Prop Balancing !

[Bigvern]

Got these propeller balancing rods back from the machine shop yesterday ! Cost was quite high because I only wanted 3 made to see what they would be like. But have spoken to them today and if anyone is interested in purchasing one, I can order a lot larger quantity I would be able to sell them for £13 each + postage which would be a genunie postage cost. (don't know price at this time)
They are made of stainless steal left hand thread one end right hand the other marked black one end for the black prop silver the other.
Any interest please email me at [email protected]
Thanks.
Glen.

 

[OI Photography]

Brilliant. You win.

Market these to every Phantom owner's group you can find, and you'll have your hands full with orders.

 

[pileosnafu]

I don't think the photos posted right.

Also I read that it wasn't necessary to balance these props? Was that incorrect?

 

[OI Photography]

I don't think the photos posted right.

Also I read that it wasn't necessary to balance these props? Was that incorrect?

I've seen them advertised as pre-balanced, but all 4 of the (official) ones I ordered needed at least a little adjustment.

 

[garygid]

What is considered to be the best method of removing material (weight)
from the heavy side of the propeller?

Static balance is a start, but dynamic balancing would be better?

 

[garygid]

What is the thread size, perhaps 6mm x 1mm pitch?

A left-handed die only costs about $10, so this could be a
DIY project if there is no reasonable (including shipping)
source.

Getting the right straight, smooth "rails" for the rod to
roll on is the second part of the assembly.

When sanding a propeller to balance it, presumably one wants to
avoid the leading and trailing edges, and also avoid roughening
the "airfoil" surfaces, which could create substantial drag at
higher revolution rates. So, where to remove material?

 

[garygid]

This looks like a good rod suspension device:
http://www.helipal.com/propeller-balancer.html
$13 plus $6 shipping from this source.

 

[OI Photography]

This looks like a good rod suspension device:
http://www.helipal.com/propeller-balancer.html
$13 plus $6 shipping from this source.

Nope, I have that one, it's small and not worth a darn. The space between the sides is less than 4". This is widely regarded as one of the best options for this type of prop balancing (I bought it and I love it):

http://hobby.dubro.com/videos/tech-tip- ... ancer-1_17
http://www.horizonhobby.com/products/tr ... cer-DUB499

 

[garygid]

Or, this version for $7.05
http://www.ebay.com/itm/380777430546

 

[garygid]

Will the P2V prop's center hole fit and center properly on these?

If not, making a new shaft, pointed on both ends, and threaded halfway right-handed
and halfway left-handed should work properly.

I have ordered some to try out, in case nobody else has already tried.

 

[Driffill]

Or, this version for $7.05
http://www.ebay.com/itm/380777430546

I have one of those somewhere, they are tiny! . .
If you really want it, pay postage and you can have mine . ..


It's ****

 

[garygid]

Horse exhaust!
Too late, I just ordered some.

Well, what makes it unsuitable for practical use, please?

 

[Bigvern]

Hello

Thanks for your interest in the prop balancing rods.

I have today spoken to the guy that owns the machine shop & put in an order
for 50 to be made! Not really enough for me to make a substantial profit but
this is not a business I'm running.

Because of the holidays at this time of year he said the order would be
completed on 10/01/14

If this is OK with everyone I would be able to work out post and packaging
costs on 11/01/14 and post on the 13th I will email each of you with total
cost on the 12th then when payment is received I will post.

Seems a little dragged out but that is because of the holidays.

Hope you are happy with this arrangement.

Kind regards

Glen.
(20 orders thanks)

 

[rmklaw]

I will take one also.

 

[OI Photography]

I will take one also.

Ditto

 

[fizzviic]

I'm in as well.

 

[garygid]

Beginner Realization:
All of the standard balancer mechanisms rely upon passing a shaft
through the hub of the propeller...
and the propellers for the P2V have a capped hole, so a shaft to support
the prop for balancing must enter from one end only.

So, the ones that I ordered will be useless. Doh!

 

[Super-D]

Beginner Realization:
All of the standard balancer mechanisms rely upon passing a shaft
through the hub of the propeller...
and the propellers for the P2V have a capped hole, so a shaft to support
the prop for balancing must enter from one end only.

So, the ones that I ordered will be useless. Doh!

Not sure what prop balancing device you are using but there is a YouTube video of a guy who shows you how to get around that using the Dubro prop balancer.

http://www.youtube.com/watch?v=eVdVa0jWowI

 

[Pull_Up]

Sorry to resurrect an older thread, but thought it might be interesting for those who missed it the first time round or have already put an order in...

Glen kindly sent me one of his production prototypes to have a look at. I was very happy with the quality but I also wanted to see if there was a way for the non-RC old timers to have a go at balancing their props without having to buy the undoubtedly excellent Dubro (after all, we all need to save up for batteries!). As I didn't own a prop balancer I thought I would be a good guinea pig.

I accepted Glen's kindness on the understanding that I would review it as I found it and not sugar-coat any issues I had with it, so here's what I think of the balancing rods and my attempts at seeing if newbies can have a go at this balancing lark without investing in anything other than Glen's engineering..

[youtube]http://www.youtube.com/watch?v=AxXGC74M5cY[/youtube]

 

[pinfish]

what size are the threads on the props? Thanks