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Old Oct 10, 2012, 04:00 PM
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Joined Oct 2012
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Question
Thinking about building my own frame. What do I need to worry about? (pics inside)

Sooooo, I am tinkering with the idea of building my own frame for a hex, but since I am a total noob in the field, I need some advice.

The parts I am planning on using for a start is these (going to start out with a quad-build, and then later on move forward with the HEX project as i gather experience)
I am posting the list here again, and hoping for some inputs on the parts this time. Previous thread was never replie´d to.

Quote:
The quad/hex


http://www.hobbyking.com/hobbyking/s...ion_Board.html

3* http://www.hobbyking.com/hobbyking/s...IRS_20PC_.html

2* http://www.hobbyking.com/hobbyking/s...0pcs_set_.html

http://www.hobbyking.com/hobbyking/s...occessors.html

6* http://www.hobbyking.com/hobbyking/s...C_3A_UBEC.html

6* http://www.hobbyking.com/hobbyking/s...ner_750kv.html

http://www.hobbyking.com/hobbyking/s...rol_Board.html

http://www.hobbyking.com/hobbyking/s...ame_600mm.html

http://www.hobbyking.com/hobbyking/s...ming_Card.html

2* http://www.hobbyking.com/hobbyking/s...7SF_4_pc_.html

2* http://www.hobbyking.com/hobbyking/s...ion_4_pc_.html

2* http://www.hobbyking.com/hobbyking/s...dProduct=22438

2* http://www.hobbyking.com/hobbyking/s...dProduct=22439

http://www.hobbyking.com/hobbyking/s...rm_2s_4s_.html

http://www.hobbyking.com/hobbyking/s...po_users_.html

6* http://www.hobbyking.com/hobbyking/s...t_collet_.html

2* http://www.hobbyking.com/hobbyking/s...trol_Unit.html

Radio

http://www.hobbyking.com/hobbyking/s...Firmware_.html

http://www.hobbyking.com/hobbyking/s...Blue_DIY_.html

http://www.hobbyking.com/hobbyking/s...8FR_II_RX.html

Battery and charger

http://www.hobbyking.com/hobbyking/s...cessories.html

http://www.hobbyking.com/hobbyking/s...er_Supply.html

2* http://www.hobbyking.com/hobbyking/s...Lipo_Pack.html


Random stuff I might need

http://www.hobbyking.com/hobbyking/s...out_Cable.html

http://www.hobbyking.com/hobbyking/s...out_Cable.html

http://www.hobbyking.com/hobbyking/s...idProduct=9392

http://www.hobbyking.com/hobbyking/s...dProduct=17853

http://www.hobbyking.com/hobbyking/s...dProduct=17847

http://www.hobbyking.com/hobbyking/s...dProduct=18270

http://www.hobbyking.com/hobbyking/s...dProduct=22734

Alternative props

http://www.amazon.com/Gemfan-Carbon-.../dp/B0091P31II

http://www.amazon.com/Gemfan-Parkfly...ref=pd_sim_t_1

I have now startet designing a HEX frame for fun, and wanted to get some inputs.



Will it be a bad thing to have the motors/props lifted above the main frame like in this design?

Do the props HAVE to be in a circle, or can the software be tweaked, or will it not matter if they are a tad off (in this design, they are not perfectly in a circle, but the middle ones slightly pushed to the center)

Planning on cutting this from carbon fiber 2 mm sheets, and right now, it has a weight of about 500 grams. Hobe to reduce this though.

Inputs?
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Last edited by metap0Pe; Oct 12, 2012 at 04:16 AM.
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Old Oct 12, 2012, 04:14 AM
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Motor holder and prop protecters done. Still need a bit more plates for stabilizing on the main frame i think. Guess this isnt really a thing you want to crash with

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Old Oct 12, 2012, 05:59 AM
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Maybe if you posted in the scratch built board, you would get more responses
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Old Oct 12, 2012, 06:01 AM
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Well, i am nowhere near ready to build, and right now just gathering intel But maybe it should be moved. I just thought that since i still have loads of questions, it should be here
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Old Oct 12, 2012, 06:13 AM
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United States, MA, Swansea
Joined Oct 2009
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If multicopters are still new to you, I highly recomend you build a quadcopter first and get used to flying. Because you WILL crash, there is no avoiding that. Id rather ceash a cheap build than a home built masterpiece.
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Old Oct 12, 2012, 06:18 AM
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Quote:
Originally Posted by WhiteFox50 View Post
If multicopters are still new to you, I highly recomend you build a quadcopter first and get used to flying. Because you WILL crash, there is no avoiding that. Id rather ceash a cheap build than a home built masterpiece.
Quote:
The parts I am planning on using for a start is these (going to start out with a quad-build, and then later on move forward with the HEX project as i gather experience)
Under any circumstances, i will not take it to hard if i crash. I will just cut another one.

Planning on cutting the prototype in alu, and see how it handles.

Still have the questions about wether it is a sucky idea to have the motors lifted higher than the frame itself, as well as if it will cause me problems not having them in a total round circle?

Thanks for your reply´s
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Old Oct 12, 2012, 08:29 AM
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Try it out, if it doesn't work then maybe the flight controller will have to be the same height as the motors, but in theory it should be flyable.
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Old Oct 13, 2012, 02:45 PM
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Think i will have it cut in alu in the upcoming weeks and try the setup out, and see how rigid it is, and then adjust from there.
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Old Oct 13, 2012, 03:56 PM
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I think you may be interested in seeing this type of frame flying, so please look here.
http://www.rcgroups.com/forums/showt...1728460&page=3
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Old Oct 20, 2012, 07:59 AM
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Thanks for the link.

If there is any mods around here, please move the thread to the scratch build sub

A little update in the frame. Made room for ESC´s and two 2200Mah lipo´s. Total weight with lipo´s and ESC´s should be around 1 kilo. Also added landing gear.

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Old Oct 20, 2012, 10:31 PM
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Looks good but you need to reinforce where the arm attaches to the frame from what it looks like would be a point of disconnection if you crashed... the way it is now depending on how it crashed top or bottom would act as a pivot and put all the force on the bottom bolt or top bolt or screw depending on how it crashed hope this makes sense but def looks really cool and a good design...
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Last edited by gitit20; Oct 20, 2012 at 10:42 PM.
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