HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Jan 15, 2013, 04:05 PM
Suspended Account
United States, AZ, Tucson
Joined Mar 2012
3,265 Posts
Quote:
Originally Posted by alwaysconfused View Post
So, what I take from this, roughly $1100 is in the low to mid range for a multirotor? And if I spend $1200 to $2000 I will get a better set up? And roughly $2000 to $10000 (yeah I know they are superdooperwhirlygig awesome at $10k) I can get something that will stick in the sky like the moon?

Oh..and by the way...here is HellScream (named after what I went through and did a lot of)

http://www.youtube.com/watch?v=4YCa0dDVNVw
I Googled and I could not find a superdooperwhirlygig to buy!
goldsworthy is offline Find More Posts by goldsworthy
Reply With Quote  (Disabled)
Sign up now
to remove ads between posts
Old Jan 15, 2013, 04:33 PM
Registered User
Bill Glover's Avatar
United Kingdom, Bracknell
Joined Nov 2000
11,642 Posts
LOL re. transmitters, I'm using an 11 year old one for my F550 / Naza.
Bill Glover is offline Find More Posts by Bill Glover
Reply With Quote
Old Jan 15, 2013, 04:47 PM
Suspended Account
United States, AZ, Tucson
Joined Mar 2012
3,265 Posts
Quote:
Originally Posted by Bill Glover View Post
LOL re. transmitters, I'm using an 11 year old one for my F550 / Naza.
WOW! 11 years old? where do you find the replacement vacuum tubes?
goldsworthy is offline Find More Posts by goldsworthy
Reply With Quote  (Disabled)
Old Jan 15, 2013, 05:05 PM
Registered User
Bill Glover's Avatar
United Kingdom, Bracknell
Joined Nov 2000
11,642 Posts
Quote:
Originally Posted by goldsworthy View Post
WOW! 11 years old? where do you find the replacement vacuum tubes?
It's when the mainspring breaks that you really have a problem

Last year I actually dug out a 27 year old TX (bought in 1986), that I last used in 2001. I was toying with the idea of having a copilot control the gimbal via a second receiver.

I remember replacing the battery pack once, but the nicads in it must have been at least 13 or 14 years old. Anyway it was dead as a dodo (of course), but after cycling the pack a few times it was consistently giving over 650 mAh ... and they are 600 mAh cells! As far as I could tell it still worked perfectly. Believe it or not this is a 'computer' TX - PCM/PPM, with mixers etc. controlled by little pots and dip switches inside the back of the case
Bill Glover is offline Find More Posts by Bill Glover
Reply With Quote
Old Jan 15, 2013, 05:08 PM
Registered User
BerndM's Avatar
Near Disneyland in Placentia, Southern California, USA
Joined Aug 2004
500 Posts
Quote:
Originally Posted by jetstuff View Post
Don't forget that hanging that much weight off the front of the basic 450 will need just as much weight hanging out the back to keep the CofG centred
All very true BUT this doesn't mean you need to add additional weight at all. You simply need to move the battery pack towards the rear until you are once again in balance.

Regards
Bernd

Witespy-DJI NAZA F450 Flamewheel
2212/920kv DJI motors and Opto 30A ESC's
10x4 Gemfan Woodies Props / GoPro Hero HD2
Fat Shark Predator V2 FPV
AUW 3S-4000mah = 1585g
Spektrum TX DX-7 (original) / Spektrum RX AR6200
BerndM is offline Find More Posts by BerndM
Reply With Quote
Old Jan 15, 2013, 05:13 PM
Registered User
Joined Dec 2012
287 Posts
There are a few premades out there for less than $2000 that I have heard a lot of good things about. and there are people that sell services to put them together and tune them as much as they can in a day. But even though I dont have the best, or the fastest and I went through much hell getting mine where it is at now... I think I am happier doing it this way.
alwaysconfused is offline Find More Posts by alwaysconfused
Reply With Quote
Old Jan 15, 2013, 05:17 PM
Registered User
BerndM's Avatar
Near Disneyland in Placentia, Southern California, USA
Joined Aug 2004
500 Posts
Quote:
Originally Posted by dedfish View Post
My mount works pretty good. I don't get any issues from vibration. The downsides of this is I'm really seeing the jello from the rolling shutter even at 60fps.

I'm also still getting interference at 1080p. I added the snap on ferrite chokes to each end of the GPS. I also added a snap on around all the servo wires from the receiver to the Naza. I'm going to move that one to the motor side of the Naza and see it that changes anything.
Hey dedfish
You actually ARE having issues from vibration.
It is this vibration (high frequency) that is the culprit causing the "jello" effect in the GoPro.
Minimize the vibration and your "jello" will disappear.

BTW, I like your camera mount concept. It looks great. If it were me, I would apply a nice bead of hotglue along the seams between the wood platform and the arms, both top and bottom. This may eliminate a good chunk of the vibration issue.

Regards
Bernd

Witespy-DJI NAZA F450 Flamewheel
2212/920kv DJI motors and Opto 30A ESC's
10x4 Gemfan Woodies Props / GoPro Hero HD2
Fat Shark Predator V2 FPV
AUW 3S-4000mah = 1585g
Spektrum TX DX-7 (original) / Spektrum RX AR6200
BerndM is offline Find More Posts by BerndM
Reply With Quote
Old Jan 15, 2013, 05:23 PM
DJI and Empire Support
T J Gilbert's Avatar
United States, MS, Ridgeland
Joined Feb 2009
4,848 Posts
Happier (and smarter)

Quote:
Originally Posted by alwaysconfused View Post
There are a few premades out there for less than $2000 that I have heard a lot of good things about. and there are people that sell services to put them together and tune them as much as they can in a day. But even though I dont have the best, or the fastest and I went through much hell getting mine where it is at now... I think I am happier doing it this way.
The way you chose to do it, and the fight you went through to tune your rig will reward you in the end.
You now know a thing or two about how the airframe works and how to fix it.

We all helped a guy back during the summer that purchased a custom built rig.
He was totally lost.
Flew very dangerously.
Can't even recall his name.
He dropped by, used our services until we helped him fix his rig, and moved on.

I'd like to see you stick around...
T J Gilbert is offline Find More Posts by T J Gilbert
Site Sponsor
Latest blog entry: If You Don't See It Here...
Reply With Quote
Old Jan 15, 2013, 05:29 PM
Registered User
Joined Dec 2012
287 Posts
Quote:
Originally Posted by T J Gilbert View Post
The way you chose to do it, and the fight you went through to tune your rig will reward you in the end.
You now know a thing or two about how the airframe works and how to fix it.

We all helped a guy back during the summer that purchased a custom built rig.
He was totally lost.
Flew very dangerously.
Can't even recall his name.
He dropped by, used our services until we helped him fix his rig, and moved on.

I'd like to see you stick around...
Ill stick around. Too many smart people in here that can help me to not stick around. And a lot of good ideas for other stuff too. Even helped me work out an issue I was wondering about and never had to even ask a question..lol
alwaysconfused is offline Find More Posts by alwaysconfused
Reply With Quote
Old Jan 15, 2013, 05:30 PM
Registered User
Joined Dec 2012
287 Posts
Oh and when I finish getting my long range FPV plane set up I will be happy again..lol No issues..just a beastly hellscream thingy has eaten up all my time!
I am flying it (the multirotor) on it tonight...Wish me luck! (I left my fpv cam back at home....)
alwaysconfused is offline Find More Posts by alwaysconfused
Reply With Quote
Old Jan 15, 2013, 05:37 PM
Flying R/C since 1964
kallend's Avatar
United States, IL, Chicago
Joined Sep 2004
3,506 Posts
Quote:
Originally Posted by goldsworthy View Post
WOW! 11 years old? where do you find the replacement vacuum tubes?
The first Tx I ever made DID have vacuum tubes. That was sometime around 1962.
kallend is offline Find More Posts by kallend
RCG Plus Member
Latest blog entry: Using a DX9 to "strobe" LED...
Reply With Quote
Old Jan 15, 2013, 05:40 PM
Registered User
United States, FL, Tampa
Joined Apr 2012
336 Posts
Quote:
Originally Posted by BerndM View Post
Hey dedfish
You actually ARE having issues from vibration.
It is this vibration (high frequency) that is the culprit causing the "jello" effect in the GoPro.
Minimize the vibration and your "jello" will disappear.

BTW, I like your camera mount concept. It looks great. If it were me, I would apply a nice bead of hotglue along the seams between the wood platform and the arms, both top and bottom. This may eliminate a good chunk of the vibration issue.

Regards
Bernd

Witespy-DJI NAZA F450 Flamewheel
2212/920kv DJI motors and Opto 30A ESC's
10x4 Gemfan Woodies Props / GoPro Hero HD2
Fat Shark Predator V2 FPV
AUW 3S-4000mah = 1585g
Spektrum TX DX-7 (original) / Spektrum RX AR6200
Most of the jello I saw was when I had the camera at an angle and I was capturing video of the trees underneath. There was a lot of wavy jello. When the camera is pointed forward there is a lot less, almost unnoticeable. I added a very thin rubber washer to each screw mount. I'm not sure how much of a difference it made though. I wouldn't want to use glue since I'd like to be able to remove it easily. I have thought about maybe a strip of inner tube between the arms and top plate.
dedfish is offline Find More Posts by dedfish
Reply With Quote
Old Jan 15, 2013, 05:53 PM
Registered User
Joined Dec 2012
287 Posts
Man... I guess the gopro set the COG off. I had in a closed in warehouse and it was drifting all over the place.. I trimmed most out (I think) but looks like I need to get it closer to the center...good flight but not successful..lol
alwaysconfused is offline Find More Posts by alwaysconfused
Reply With Quote
Old Jan 15, 2013, 06:06 PM
DJI and Empire Support
T J Gilbert's Avatar
United States, MS, Ridgeland
Joined Feb 2009
4,848 Posts
Cog

Quote:
Originally Posted by alwaysconfused View Post
Man... I guess the gopro set the COG off. I had in a closed in warehouse and it was drifting all over the place.. I trimmed most out (I think) but looks like I need to get it closer to the center...good flight but not successful..lol
COG is very important with things that fly.
(You know that)
You can't just hang some weight off an end of something that's balanced and expect results not to change.
Don't use trims with Naza.
They add each time you power up because the FC assumes that the sticks are centered when they are actually off by the trimmed amount.
Eventually, the CSC won't be recognized (among other things).
The trims thing is in the manual.
(Hint: pg17)
Sounds like a reread might be beneficial.
T J Gilbert is offline Find More Posts by T J Gilbert
Site Sponsor
Last edited by T J Gilbert; Jan 15, 2013 at 06:20 PM.
Reply With Quote
Old Jan 15, 2013, 07:14 PM
Registered User
Joined Dec 2012
287 Posts
Quote:
Originally Posted by T J Gilbert View Post
COG is very important with things that fly.
(You know that)
You can't just hang some weight off an end of something that's balanced and expect results not to change.
Don't use trims with Naza.
They add each time you power up because the FC assumes that the sticks are centered when they are actually off by the trimmed amount.
Eventually, the CSC won't be recognized (among other things).
The trims thing is in the manual.
(Hint: pg17)
Sounds like a reread might be beneficial.
I thought I had set the battery back enough to balance the weight enough. As far as the trims go I do remember now that it mentioned not using it.
alwaysconfused is offline Find More Posts by alwaysconfused
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
New Product DJI WooKong-M Autopilot System for multirotors **Owners Thread** DJI INNOVATIONS Multirotor Electronics 19991 Today 10:42 AM
New Product MultiWiiCopter "MiniWii" FC - Cheap, small 6DOF FC JussiH Multirotor Talk 707 Jan 01, 2013 08:54 AM
Discussion DJI Innovation helicopter autopilot XP.3.1 for European customers JoelT Aerial Photography 2 Sep 24, 2009 11:43 AM
New Product United Hobbies FC 28-05 & FC 28-22 brushless outrunners $5.95 ea. JawaSnack Hot Online Deals 9 Jul 17, 2007 10:31 AM
Futaba FC-18 teacher to FC-16 pupil problem . jmquetin Radios 5 Nov 02, 2004 06:48 AM