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Prop ballancer which one to buy.

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christopher small16/07/2016 21:25:57
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I am getting a bit of vibration on my Quanum Nova multi rotor and would like to balance my props,which one is best and easiest to use.

Chris

Steve Hargreaves - Moderator16/07/2016 21:50:17
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I have this one Chris.......most excellent

Biggles' Elder Brother - Moderator16/07/2016 21:52:18
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Yes i use one of those as well. Magnetic mounting is virtually friction free giving a very sensitive balance.

BEB

christopher small16/07/2016 21:58:23
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Thank you both for your help,looks good,should all props be balanced?and do I just sand off the heavy end.

Chris

Percy Verance16/07/2016 22:14:29
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You don't sand any end Chris! You simply apply a small blob of varnish to the back of the lighter blade at the very tip. I use a cotton bud to do this, and I normally use Clearcoat (the fuelporoofer produced by Solarfilm). It dries extremely rapidly.

It isn't good practice to sand, file or cut propellers in any way. You'll find some props are worse than others for not being balanced.

And yes Steve, I use that balancer too...... yes

 

Edited By Percy Verance on 16/07/2016 22:19:24

christopher small16/07/2016 22:24:32
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Hi Percy,I used to sand them but my prop balancer wasn`t much good so they were worse when I finished than they were before.I need some fuel proofer so I can get some clearcoat at the same time as my balancer.

Biggles' Elder Brother - Moderator16/07/2016 22:30:39
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I agree with Percy that its best not to sand - but to add. But it doesn't have to be fuel proofer though!

I use CA! One drop 1/3rd in from the tip then a quick wipe with your finger towards the tip to smear it (definitely quick though - you don't want to end up stuck to it!)

Electric flyers are more likely to have CA than fuel proofer!

BEB

PS You also get the pleasure of peeling the CA off your finger tip that evening!

Edited By Biggles' Elder Brother - Moderator on 16/07/2016 22:31:45

Percy Verance16/07/2016 22:33:56
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Well that's certainly true BEB, but Clearcoat isn't simply fuel proofer. It's often used to seal joints on film coverings, and it prevents film overlaps from lifting over time.......and electric models are often film covered! Again I apply it with a cotton bud. You can do the overlaps/seams on a whole model in just a few minutes.

 

 

Edited By Percy Verance on 16/07/2016 22:48:13

christopher small16/07/2016 23:19:20
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Is Clearcoat applied straight out of the can,my fuel proofer has to be mixed.

Percy Verance16/07/2016 23:21:56
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Yes Christopher, it's applied straight from the tin. You might need the appropriate Clearcoat thinners for brush cleaning, but not if you go the cotton bud route as I do! Don't use it indoors though, because it stinks heavens high.

A small pack of cotton buds is much cheaper than a tin of Clearcoat thinners...........

 

 

Edited By Percy Verance on 16/07/2016 23:28:40

Biggles' Elder Brother - Moderator16/07/2016 23:45:15
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And CA is cheaper still - because you already probably have it! wink 2

BEB

Tim A17/07/2016 05:33:55
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I brought a (cheap) HK magnetic balancer used it until I checked it for true and found the cones were out so after some research brought a Dubro Tru-spin balancer which I have found to be more versatile and of course accurate.

It is capable of balancing props larger than most other balancers i.e. ones in excess of 12inch diameter plus spinners etc. This can be aproblem for magnetic balancers where the clearance between shaft and bed is not great enough.

Link

P.S. Apologies if link does not work but have just changed to Mozilla Firefox so unsure if it worked correctly.

onetenor17/07/2016 05:34:34
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1901 forum posts

A pencil stub sharpened both ends makes a good cheap fingertip balancer

Mike T17/07/2016 13:13:35
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29 photos

I bought a cheap fingertip balancer to make a magnetic balancer with. The balancer shaft turned out to be stainless steel...

I also use the Du-bro "wheel" type, for its capacity and accuracy.

Re sanding/cutting props, well I always 'dress' moulded props by shaving off the moulding flash and cleaning the seam up with wet and dry before balancing. If the prop is only slightly off-balance, I'm happy to use a 10A blade to scrape the rear face of the heavy blade, which I then polish with wet/dry and or Autosol. If it's badly off, then the light blade gets tape or varnish. Wooden blades get the varnish treatment.

Steve Hargreaves - Moderator17/07/2016 18:47:30
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I'm with Mike T here in that I sand the very trailing edge of the heavy blade to make them balance......

That said it probably depends on the prop....as a mainly IC flier my props tend to be a bit thicker & chunkier than a typical electric prop...

MaxG18/07/2016 07:22:46
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Look on YouTube. there are some very good videos there. I found the Horizon Hobby one very good. If I remember rightly it uses the Dubro gadget.

Hth

Maxg

Stuart Z18/07/2016 22:14:41
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389 forum posts

I bought the Great Planes balancer and am very pleased at how sensitive it is. Thoroughly recommended.

christopher small22/07/2016 19:58:50
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I shall have to look on you tube see what there is.Look up the ones recommended on here.

Thanks again

Chris.,

Rosco22/07/2016 22:22:01
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I would highly recommend the Du-bro one. I've used it on my props and my EDF's, and never had a problem.

I use small bits of pvc tape on the back of my props. Before anyone says it....I've never had a piece of tape come off. For my EDF's I use the tape rolled into small 'balls' and then CA to hold it in the hub.

Rosco

Edited By Rosco on 22/07/2016 22:24:26

christopher small22/07/2016 22:41:33
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The Dubro one looks good on you tube,bit pricey though at £39

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