Octocopter

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christi
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Octocopter

Postby christi » Thu Nov 15, 2018 11:03 pm

My octocopter is ready.

Image

Image

Here you can download the FreeCAD file okto_flower_star_3.fcstd

The housing is made from 3mm wood with a laser cutter. The parts fit perfectly. No glue needed. But it is fixed with a steel thread rod.

The rings are made from XPS foam. Two templates have been cut out with a laser cutter. They have benn put on top and bottom of the foam. Then I was able to cut it out with a hot wire.

The 8 ring holders have been printed with a 3D printer.

The arms are made from aluminium and will be replaced by CFK some time.

The electronics is some more or less old stuff I had lying around: A pixhawk 2.4.8 flight controller with GPS, NG-UAVP 4mini brushless controllers, A LED stripe with192 WS2812 LEDs and an arduino nano for LED control, A 7000mAh LiPo, ...
triplus
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Re: Octocopter

Postby triplus » Thu Nov 15, 2018 11:30 pm

Looking good.

P.S. Will it fly?
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christi
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Re: Octocopter

Postby christi » Fri Nov 16, 2018 3:30 pm

triplus wrote:
Thu Nov 15, 2018 11:30 pm
P.S. Will it fly?
Yes, it is flying quite good
triplus
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Re: Octocopter

Postby triplus » Sat Nov 17, 2018 12:10 am

Nice.

P.S. If you will ever have some videos online. Don't forget to share.
Olav
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Re: Octocopter

Postby Olav » Sun Nov 18, 2018 10:24 pm

triplus wrote:
Sat Nov 17, 2018 12:10 am
Nice.

P.S. If you will ever have some videos online. Don't forget to share.
I second the request. Would love to see this fly. Very impressive.

In the FreeCAD file I see a camera attached. Is this meant to retract before landing or will you add some sort of landing gear?
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christi
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Re: Octocopter

Postby christi » Sun Dec 02, 2018 6:55 am

Olav wrote:
Sun Nov 18, 2018 10:24 pm
In the FreeCAD file I see a camera attached. Is this meant to retract before landing or will you add some sort of landing gear?
It is not finished yet, but I will try to retract the camera. The camera will be mounted with a 2 axis gimbal with brushless motors. The gimbal controller has inputs that can be connected to the remote control receiver. One channel can be used to control the pitch. I will try out if it can move the camera above the ground level of the octocopter.
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Kunda1
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Re: Octocopter

Postby Kunda1 » Mon Dec 03, 2018 12:30 am

:thumbsup:
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A_3
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Re: Octocopter

Postby A_3 » Tue Dec 11, 2018 9:45 pm

Wow! :D
m.cavallerin
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Re: Octocopter

Postby m.cavallerin » Fri Dec 28, 2018 6:07 pm

Hi,

very nice project!!!
As you may see from the screenshot, I started to design my own quad-copter, but I'm stuck with commercial components.
I was able to find some of them by using grabcad or onshape database; but I can't find any datasheets or drawings for items like: motors, blades, gps, ECS, etc..

On supplier web sites you can find some technical data, but it's hard to find technical drawings.

May you suggest me some link where can I get some 3D model or 2d drawings of commercial parts and datasheet too?
How did you you model these items?

Thanks for your help.

Regards

Michele
Screenshot from 2018-12-28 19-06-11.png
Screenshot from 2018-12-28 19-06-11.png (155.74 KiB) Viewed 1972 times
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christi
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Re: Octocopter

Postby christi » Mon Dec 31, 2018 11:32 am

m.cavallerin wrote:
Fri Dec 28, 2018 6:07 pm
May you suggest me some link where can I get some 3D model or 2d drawings of commercial parts and datasheet too?
How did you you model these items?
I have found some of the commercial parts on Thingiverse and at https://grabcad.com.
For propellers, here is a guide how to model them: https://forum.freecadweb.org/viewtopic. ... 0#p270716