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Old Jun 13, 2007, 11:30 AM
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Maumee, Ohio
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Looking good! Thanks for the update!
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Old Jun 13, 2007, 01:31 PM
Just some bloke
Phil R's Avatar
Up north, UK
Joined Mar 2005
436 Posts
Isn't it great when things go well...

Well, today, nothing went well. Made a mess of the head bits I was making, then made a mess of them a second time around. Blew the fuse in my mill (and in my head!) and feel like I've wasted an afternoon...

STUPID HELIS!!!!!
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Old Jun 13, 2007, 03:07 PM
Everyone crashes sometime
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Orlando, FL and Washington D.C.
Joined May 2006
1,427 Posts
Some days you are the bug. Some days you are the windshield. Some days you start off as the windshiled and end up the bug.

So just chuck it off as a bad day and make the best of those coming up.

Carl

BTW, very, very impressive work so far.
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Old Jun 14, 2007, 11:36 PM
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Axesea's Avatar
I'm here because I'm not all there.
Joined May 2007
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Sheesh...I thought it was my idea

Lol...just like every other shutterbug!

I've been looking at power supplies. Would you believe 70 minutes on a single charge. http://www.horizonfuelcell.com/tech_toy.htm
I do not think their outputting enough power to lift a camera yet with the race car plant, but they have to be thinking about heli's! (oh please, please!)

Like you I'm a not that experienced with the heli's yet and my main reason for getting into it is to put a camera under one!

What kind of flight times are you hoping to get?

Regards,
Steve M.
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Old Jun 14, 2007, 11:44 PM
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Roosevelt UT
Joined Oct 2004
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hey....make me one? BEAUTIFUL WORK!!!
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Old Jun 15, 2007, 01:40 AM
mad heli scientist
Gadget01's Avatar
United States, OK, Oklahoma City
Joined Dec 2005
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Phil, what diameter main shaft are you using?
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Old Jun 15, 2007, 05:16 AM
Just some bloke
Phil R's Avatar
Up north, UK
Joined Mar 2005
436 Posts
Quote:
Originally Posted by Axesea
Lol...just like every other shutterbug!

What kind of flight times are you hoping to get?
This size heli is new to me, so I don't know yet. As this machine is going to be pretty much single use - to lift a camera, I don't see the need for a high headspeed. I only need enough to be able to fly safely and get out of trouble if I need to. I'm thinking 1500 should do it. that'll save a bit of power. Until I fly the thing, I just won't know. I'm aiming for a solid 10 minutes though as that's how long the camera takes to fill a 1 gig card...
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Old Jun 15, 2007, 05:17 AM
Just some bloke
Phil R's Avatar
Up north, UK
Joined Mar 2005
436 Posts
Quote:
Originally Posted by Gadget01
Phil, what diameter main shaft are you using?
I'm using an 8mm dia. silver steel main shaft.
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Old Jun 15, 2007, 06:23 AM
mad heli scientist
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United States, OK, Oklahoma City
Joined Dec 2005
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Just wondering how possible it would be for you to mill out a washout hub like that for a 6mm shaft. My Eco 8 would love it. Quote me a price.
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Old Jun 15, 2007, 06:32 AM
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Greybird's Avatar
Florida
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Uh, How about 2? I knew that was where you were heading Gadget.
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Old Jun 15, 2007, 06:44 AM
mad heli scientist
Gadget01's Avatar
United States, OK, Oklahoma City
Joined Dec 2005
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Unless Phil would just loan me his mill for the weekend..... and provide machining lessons.....

....and then I woke up.
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Old Jun 15, 2007, 11:21 AM
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I'm here because I'm not all there.
Joined May 2007
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flight times

Quote:
Originally Posted by Phil R
This size heli is new to me, so I don't know yet. As this machine is going to be pretty much single use - to lift a camera, I don't see the need for a high headspeed. I only need enough to be able to fly safely and get out of trouble if I need to. I'm thinking 1500 should do it. that'll save a bit of power. Until I fly the thing, I just won't know. I'm aiming for a solid 10 minutes though as that's how long the camera takes to fill a 1 gig card...
My thoughts too...just need a workhorse heli that would do the basics safely.
Further along I was thinking of using two motors in the hope that not being run at full power that might save on the battery life and still get me the lift using flat bottom blades. Then I was thinking two rotors for the lifting power...etc., etc. and I found these websites! You might get some ideas for your next heli! At least I found the electronics now for doing it!
http://www.rcgroups.com/forums/showt...t=chinook+c+47

http://www.techmodelproducts.com/twinn_rexx.htm

Keep on going with this one your work looks great. Wish I had the time and room to be where you are at now!
I just noticed your in the UK, great country, loved it immensly when I was over there in the late 70's. Of course the more north you go the better it looks! I'm coming back this Sept. for some schooling.

Great to see your work and ideas.
Steve
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Old Jun 15, 2007, 01:29 PM
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I'm here because I'm not all there.
Joined May 2007
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getting religious!

Quote:
Originally Posted by Hogster
I love the look of all that aluminium!!
David
Hey Phil...just another trivial thought among my many!
I noticed in your photos that your main gear is full of holes and your main plate you've got the motor mounted on is a solid flat bar...you can reduce your weight a lot if you make it look like swiss cheese! However, don't go crazy doing it if you do and weigh it before and after to see the difference. The holes are actually called "lightening holes" in the aerospace world I used to work in.

If you look at the carbon fiber vertical fins they are all cut full of holes. I mean the carbon fiber is not going to weigh much as thin as it is, but in the quest to save weight the holes are there.
my 2 pennies worth!

Steve
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Old Jun 15, 2007, 01:37 PM
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I'm here because I'm not all there.
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Open mouth insert foot...

Quote:
Originally Posted by Axesea
main plate you've got the motor mounted on is a solid flat bar...

Steve

perhaps both feet! I saw the photos from the underside!

Steve
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Old Jun 15, 2007, 07:43 PM
Just some bloke
Phil R's Avatar
Up north, UK
Joined Mar 2005
436 Posts
Quote:
Originally Posted by Axesea
perhaps both feet! I saw the photos from the underside!

Steve
Believe me... the heli is only 'roughed out' at the moment. I go to bed thinking about this stupid heli - where I can save weight and chop holes in it or thin down sections.
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