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Old Jan 01, 2013, 02:50 PM
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acicuecalo's Avatar
Spain
Joined Sep 2007
9 Posts
Hi, these are my two scratchbuilt multicopters:

Quad it is controlled by a KK2.0
Wooden frame.
11 x 5,5 props
Motors 750 KV
4 x Turnigy Plush 25A ESC's
808#16 Lens D Key chain camera


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Hexacopter it's equipped with a ardupilot mega, GPS, Magnetometer, Xbee Pro telemetry.
Frame made of aluminum and expanded PVC plastic.
9 x 5 props
Motors 750 KV
6 x Turnigy Plush 25A ESC's
GoPro Hero HD

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Last edited by acicuecalo; Jan 02, 2013 at 12:22 PM.
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Old Jan 01, 2013, 09:58 PM
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carr52's Avatar
United States, SC, Irmo
Joined Mar 2012
2,408 Posts
Looks great. Where did you get those 11x5 props? I can't find reverse props that size. Thanks.

Tom
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Old Jan 01, 2013, 10:49 PM
Emress
sirbow2's Avatar
United States, SD, Rapid City
Joined Nov 2011
1,934 Posts
https://www.google.com/webhp?sourcei...5%20CW%20props
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Old Jan 02, 2013, 12:21 PM
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acicuecalo's Avatar
Spain
Joined Sep 2007
9 Posts
Quote:
Originally Posted by carr52 View Post
Looks great. Where did you get those 11x5 props? I can't find reverse props that size. Thanks.
Tom
Search for Product ID: 074000047 and 074000046 oh hobbyking site.

Greetings.
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Old Jan 03, 2013, 03:34 PM
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saxon0010's Avatar
Magyarország, Hajdú-Bihar, Debrecen
Joined Feb 2009
72 Posts
Hi All,
here is mine xquad...

It's made of an aircraft hexacopter frame whit wood arms.
Before:
A képet az RcPilot.hu tárolja.

On the way
A képet az RcPilot.hu tárolja.

Finished:
A képet az RcPilot.hu tárolja.

A képet az RcPilot.hu tárolja.

A képet az RcPilot.hu tárolja.

I use KKboard, with Xcopter 4.7 firmware.

Saxon
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Old Jan 03, 2013, 04:06 PM
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Joined Apr 2012
49 Posts
Been perusing this thread to check out ideas for a new design... thought I'd post mine from a while ago... as simple as it gets but it worked great. cheap and simple to rebuild- perfect for learning and lots of crashing

First Homebuilt Quadcopter w/ CRASH - theRCexperiment (3 min 42 sec)
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Old Jan 03, 2013, 04:14 PM
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Joined Apr 2012
49 Posts
pics
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Old Jan 03, 2013, 06:39 PM
Multi Rotor Maniac
Stunt Double's Avatar
Australia, VIC, Melbourne
Joined Oct 2007
2,734 Posts
theRCexperiment, do yourself a favour and replace the NTM prop nuts with some M5 locknuts. Ive used quite a few of those same 750kv motors and the prop nuts have always been out of balance creating extra vibes.
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Old Jan 03, 2013, 08:57 PM
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Joined Apr 2012
49 Posts
Quote:
Originally Posted by Stunt Double View Post
theRCexperiment, do yourself a favour and replace the NTM prop nuts with some M5 locknuts. Ive used quite a few of those same 750kv motors and the prop nuts have always been out of balance creating extra vibes.
Good advice, I'll try that, thanks!
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Old Jan 04, 2013, 10:56 AM
Registered User
United States, OR, Portland
Joined Apr 2011
385 Posts
Quote:
Originally Posted by Stunt Double View Post
theRCexperiment, do yourself a favour and replace the NTM prop nuts with some M5 locknuts. Ive used quite a few of those same 750kv motors and the prop nuts have always been out of balance creating extra vibes.
Agreed, out of balance and way too heavy.

But locknuts (with nylon insert) are steel and will ruin the threads on the aluminum shaft after a couple prop changes (maybe more than a couple). Get aluminum nuts and they won't come loose... and using aluminum nuts on aluminum threads means no galvanic reaction too.
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Old Jan 04, 2013, 01:22 PM
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uk
Joined Oct 2007
665 Posts
Electrical conduit copter

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Description: This was made a while back.
Ship flew well with 'cc'
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Old Jan 04, 2013, 03:41 PM
Chasing dreams not d competion
uk
Joined Feb 2009
573 Posts
Quote:
Originally Posted by fallingdown View Post
Agreed, out of balance and way too heavy.

But locknuts (with nylon insert) are steel and will ruin the threads on the aluminum shaft after a couple prop changes (maybe more than a couple). Get aluminum nuts and they won't come loose... and using aluminum nuts on aluminum threads means no galvanic reaction too.
There are pros and cons for everything, if an aluminium nut and bolt pick up while tightening down they can easily become locked forever.
Good engineering practice in such instances is to use two different materials for the nut and bolt.

However, its unlikely you will easily get pure aluminium nuts and bolts, the more commonly available and normally used alloy nuts and bolts should be ok.

You will also get oxidisation with aluminium which can also ultimately lock them up well.

You can use a spring washer to stop nuts coming undone or if careful a splash of retainer (not thread loc).
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Old Jan 05, 2013, 05:01 PM
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Joined Sep 2011
42 Posts
Quote:
Originally Posted by heli-yeah View Post
Here's a couple pics of my new scratchbuild swept-back V-tail design...

Attachment 5241689

Attachment 5241687

Attachment 5241688

Attachment 5241684

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Attachment 5241685

Whacha think?
Nice Heli Yeah! I like the look of the V set-up... I would imagine with that setup you can piro at a pretty good rate... you arent too far up the road from me - I am in Portland TN right on the KY border on 65.
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Old Jan 05, 2013, 08:25 PM
Yep, Naza-controlled Tricopter
tonyestep's Avatar
St. Louis
Joined Apr 2002
1,454 Posts
This little quad is one of a kind. It's constructed from parts from a Bluesky RC micro-hex. I decided to use only four motors, so I repositioned two of the arms as shown.

The controller, motors and ESCs came from a Turnigy mini-quad V2. It flew great for a while, but after a few bumps and bangs into various walls, the frame more or less crumbled into bits. I repaired it with carbon splints, but eventually it had to be put out of its misery.

The controller is a KK2.0 running firmware 1.4. This is a darn good controller but the big surprise is how much more stable this quad is than its predecessor, the mini-Turnigy. Perhaps it's the much greater stiffness, or perhaps the configuration happens to hit some sort of sweet spot. In any event, the flight characteristics are excellent; on takeoff, it just rises straight up and hangs wherever you park it. Perfect for flying around inside the house, and its small size means that you can fly through doorways without coming too close.
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Old Jan 07, 2013, 12:36 PM
In progress...
Skewp's Avatar
Estonia, Tartu County, Tartu
Joined Jul 2012
213 Posts
Lots and lots to do

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