone who can help. I was sooo bummed when my stock Rx died...I have been wainting in anticipation for this DX7 to arrive and now I am bummed all over again that the heli just doesnt feel right to me. I know that different setting will suit different flying styles but does anyone see anything wrong with my settings or have any advice on changes.

Thanks, Noah

eddo22
06-03-2007, 04:09 AM
The gear=gyro and in the gyro sens menu I have RATE: 0: 78% & 1: 78%
if i remember correctly, the almighty kyle/ray, as well as gino cp, do not run gyro sense on their dx7's and for that reason neither do i. since you say your tail is what is not feeling connected, i would start with disabling your gyro sense on the tx and just adjusting the gain on the gyro itself.
hth,
ed

carlo_the_wonder_frog
06-03-2007, 09:37 AM
If the gyro sense wire is plugged into the gear channel, then you would use the endpoint adjustment on the gear channel and not gyro sense to adjust the gain for the gyro.

noguy
06-03-2007, 09:58 AM
eddo22, thank you fr the help. I will resort to this if I have to but I would like the ability to switch from HH to rate on the Tx.

Carlo the wonder frog, Why is it bad to use the gyro sense menu?
It does adjust the gain. I started with its set to 90. it had all kinds of tail wag and I decreased the setting until it was gone.....

Someone advised me to add some gain in the 3n1 and it will make it much better.

Thanks You uys again, Noah

noguy
06-13-2007, 09:12 PM
Ok so I am doing some trial and ERROR learning here.

I am reducing my expo settings to between 1%-5% I had them way to high....it was great for hover but was terrible for FFF.

Also My travel adjustmenst were screwy also. I will be resetting to 100% and then dialing things in with the ccpm settings.

I will repost my new settings once I am airborn again. sadly I'm mid rebuild :(

I still could use some guidance on the gyro stuff. If anyone has theirs working well with it being controlled through the Tx please let me know how your doing it.

Any other advice and input is greatly appriciated. , Noah

txflyer
06-13-2007, 09:22 PM
your having hard enough time setting things up so why add one more problem witht he gyro sense. i dont use it on my pro and will not use it on my rex. just land and hit the th. when the blades stop just give it alittle turn and try it again. it should only take 2 minutes to dial in a gyro to get the tail to stop wagging or hold..

myccpm is set as followed and i have no binding..

-80
+80
+35

travel adjustment is all set to 100%

noguy
06-14-2007, 02:02 PM
Txflyer,
Thank you for the info.

I dont know how the person whos settings I originally copied as a starting point came to thoses #'s but they have proven to be a poor starting point for me. The travel adjustments were unesseasry and out of balance for the swash servos.

I am going to just use the pot on the gyro and unhook the remote, but can anyone tell me why with the stock $30 Tx the remote gain worked fine and now with a $300 Tx it doesnt seem right?

carlo_the_wonder_frog
06-14-2007, 09:41 PM
When you use gyro sense you have a different gyro gain value for each flight mode ( 4 modes in all. normal, idle 1, idle 2, and hold)

The easiest way is to just plug in the gyro gain wire to the gear channel and then adjust the travel on the gear channel, once you have it set it will not change unless you throw the gear switch.

noguy
06-15-2007, 12:30 AM
So your saying the individual settings for norm-idle1-ect are not adjustable.
If I pick x% gain in the sense menu it will increase or decrease this value when I change flight modes?

If this is true I can see where the prob would be.

So if in the setup menu I change the gear channel from 'gyro' back to 'gear' it would be like the stock tx was wherever the travel is set to is where it will stay at all times. & I could set one side for HH and the other for rate mode and use the gear switch to change between the 2 correct?

Thanks carlo, You are a wonderful frog.
Noah

jorgy23
06-15-2007, 09:38 AM
/Subscribe

This is a very good informative post. I originally had my blade setup a copy of Finless' T-rex setup.. which made it very twitchy and for a newb like me extremely hard to fly. This new info has calmed the bird down quite a bit and made it much easier to fly I haven't put in your new settings but will try again tonight.

This has also me a much better understanding of the DX7 and all of it's intricasies..

Thank you.

noguy
06-15-2007, 06:37 PM
Ok here is where I am at. My bird is back togeather and now I am starting to dial in my settings.
Now I have:

Swash mix:
Ail +80%
Ele +80%
pit +40%

Travel adjust:
thr-H 46% ail-L 100% gear +78%
thr-L 100% ail-R 100% gear -78%

ele-D 100% rud-L 100% pit-H 100%
ele-U 100% rud-R 100% pit-L 100%

subtrim has: gear=0; pit=L29 (i dont know why this servo was so far from center); thro=0; aile=L9; elev=u5; rudd=0

reversing is on for ch 2,3,4

auto d/r exp is off for all modes. I have
AILE @ +5% EXP; ELEV @ +5% EXP; RUDD @ +15% EXP with 100% D/R on all 3.

The GYRO SENSE menu is out... :dontknow
In the 'input select' menu I have gear=gear
The travel adjust for the gear channel is +78% & -78%
(this is just starting point for me for now. I have only hovered and have not had a chance to get out side with the heli. Havent even switched to rate mode yet)
Everyone please post your settings for remote gyro gain. if you have any input there are many of us who would appriciate it.

In revo mixing I tried adding '20% R' to 'UP' in normal mode and this help the tail hold in punch outs but I am still tryin to dial it in.
I added the same for stunt mode to 'UP' & 'DOWN'


The pitch curves are
NORM:___STUNT1:
L-47%____L-0%
1-52%____1-25%
2-56.5%____2-50%
3-75%____3-75%
H-100%____H-100%

throttle curves are
NORM:______STUNT1:
L-0%________L-100%
1-28%_______1-83%
2-65.5%_______2-65.5%
3-84%_______3-83%
H-100%______H-100%


Anyways I want to head outside asap to get some fff & invert to see how she acts.
I'll post more of my experiance as it happens.
Thanks All, Noah

txflyer
06-15-2007, 06:59 PM
RUDD @ +15% EXP with 100% D/R on all 3.


i dont think you need expo on the rudder.. if so i dont think you should have that much..

i like my tail to stay put and be very responsive. reason being if something goes wrong or i loose control. the first thing i do is try to get the tail back to facing me. with expo i would think it would take more time to get the tail where you want it. but thats just me...

noguy
06-15-2007, 08:08 PM
txlyer, Yea I dont know what my prob with the rudder is I like this soft ceter for the rudder hovering here in the house...I may not like it once I get outside for some real action. I dont have expo in use on my sim and have no trouble being smooth with the rudder there. but with my blade here in the house the tail seems very aggresive with the DD. I was liking the very soft center stick for hovering in my very tiny indoor spot.
I think you are right though. Now that I think about it, once I get in some fff I think my thumb may instinctually be shy on the rudder input for turns.
Thanks, Noah

txflyer
06-15-2007, 08:17 PM
as you fly more, the a sharp tail isnt a bad thing. if a big gust of wind hits my pro when i was flying it. and the whole heli spin or something. i use the rudder and cyclic to get the tail back in. but ehy if it works for you then by all means. but you should try having it set to 0 and just be easyer on the sticks. it will cause problems down the road if you decide to turn it down. why not just get used to it now

noguy
06-17-2007, 12:17 AM
AHHH OK,
Good and bad news. I just got back from taking her outside for some real flyin'
the wind was up all day and was dying out a bit here at dusk so I went for a last minute fly. She was flying beautifully with the new settings. everything was smooth and responsive. Transition into idle-up wasnt even noticable. The tail was holdin great for me. I dont know why spektrum made the gyro sense menu if it doesnt work right for people. The gear channel is working great for me the way I have it setup now.
anyways @ wot in punchouts the tail held well imo. It would yaw left a few degrees at first and then be rock solid as she climbed for the clouds. They gryo was doing great at holding the heading with a side wind and held good in sideways flight too.
I however have to say that I dont fly sideways wwell with my left side forward so all of my experiance today was with the right side forward which means the tail motor just has to do less work to compensate for the sideways drag on the tail fin. I think the DD could hold up fine going the other way though.
The cyclic felt great and I think these will be the settings I stick with for a while until I find it doing something I dont like. I didnt have a chance to flip her over since about half way through my second battery I got toooo far away with the sun already set I lost my perception of what the side wind was doing to it and smack. One quick pilot error in fff 5ft off the ground and :dontknow more $ for the lhs.
I wish someone made some CF blades that were white or yellow. I cant see the disc in low light at all.

well I hope that all of my troubles can help some others out there that are new to this radio too.
Oh one other thing on my first pack when it was twords the end of the flight the tail would not hold @ wot. Does anyone else notice when the batt is getting low that the tail cant keep up @ wot. I poped in a fresh batt and she was back to top performance. I am wondering if I am flying my packs too long.

Anyways Thank You everyone who took the time to post with pointers and advice. The www is the only place I get any support and I really appriciate people giving there time to help a stranger.
Thank You Thank You Thank You, Noah

txflyer
06-17-2007, 01:17 AM
http://www.helifreak.com/download.php?id=25218

where to get them

http://www.helifreak.com/viewtopic.php?t=38865&sid=99d973d90fbe753504fd87c117f21c09

im sure they would reflect decently in low light. it sucked when i first threw my eflite carbons on. i hated not seeing the white disc. but after a few packs i started watching different points. any point that helped me to see when it was drifting away from me easyer.i good with right side in. but not so good with left side in.


also i bet your using stock eflite packs huh ?

grab a tp 730, or 910. the stock packs, are the reason the tail has to be retrimmed while you fly and the pack wheres down.

noguy
06-17-2007, 02:15 PM
Yeah with the carbons I could see the disc fine when the sky was the background, But when the grass or school buildings were behind the heli the disc pretty much totally disappeared. Really I just need to not fly so far away from myself or buy a bigger heli.
Those decals look really cool in that pic!!!
I also concidered airbrushing mine white.


also i bet your using stock eflite packs huh ?

grab a tp 730, or 910. the stock packs, are the reason the tail has to be retrimmed while you fly and the pack wheres down.

Yea I have 3 of those crappy batts. I think I will eventually get some TP's.
My trim doesnt have to be adjusted as the pack fades but the tails authority definatly declines in the last minute or so...
Do you know who has the best deals on some tp's online.
Thanks again, Noah

txflyer
06-17-2007, 03:06 PM
honestly i havent looked for them online yet. i can tell you also electrifly packs work with the stock eflite charger. i have one of the 3s 1500 20c packs.. its twice the weight of a stock pack. so i wouldnt use it on a pro. but if you can find a 1200 or anything lower. it would be fine. plus i think there about 10 bucks off the price of tp packs. i flew with my 1500 a handful of times. it bogged, but if you have a park 400 it should actually do just fine i would think..

noguy
06-19-2007, 05:31 PM
A little update:
Lowered the travel adjust(gyro gain) on the gear channel to 72-73%. The tail seemed to be running hot. I think I had the gain too high and was stressing the tail motor. The tail was still holding nicely in the breeze.
Also the rate mode setting is not working good either I will update when I get the rate mode dialed in.

txflyer
06-19-2007, 06:00 PM
are you ever going to fly in rate mode ? if not then why bother. i will use nothing but hh

noguy
06-19-2007, 06:06 PM
Yes sometimes on days when I am lazy I like a little weather vain action. Not too often though. I also like it when I am chasing my buddies Zagi plane around. I get tooooo far away from myself and if I can see what it is doing I'll dead stick for a bit and then I know it is flying nose first. I know I shouldnt be flying this little thing so far from myself but hey I'm having fun. :mrgreen:

txflyer
06-19-2007, 06:48 PM
good deal then.. farthest ive had my pro away from me is about 50 to 70 ft.. i wont go past that, but i like to stay within 20 to 30 ft..

noguy
06-19-2007, 11:02 PM
Wow I fly mine at 200-300 feet away sometimes. This little guy can just fly too fast for me to keep it within 30ft....
Probably why I have to fix mine every other time out..LOL