Q: how to balancing a spinner

[Burning Head]

Any bro have a tips for a easy way to balance dubro 3 inc plastic spinner. I got 4 of them and they all are well fix, but still shake 1/32inc at the tip of the spinner...:cool:

[Burning Head]

The shafts is ok and the spinner is brandnew. I dont want to sand the spin base so...any tip:confused:

[wild]

First of all you have to find a Robart Highpoint Balancer (Or make one)


I pretty sure they don't make them anymore


Here is a picture story of how to balance a spinner.


Tools needed:

A High Point balancer (the only way to balance cheap plastic spinners) . Poor quality spinners do not have a center mount. This necessitates the need to do a cantilevered balance.

Dremel tool with burr

Sharpie marker to index the back plate to the cone

How;

Find the heavy spot .
Mark it (x).
Grind on both sides of the heavy spot (o)
re-check, repeat

A balanced spinner will stop at any point 360 degrees (just as a prop will). If it repeat a location it is not balanced. (FYI; a prop that always stops with the blades horizontal is NOT balanced)
http://i551.photobucket.com/albums/ii455/wildwing0/plastic_cantilevered.jpg


Hank

[Sunfly]

Hi,
You can also sand to make an adhesive spot on the opposite side of the heavy
spot and then put a dab of epoxy there. You can re-check and add epoxy
immediately until perfect balance.
Don't be misslead : the spinner may be out of shape (off center) but still be well balanced. The balancer will tell you the truth.

Also I noticed that the Dubro balancer my lack some sensitivity to balance a spinner due to the small diameter of the spinner itself , you can do it but be very attentive. All I mean is it is more difficult than to balance a prop but it is achievable. Have fun !

See you !

[Sunfly]

Make some marks on both part of the spinner (engrave) to make sure you always put it together the same way: just like it was on the balancer.

Cheers,

[Burning Head]

Thanks Luc for all tip, did you build the spinner balancer your self,:cool: because I try to find one online but did it. merçi

[Burning Head]

Sorry if I mix the reply. Thanks too Hank, yours cantilevered balancer is cool. I will try to make one except if you no a link to a online store:o

[wild]

To build a good balancer is not hard......a couple of small bearing's and some old AOL disk's should do!


Check out this one !

http://i551.photobucket.com/albums/ii455/wildwing0/Tire_Balancer-8.jpg






Hank:)

[Burning Head]

Great one:cool:, but I will try to build the small one for cheap plastic spinner:)

[Sunfly]

No need to build one
Here is the one I use
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXD712
It is probably just the newer version than the one Hank showed you on the first picture.
I am positive the Modelist in Laval can order one for you if not already in stock.

Cheers,

[Sunfly]

To build a good balancer is not hard......a couple of small bearing's and some old AOL disk's should do!

Check out this one !

Hank:)

Hey Hank can you tell us what is an AOL disk ? Anything to do with
America off line :)

[wild]

Hey Hank can you tell us what is an AOL disk ? Anything to do with
America off line :)

Exactly!:D


See they finally come to good use afterall!

:D:D:D


Hank

[Burning Head]

Thanks Luc for the link at THobbys, I will orders one. And the last Q: how get the perfect tilt degre for flap on a flaperon systheme. Is it more or lest of 30degre:confused:

[Burning Head]

Ouin J'etais saoul hier, mais c'est vrais que mon anglais écrit n'est pas bien bon. dorénavent je vais repliquer en français. Je mescuse pour mes propos d'hier. mais en publique seulement:D