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Multi-Rotors Discuss your quad copters and other multi engined choppers here.

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Old 10-12-2012, 01:31 AM   #1
copterrichie
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Default Showcase your Scratch-Build Copter

I would like to jump-start a new thread showcasing our scratch build multi-rotor copters. I have a number of copters now however I will start off with one of my Bicopter named Mini-Mollie.

AUW 1.0kg

http://www.youtube.com/watch?v=VV8E9JOdaJA


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Old 10-12-2012, 01:44 AM   #2
earthsciteach
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Default

I've seen plenty of 3 and 4 rotor multicopters, but not many twins. Is the yaw controlled by rotating the motors fore and aft? Seems far more complex than tri or quad copters.

All of my landings are three point landings if you count the spinner, too
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Old 10-12-2012, 01:48 AM   #3
copterrichie
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Originally Posted by earthsciteach View Post
I've seen plenty of 3 and 4 rotor multicopters, but not many twins. Is the yaw controlled by rotating the motors fore and aft? Seems far more complex than tri or quad copters.
Yes, the motors tilt on this copter at 60 degrees, the original design called for 45 degrees. I have not noticed much difference between the two however at 60 degrees, there seems to be a little more forward speed. This may be due to my flying skills have improved over time.


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Old 10-12-2012, 02:17 AM   #4
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Do you use a control board like the KK, or is it purely by TX input?

All of my landings are three point landings if you count the spinner, too
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Old 10-12-2012, 12:53 PM   #5
copterrichie
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Originally Posted by earthsciteach View Post
Do you use a control board like the KK, or is it purely by TX input?
I use the MultWii Controller board however, the KK board will work too. I have see a very Avatar style copters using them.
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Old 10-19-2012, 08:48 PM   #6
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Default Sweptback

Here are a few pictures of another one of my designs I have named Sweptback because of the configuration of the forward arms. The arms are swept to remove the props from the camera's view and because of this, other modifications had to be made to align the Center of thrust with the Center of Gravity. Original, this was a Tricopter design however I found this V-Tail configuration to be much more efficient.


http://www.youtube.com/watch?v=t-cZpvOf2cw

The mission of this copter is to carry a camera payload to a predetermined altitude and location, hover about, then return home. So none of my video will be about proving how well this design can handle 3D or Sport Flying. First rounds of testings looks very promising, nice and stable in mild winds, gust about 10-14mph. In this video, only the Gyro and Accelerometer are used. Next rounds of testing will include GPS and Altitude holding.

These copters use the MultiWiiCopter Flight controller Firmware running on ATMega328, Version II is using an ATMEGA 1280.


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Old 10-23-2012, 08:44 PM   #7
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Default This is interesting

Nice ideas!
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Old 10-24-2012, 01:32 AM   #8
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Not much to look at, but it flies like a dream, very stable GoPro platform. KK2 with 1.2, DT750's, RCTimer 30A unflashed, orange RX, RadicalRC Stinger kit


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HZ SuperCub. PZ Spit(Older), Dynam EZ Hawk, GWS A-10(prop), HL F9F Panther, GWS ME-109, E-Flite P-47D, Jodel BeBe 9, HL Wicked Wabbit P-47, BL Slow Stick, PZ T-28, Electrifly SE-5A, HL Mig-15, PZ Stinson, Quad and Tricopters
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Old 10-24-2012, 01:34 AM   #9
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Nice job there Tarheal63, always have loved those DT750, a very strong and reliable motor.
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Old 12-03-2012, 12:05 PM   #10
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Had the opportunity to do some flying this afternoon and tried flying close in and nose in.

http://www.youtube.com/watch?v=9bMbQ3gQZzE
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Old 12-12-2012, 04:26 PM   #11
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Default H-Quad

Here are some pics of my quad


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Old 12-12-2012, 04:39 PM   #12
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Very nice..
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