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DarkButterfly:
18 Aug 2019 19:13:57
Had another negative encounter, it's been a few years since the last one, just an uneducated ******, going on about drones being illegal yada yada yada.    :-/
Still that didn't spoil my flying time, had an absolute blast  ~~
Gaza07:
07 Aug 2019 19:52:01
ooooh mrs jones  :D
hoverfly:
30 Jul 2019 15:26:34
D.B. you tightwad.. :cool:
atomiclama:
29 Jul 2019 20:14:10
DB that just means you have shed loads of props in the first place ;-)
DarkButterfly:
29 Jul 2019 18:53:33
Just had a thought, even with all the crashing I've done, I haven't bought any replacement props in over a year ~~
ched:
09 Jul 2019 19:45:42
May the sun shine and winds be light for BFU#8. Son't forget lots of vids for those of us unable to attend.  :D
Gaza07:
09 Jul 2019 18:10:30
Hope you all have a great day  :beer2:
Andy7:
09 Jul 2019 14:05:28
BFU#8 details locked in for this saturday - see the head of the forum thread for all details.
hoverfly:
05 Jul 2019 21:51:05
Good for genital warts as well......or so I'm told.. :hmm
DarkButterfly:
05 Jul 2019 21:48:24
Just fixed a busted SMA connector on my TBS unity pigtail, it suffered badly in a recent crash and split in two, nothing a touch of the soldering iron couldn't fix  :D
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3d - Printworx

Printing 3d Forum

Newbie balancing Gemfan props question

Started by Desmoboy, Monday,August 12, 2013, 09:35:36

Previous topic - Next topic

Desmoboy

Hi Guys
While waiting for bits to arrive i have been learning how to balance my props.

Its quite easy to get them to come to rest exactly horizontal every time but that does not seem random enough to be perfectly balanced to me. Am i missing something ?

Should they stop at any position and in a different place each time and does what i have seen actually indicate a heavy hub or something.

Gemfan 11 X 4.7 by the way.

Regards
keith

philtrum

sounds like a heavy hub mate

hold prop vertical, if it goes to horizontal, add some weight to the hub on the top, until it stops doing it

I use CA and some kicker to make it set quick, but practice with tape first till you get the idea

Phil
Many Thanks
Phil
www.makeitbuildit.co.uk

Desmoboy

Thanks dude, thought it might be something along those lines.

philtrum

Quote from: Desmoboy on Monday,August 12, 2013, 11:45:30
Thanks dude, thought it might be something along those lines.


No worries,  it makes a huge difference when done :)
Many Thanks
Phil
www.makeitbuildit.co.uk

Desmoboy

Had a go at adding a little weight with superglue to the light side and removing a little more from the heavy side.

I still cant get the prop to come to rest randomly. The final motion is very slow and gentle so i think its close before it comes to rest but its always still in exactly the same place. I don';t want to take too much material off around the hub and weaken it and having no previous experience of this i haven';t a real clue where that limit is.

rsmith21

What kind of balancer are you using. You could experiment by adding play doe or other similar removable material, you will soon see if your doing the right thing.
KK2, NAZA M/V2 ugrade, Spektrum DX 8, Hubsan X4
Immersion 25Mw vtx, GoPro 4, Black Pearl Display
Walkera 2 axis gimbal

Desmoboy

I bought a du bro499, arrived in less than 24 hours as well !

rsmith21

KK2, NAZA M/V2 ugrade, Spektrum DX 8, Hubsan X4
Immersion 25Mw vtx, GoPro 4, Black Pearl Display
Walkera 2 axis gimbal

Desmoboy

So, i now have a better balanced prop with a blob of blu tac on the light side.

Anyone have a good plan for how i either weigh the blue tac ! or translate its weight into araldite ?

Otherwise i haven';t actually achieved very much

philtrum

I use superglue and a spray to set it quick, works a treat
and as it sets almost instantly,you can build layers to get the weight right

Phil
Many Thanks
Phil
www.makeitbuildit.co.uk

Desmoboy

The blob of blu tac i have is the size of a pea, it';s going to take a lot of superglue to equal that.

Is this really the method people use ?

rsmith21

Tuesday,August 20, 2013, 08:54:33 #11 Last Edit: Tuesday,August 20, 2013, 11:35:08 by rsmith21
None of my props have been so bad that they required anymore than a few small bits of aluminium tape on one blade, or a light sanding to get them right, so I cant advise how you should manage that one, sorry.

It would look like others have had problems getting them right too,  http://www.rcgroups.com/forums/showthread.php?t=1590567
KK2, NAZA M/V2 ugrade, Spektrum DX 8, Hubsan X4
Immersion 25Mw vtx, GoPro 4, Black Pearl Display
Walkera 2 axis gimbal