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Jan 22, 2010, 10:13 AM
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Talontsi96's Avatar
Never mind....
Last edited by Talontsi96; Jan 22, 2010 at 11:29 AM.
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Jan 22, 2010, 12:12 PM
making big holes in the sky..
Quote:
Originally Posted by signguy
Here is an all carbon/aluminum framed tricopter. I used the same plans, just cut from different materials. The center frame is two sheets of .012 aluminum over a plastic core, the arms are HC 10mm carbon with dowels glued into the ends. I used a HK401b for the yaw, but it needs to be hooked to a channel for gain. I'll program one of the knobs on the Eurgle to take care of the gyro gain.

At about 1 min in the video, I show the hands off stability. This is the first flight, using settings from my other copter.

http://www.vimeo.com/8895842

Looks like a Dream....

How do you attach the gyros??? Do you use some type of shock absorbing tape or just glued right on??
Jan 22, 2010, 12:15 PM
Registered User
rimshotcopter's Avatar
WOW, only thing that is needed is a GPS hold system.

Good Job Bob D, Excellent!!!!

Quote:
Originally Posted by signguy
Here is an all carbon/aluminum framed tricopter. I used the same plans, just cut from different materials. The center frame is two sheets of .012 aluminum over a plastic core, the arms are HC 10mm carbon with dowels glued into the ends. I used a HK401b for the yaw, but it needs to be hooked to a channel for gain. I'll program one of the knobs on the Eurgle to take care of the gyro gain.

At about 1 min in the video, I show the hands off stability. This is the first flight, using settings from my other copter.

http://www.vimeo.com/8895842
Jan 22, 2010, 12:19 PM
Registered User
signguy's Avatar
Quote:
Originally Posted by bajas
Looks like a Dream....

How do you attach the gyros??? Do you use some type of shock absorbing tape or just glued right on??
I use double sided foam tape. Most gyros come with the tape.
Jan 22, 2010, 12:26 PM
Brushless
cdi3d's Avatar
great job Bob!!! and what a great looking tri - Thanks for the weight info - I am shooting for 25oz on my next one but having a hard time getting there - Well Done!

Mike
Jan 22, 2010, 12:39 PM
Where'd The Wise Men Go?!?
AC5FF's Avatar
SUCCESS

Well, sort of.. LOL. Powered up my Tri just a few minutes ago. Everything powers up and is working good. Either needs a LOT of trimming or ??? I couldn't get it to stay anywhere near stable. Most of the test all three legs remained on the ground; occasionally one or two would lift off - but with it constantly wanting to drift and spin I didn't want to give it much more throttle. At one point I thought I was getting the trim close and actually lifted off the ground - maybe 6" - but it quickly banked and wanted to take off sideways on me.

I think I know part of my problem is in my Tri's arms. I built these out of 1/4" aluminum U channel. Looks and works great but I have noticed that I get a lot of wobble at the motors. I don't think this Uchannel is strong enough. A quick fix for this is some additional Uchannel I have that snugly fits over the top. That will double the walls as well as enclose the U to make it a box. Should strengthen it up quite a bit.

I need to get the battery back home and check it though. I only messed around w/this for 5 min or so, but I no longer have enough power to lift a single arm. I can max out my throttle and not get enough power to the motors to do anything. Battery should not have drained THAT fast!!! As it sits now, I am just under 2.5lbs AUW.

But today's success gave me some needed motivation to go on w/this !!!
Jan 22, 2010, 12:52 PM
Registered User
rimshotcopter's Avatar
Quote:
Originally Posted by AC5FF

But today's success gave me some needed motivation to go on w/this !!!
Congratulation!!!
Jan 22, 2010, 01:13 PM
Brushless
cdi3d's Avatar
Good job AC5FF I think you may be right about the arms - To much vibrations and ossilation can also mess with the gyros and your stability - Firm them up and give it another go -

Mike
Jan 22, 2010, 01:25 PM
Registered User
signguy's Avatar
Good job guys!! It amazes me that there are tricopters ( tricoptie?) built from this thread all over the world! I've seen post from Greece France England Canada Australia Scandinavia Spain Israel and all over the USA. Hope I didn't miss any countries. This is very cool! Chime in with your location when you get flying.

And once more, I bow down to the real tricopter master Sebastian AKA bas10an
here on the groups, Also Dave Rains ( don't know about the spelling) AKA lemmiwinks, where I first saw a working tricopter on RC Groups. This is a fantastic place to sit and watch technology go wild!

Thanks Guys
Bob D signguy
Jan 22, 2010, 01:45 PM
Registered User
Great flight Bob! What do you think makes that tri any more stable than your others?

Hang in there with your tri AC5FF. They all have their own personalities and you'll get yours figured out shortly. It feels good fire it up the first time huh?
Jan 22, 2010, 01:54 PM
Registered User
signguy's Avatar
Quote:
Originally Posted by CoastalTom
Great flight Bob! What do you think makes that tri any more stable than your others?

Hang in there with your tri AC5FF. They all have their own personalities and you'll get yours figured out shortly. It feels good fire it up the first time huh?
Hi Tom

I don't think its any more stable than the other dt750 copter, I was lucky to have near windless weather to show how stable they can be. I still like the wood copters the best. Nothing makes me feel better than being able to fix a totaled tricopter with a table saw and ten minuets!

Bob D
Jan 22, 2010, 02:03 PM
Registered User
rjarois's Avatar
signguy, your new build looks awesome...good job man..randy.
Jan 22, 2010, 02:08 PM
Registered User
I hear ya Bob! Mine is all wood as per your specs. It's nice to have a hobby section at Lowes.

Tom
Jan 22, 2010, 02:45 PM
CASA Certified RPAS Instructor
The_Mongrel's Avatar
Well said Bob. I think I have read through this thread about a dozen times, and still reading though it. I am in Australia and in the middle of my build.

I have a question for you guys...

I fly Mode2 and would like to know what where you guys put the "Yaw" stick? Is it the typical rudder channel on the left stick, keeping Ail and Ele on the right stick?

Cheers
-J
Jan 22, 2010, 02:50 PM
Registered User
signguy's Avatar
Quote:
Originally Posted by The_Mongrel
Well said Bob. I think I have read through this thread about a dozen times, and still reading though it. I am in Australia and in the middle of my build.

I have a question for you guys...

I fly Mode2 and would like to know what where you guys put the "Yaw" stick? Is it the typical rudder channel on the left stick, keeping Ail and Ele on the right stick?

Cheers
-J
Yup mode 2 here too. Rudder (Yaw) on the left roll and pitch on the right. Wish I still had my EK logictrol single stick radio. I should build one out of the eurgle!


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