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Jan 28, 2012, 01:20 PM
Registered User
Hi Stunt Double,
You are sowing doubts in my mind

I played around with a couple of tricopters before switching to quads.

I need a folding tri for easy transport. I like the ideas behind the T shape. I seem to remember, quite some time ago, that a couple of experienced fliers went back to Y frames after using T frames.

I reckon it will be easy (and cheap enough) to build both a T and a Y frame. I could try the T first and swap the gear onto the Y if Necessary.

That's it then... cunning plan now formulated.... I will build both and test the T first
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Jan 28, 2012, 01:37 PM
Registered User
Just ordered some silicon tube off Ebay. Got to try Big Jim's latest anti-vibe idea.
Jan 28, 2012, 05:14 PM
An ordinary sort of incredible
mr.incredible's Avatar
Quote:
Originally Posted by sparklet View Post
Just ordered some silicon tube off Ebay. Got to try Big Jim's latest anti-vibe idea.
Anti-vibe on the FC is not a good idea. It usually multiplies the vibes. It does help however with camera mounts. I guess the FC just isn't heavy enough.
Jan 28, 2012, 07:15 PM
Registered User
BigJimNZ's Avatar
Quote:
Originally Posted by opus View Post
Anti-vibe on the FC is not a good idea. It usually multiplies the vibes. It does help however with camera mounts. I guess the FC just isn't heavy enough.
The tri in this flight has silicon tube for the FC board. There was a reasonable breeze blowing as you can hear.

You are right Opus. The lack of mass in the FC was an issue.
I have found this solution way better than the fuel tube which had a propensity to wave around and resonate. The slices of a bigger heavier wall tube are now on the side.
It's quite rigid so there is less instance for res. They are placed at 45 to the corners to make the setup more resilient.
I do balance motors and props though as every good boy should.
Though I fitted a prop with about 10mm tracking issues and it never blinked


Tricopter At Kiwi Esplanade Mangere Bridge (2 min 2 sec)
Last edited by BigJimNZ; Jan 28, 2012 at 07:42 PM.
Jan 29, 2012, 12:00 AM
Registered User
Thanks Kaycee I really appreciate it as I enjoy flying my Tri almost more than my FPV plane but am fed up with gryo hassles and want to build mk 2
cheers Frans
Jan 29, 2012, 10:20 AM
Registered User
Quote:
Originally Posted by opus View Post
Anti-vibe on the FC is not a good idea. It usually multiplies the vibes. It does help however with camera mounts. I guess the FC just isn't heavy enough.
I usually mount the Arduino amd WM+ onto velcro. One piece stuck to the back of each board and the other pieces stuck onto the plywood centre piece. I haven't had any problems with this method, it's quick.easy and the velcro seems to provide enough vibration damping.

I was going to try out the silicone tube for camera mounting.
Jan 29, 2012, 04:42 PM
Registered User
Hey guys after 3 hrs of dredging the lake I finally hooked my tricopter !!

As you can see from the picture it was a failed rear prop that caused the crash. Rear motor is stuffed and servo has a stripped gear.

Everything was placed in distilled water and sprayed with electrical contact cleaner spray.. Still drying in the garage so hopefully most of the gear still works (pls??)

Assuming the GoPro works I will need to somehow clean the inside of the lens or replace it. and a new battery of course.. Any tips/links welcome here...

I did manage the get the sd card going and downloaded the footage from the ill fated flight. It was very windy but as you can see I was having a great time out there enjoying the scenery..

Tricopter recovered from crash into lake Bullen Merri Camperdown Raw onboard footage (3 min 46 sec)

(it is un-edited so you will need to go to 43 seconds for takeoff)
Jan 29, 2012, 05:03 PM
Flying a Chipmunk in Portugal
jhsa's Avatar
Good that you found it.. I hope that the electronics can be saved
Jan 29, 2012, 06:04 PM
Registered User
BigJimNZ's Avatar
Quote:
Originally Posted by jbalat View Post
Hey guys after 3 hrs of dredging the lake I finally hooked my tricopter !!

As you can see from the picture it was a failed rear prop that caused the crash. Rear motor is stuffed and servo has a stripped gear.

Everything was placed in distilled water and sprayed with electrical contact cleaner spray.. Still drying in the garage so hopefully most of the gear still works (pls??)

Assuming the GoPro works I will need to somehow clean the inside of the lens or replace it. and a new battery of course.. Any tips/links welcome here...

I did manage the get the sd card going and downloaded the footage from the ill fated flight. It was very windy but as you can see I was having a great time out there enjoying the scenery..

http://www.youtube.com/watch?v=GrCYjO6jzf0
(it is un-edited so you will need to go to 43 seconds for takeoff)
Oh good work man I hope some of it is salvageable
Jan 29, 2012, 06:40 PM
Registered User
flyerdiver's Avatar
Way to not give up! Water is Murphy's favorite, of that I'm sure.
Jan 29, 2012, 06:58 PM
Registered User
I cant believe you got the tri back!! To get the lens off the gopro you need to put a bit of heat onto the thread (hair dryer works) to loosen up the thread locker otherwise you'll break it.
Jan 29, 2012, 08:38 PM
Registered User
BigJimNZ's Avatar
Couple of pics of the anti vibe camera mount for you Sparklet
Might give you some ideas for yours

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Last edited by BigJimNZ; Jan 29, 2012 at 08:45 PM.
Jan 29, 2012, 09:32 PM
Registered User
Here's my Tricopter build plus videos - tons of fun !

http://www.ilovefpv.com/
Jan 29, 2012, 11:57 PM
Registered User
Wow amazing the Go Pro even took some underwater shots.
If your battery came off in the crash the electronics should be ok but if it was still giving juice then you can have problems.
Luckily it wasnt Sea water, a guy by us who does pro Filming lost his whole chopper cameras everyting about 35G in the Sea... bummer
Jan 30, 2012, 02:14 AM
Assault the sky
secretspy711's Avatar
For everyone's enjoyment... Here's a video of my tricopter with an onboard camera getting hit midair by my friend's Bixler airplane. The tricopter didn't even care, while the Bixler flat-spins and hits the ground off-camera.

The collision is at exactly 0:50.

Bixler hits Tricopter (1 min 22 sec)


Tricopter: 1
Bixler: 0

Tricopter Specs:
DT750 motors
APC 10x4.7 props
Turnigy Plush 18A ESC's
Hobbyking Quadcopter Board V2, flashed to Tri configuration
Zippy 3000mAh 3S LiPo
HD Wing Camera from HobbyKing
Turnigy 390DMH tail servo
Last edited by secretspy711; Jan 30, 2012 at 02:24 AM.


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