EDF Dynamic rotor balancing - Page 7 - RC Groups
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Sep 18, 2010, 11:17 PM
Registered User
Nah, just mark the components before removal so that you can realign everything during reassembly.
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Nov 04, 2010, 11:56 PM
1ONkar, Satnaam
1satnaam's Avatar

OK I have made the plunge and bought one.


Now to see how this unit works, I am a bit confused, but let's see if I can make this work.
satnaam
Nov 07, 2010, 07:05 PM
Lots foam, so little time
Depron Dave's Avatar
I have one and the price is negligible next to the frustration of an unbalanced impeller.
IMO
Nov 08, 2010, 12:36 AM
Got Another Prop?
WadesRC's Avatar
Quote:
Originally Posted by Depron Dave
I have one and the price is negligible next to the frustration of an unbalanced impeller.
IMO
You have one "What" for sale?
Nov 25, 2010, 06:04 AM
Registered User
Bob Blackburn's Avatar
There is a completely new manual on the website for the Ducted Fan Balancers as well as the older manual

http://www.bobsworkshop.co.uk/outdoo...d-fan-balancer
Nov 25, 2010, 06:14 AM
ancora imparo
jj604's Avatar
Bob, you might want to check the 18 Nov version. It seems to be corrupt (the new one is fine).

Thanks, John

Quote:
Originally Posted by Bob Blackburn
There is a completely new manual on the website for the Ducted Fan Balancers as well as the older manual

http://www.bobsworkshop.co.uk/outdoo...d-fan-balancer
Nov 25, 2010, 06:28 AM
Registered User
Bob Blackburn's Avatar
Sorry about that, Thanks for letting me know
Both manuals now download correctly

http://www.bobsworkshop.co.uk/outdoo...d-fan-balancer
Nov 25, 2010, 07:02 AM
ancora imparo
jj604's Avatar
Confirmed.
Quote:
Originally Posted by Bob Blackburn
Sorry about that, Thanks for letting me know
Both manuals now download correctly

http://www.bobsworkshop.co.uk/outdoo...d-fan-balancer
Dec 01, 2010, 03:27 PM
Registered User

hello from canada


Quote:
Originally Posted by The Don
Thought I would post a photo or two of my latest toy. It is a dynamic rotor balancer from Bob Blackburn.

http://www.bobsworkshop.co.uk/outdoo...d-fan-balancer

I ordered it less than two weeks ago, Bob emailed right away and said it would take a week before it would ship (I assume he builds them to order) and one week later I got an email saying it was shipped! Took about 5 days to arrive from the UK, and when the postman handed a box to me today I knew exactly what it was.

I had to try it out right away so I downloaded and printed a copy of the manual from his website then grabbed a fan unit, ESC, and lipo. He says to run low rpm so I used a 2S lipo to make life easy. After about 30 minutes I had my first fan balanced. Most of that time was learning what to do. But this unit is great as it tells you where to place the weight, the only thing you have to do is figure out how much weight, and that is where the trial and error comes in. Balancing was something I always hated to do as you are guessing both the spot and weight amount. Knowing the location is 90% of the battle, then adding and subtracting weight is not that hard.

The fan I balanced was a 64mm 5 blade EDO fan like that is in many of the stock ARF EDFs that are sold these days. I have flown this fan unit before and I was amazed to see how out of balance it actually was. The photo shows the tape I applied and now it runs like a top. I am quite impressed with this unit and highly recommend it. The total cost was about $230 shipped from the UK which may seem high but in reality the amount of money we spend on our EDF models it is not a large cost at all. Not to mention the time you will save balancing your rotors. I expect that a fan can be done in about 5 minutes once you are use to the process. I know I have spent a LOT or time and frustration trying to balance a fan and to me this unit is worth every penny!

I will post photos the next time a balance a rotor you can all see it in action.
hi Don I have 2 new hyperflo edf's sitting here I would like to order a couple of motors I am lookin to get max thrust on a 3 or 4 cell so am I looking at the 4800 on a 4 or the 5600extreme on a 3 thanks a lot gary
Dec 01, 2010, 03:29 PM
Registered User
hello don i have 2 hyperflo edf;s sitting new on the shelf to grt max thrust would i order the 4800 and use a 4 cell or the 5600extreme on 3 cells thanks gary
Dec 01, 2010, 04:39 PM
Indoor Free Flight Modeler
Quote:
Originally Posted by the big g
hi Don I have 2 new hyperflo edf's sitting here I would like to order a couple of motors I am lookin to get max thrust on a 3 or 4 cell so am I looking at the 4800 on a 4 or the 5600extreme on a 3 thanks a lot gary
For 3S the wicked 5400 and 4S the 4800.
Dec 01, 2010, 11:51 PM
Eight Six Hotel Juliet
18DFlyr's Avatar
Bob / Don,

Would this balancer work with 30mm fans?
Dec 02, 2010, 09:19 AM
Registered User
Bob Blackburn's Avatar
Quote:
Originally Posted by 18DFlyr
Bob / Don,

Would this balancer work with 30mm fans?
18DFyr

I will pop one on to a balancer when I have time (need to make a lighter beam for it first)
I do expect it to show any imbalance.
I am curious as to how much of a challenge adding small enough weights will be.
Dec 03, 2010, 12:57 AM
Eight Six Hotel Juliet
18DFlyr's Avatar
Quote:
Originally Posted by Bob Blackburn
18DFyr

I will pop one on to a balancer when I have time (need to make a lighter beam for it first)
I do expect it to show any imbalance.
I am curious as to how much of a challenge adding small enough weights will be.
Bob,

Thanks! I am very interested to know if this will work.

Bill
Dec 03, 2010, 07:09 AM
ancora imparo
jj604's Avatar
Me too. Bob when you are done, would appreciate any info on the lighter beam. Be interested to make one up for my balancer.

John
Quote:
Originally Posted by 18DFlyr
Bob,

Thanks! I am very interested to know if this will work.

Bill


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