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Century Radikal E640 - Swift 16 NX
› Here's one I bet you've not heard yet.
11-01-2004 07:31 PM  13 years agoPost 1
RC-Hawk

rrApprentice

Westminster Colorado

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Finally got the tail motor issue corrected (I hope)
I put the diodes in the tail, (working on the 10.2 zener diodes installed, I have a thread on allaboutcircuits.com).

Using the GWD ED50 for the DD tail. Works great...
Here's the issue now.
Prop presses on tight, stays on good (while the temp is over 50)
Flew this morning in the parking garage, (temp was 28 when I got out of the truck), the prop decided to fly away on its own. Tried 3 different props, they press on, but when loaded, they come off.

I guess I need the GWS prop shaft that has the set screws and the retainer bolt to fly when it gets a little colder eh?

btw... motors never did get warm to the touch.....

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11-01-2004 08:20 PM  13 years agoPost 2
blighty

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uk

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have you seen this. i've been using one for a year or so, not lost a prop yet.

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11-01-2004 08:24 PM  13 years agoPost 3
RC-Hawk

rrApprentice

Westminster Colorado

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You are a little slim on details here....
More input blighty.... more input....
What is it?
Where do I get one?
Do I need to make one?
Is that a left hand treaded bolt?


More input..... More Input......

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11-01-2004 08:26 PM  13 years agoPost 4
RC-Hawk

rrApprentice

Westminster Colorado

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Also... how about some info on the park gyro copter that you have in your gallery!
Looks ......interesting...

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11-01-2004 08:35 PM  13 years agoPost 5
blighty

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uk

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hi hawk

it's a DD prop adaptor,

from me

you could make one your self,

it's a right hand thread but don't worry i have sold a lot of these over on the Ikarus BBS and have had no complaints (so far). what tends to happen is when you have a misshap the prop spins off, saving the prop and the motor, then just put it back on and of you go again. plus if you do brake the prop it take's seconds to put on a new one.

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11-01-2004 08:45 PM  13 years agoPost 6
hingus2000

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West Midlands UK Posts: 75069

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how much?

Tom

T-Rex SA, Anodized Head, Gy240, 3s TP 2100mah, Align 35A ESC, 430L Motor

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11-01-2004 08:46 PM  13 years agoPost 7
RC-Hawk

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Westminster Colorado

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Ok. I have no lathe... yet.
How much?

Where are you located (curious to see how long it would take to get here).
Looked at a few sites and have not yet see them for sale.

Any info on the gyrocopter?

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11-01-2004 08:57 PM  13 years agoPost 8
blighty

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uk

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that was a fun little project. it was an own design. from learning loads from the net. cant remember all the sizes. 32in rotor, 28in long, controls where ele,ail,rud.thr. the cyclic was done by a LIVE rotor head, so when you put on some cyclic the whole head would move in that direction( if you get what i mean). the blades where hand made with C/F reinforcements, 8x 600mha AAA. picostick motor and gear box.
flying wise, the hardest thing was to get the thing off the ground. once in the air it became the biggest pile of s*** i have ever flown. i think a man hole cover would of done better. if i do another one i wont do it with a live head just with conventional tail feathers.

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11-01-2004 09:07 PM  13 years agoPost 9
blighty

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uk

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hingus2000

thay go for £6.00 p+p inc ( uk)
haven't worked out a price for the US (post)

there not in the shops. i was trying to set up a little business called N F Upgrades. the bit's where for the pic pro. cnc ali heads, shaft collers, C/F chassis, DD prop adaptor. but in the end i decided the pic pro was crap and stop wasting my time on it.
i did have some dealings with a shop in the uk for the prop adaptor but the owners had a bust up one day and the ahop closed down. 'O'well.
s*** happens.

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11-02-2004 12:26 AM  13 years agoPost 10
alanhsu

rrKey Veteran

Vancouver, Canada

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Is that thing for mounting the stock 3020 props that came with the DD motor?

Did you guys try out the 3020 prop?

You can push the 3020 all the way in on the shaft and it stays on tight.

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11-02-2004 11:20 AM  13 years agoPost 11
pigs dont fly

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City, State - Country

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Hi there, I just drill out the hole in the prop so its a push fit, then push it on with a blob of CA, havent had any come off yet.
I like the mount though.
E

Warning...This hobby is very addictive and may damage your wealth

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11-02-2004 01:33 PM  13 years agoPost 12
RC-Hawk

rrApprentice

Westminster Colorado

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Just to clear things up. I use the 3020 prop on the DD motor, never had one come off (without thumpin the ground first), until I tried to fly when it was 28 deg outside.
Tried 3 different props during that time and they all came off. I would rather get something a little more secure in my mind than a "push fit".
If I could ge tmy hands on one of these, I think I'd buy it in a minute.
If I had access to a lathe, I would make one.
Peace of mind is everything... (or is that piece?? )

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11-02-2004 03:00 PM  13 years agoPost 13
1500valk

rrNovice

Northeast Indiana

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It would seem to me that you would not need a lathe to make one. How about a piece of "tappable" aluminum tubing? This is different than the normal aluminum tube with the thin walls. This type has thick walls and can take to making threads in it. I would think just cross-drill a hole and tap for a set screw and tap threads lengthwise for the screw. I would prefer to buy one ready-made, though, since my thread tapping skills kind of stink. But if you are good at it, go for it!
Also, I found on here that someone said that if you boil the prop for a few seconds it will slip right on and lock on when it cools. To take this a bit further, how about a bit of "buffing" compound on the shaft to make it "bite" into the prop better after it cools down? I don't know, my LHS is out of 3020 props (on backorder) so my bird is down for a while.

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11-02-2004 06:31 PM  13 years agoPost 14
blighty

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uk

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i worked out the price in US dollors $12.00 p+p inc or two for $20.00
that is a direct convertion from £ to $.

if you interested pm me


thx

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11-02-2004 07:14 PM  13 years agoPost 15
Jay C

rrNovice

Memphis, TN

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What about a prop saver type of adapter? Similar to a wobbly prop adapter only smaller. This is what I used here

The one shown in this thread is very simple. I have some 1/8" aluminum rod I can drill and tap and then cross drill and tap. I could do it for way less than $6 One caveot. The smallest tap I own is a 4-40 .... unless I get a large enough number of requests.

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11-02-2004 07:36 PM  13 years agoPost 16
blighty

rrApprentice

uk

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if that comes with 2 alan key's, 2 grubs, the adaptor, 2x12mm cap head and thay run true and not shake my heli to pieces i'll by them from you. cos' there a pain in the a** to make.

mine cost £6.00 ($11.00) cos' as i live in rip of britain just the two 2x3mm grubs cost £1.20 ($2.10)
yes if i made 1000's of them thay would be a lot cheaper.( like that's going to happen)

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11-02-2004 08:40 PM  13 years agoPost 17
hingus2000

rrKey Veteran

West Midlands UK Posts: 75069

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hi

how do you get the prop onto this adapter? you will have to bore a bigger whole surely? so therefore what advantages does it provide instead of just boring a whole the right size for the actual motor shaft?

Tom

T-Rex SA, Anodized Head, Gy240, 3s TP 2100mah, Align 35A ESC, 430L Motor

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11-02-2004 08:46 PM  13 years agoPost 18
Jay C

rrNovice

Memphis, TN

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I would use screws not grubs ... and let the rubber band hold the prop on, while the adapter part held the prop centered. I'm not a manufacturer ... it would be a pain for me too I humbly withdraw my offer. However, I may make 1 to see if I like it or not. Though as you can see, I use a CDROM BL tail.

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11-02-2004 09:02 PM  13 years agoPost 19
blighty

rrApprentice

uk

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how ever you put the prop on you will have plastic to metal which is not good. if you push the prop on with a G clamp or vice you can split the prop or damage the motor. if you glue it on it will come off and once it's come off you mite as well bin it.

this way the adaptor is held on the motor by two grub's and the prop is held to the adaptor by a 2x12mm cap head.


it is know that thay can come off when there pushed or glued on. don't know anyone that has lost a prop doing this way.

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11-07-2004 02:58 AM  13 years agoPost 20
willie evans

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Alberta, Canada

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over one year old.

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Century Radikal E640 - Swift 16 NX
› Here's one I bet you've not heard yet.
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