New K&S blade balancer problem?
#1
Hi all,
Went to the LHS earlier, and picked up a K&S rotor blade balancer, figuring if I'm gonna get into the hobby, I might as well have the correct tools...I know balancing the blades can be done with stuff from the hardware store, but I had some money burning a hole in my pocket....
Anyways, I got it home, went to set it all up (the thing is very cool, nice ball bearings, hardware, made in Japan...), and the pins that they give you are WAY too big for Eflite rotor blades, the smallest pin is 3MM, and the hole in the blade root is probably half that size. I was wondering if anyone has run into this? I really like the balancer, and would like to use/keep it for sure.
I imagine if I go to the LHS and look at the DuBro hardware, I may be able to find a small bolt that is the same size (I'm guessing it's like 1. 5 MM?) as the Eflite rotor blade bolt, but longer, and fashion some kind of an adaptor to fit it to the balancer...
Just wondering if anyone else has come across this? Worst case, I guess I'll have to take it back, but I sure do like it!
Glenn
Went to the LHS earlier, and picked up a K&S rotor blade balancer, figuring if I'm gonna get into the hobby, I might as well have the correct tools...I know balancing the blades can be done with stuff from the hardware store, but I had some money burning a hole in my pocket....
Anyways, I got it home, went to set it all up (the thing is very cool, nice ball bearings, hardware, made in Japan...), and the pins that they give you are WAY too big for Eflite rotor blades, the smallest pin is 3MM, and the hole in the blade root is probably half that size. I was wondering if anyone has run into this? I really like the balancer, and would like to use/keep it for sure.
I imagine if I go to the LHS and look at the DuBro hardware, I may be able to find a small bolt that is the same size (I'm guessing it's like 1. 5 MM?) as the Eflite rotor blade bolt, but longer, and fashion some kind of an adaptor to fit it to the balancer...
Just wondering if anyone else has come across this? Worst case, I guess I'll have to take it back, but I sure do like it!
Glenn
#2
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From: GARDEN CITY,
KS
I, too have the K&S balancer, cause I wanted the best!
It works fine on the T-REX 450 and larger helis, and for the blade; yea; You might have to make something that will go into one of the holes without any slop, but grind down to slip the blade through it.
I seldom have to adjust the blade tracking after using this tool!
You will LOVE IT! !
Gary
It works fine on the T-REX 450 and larger helis, and for the blade; yea; You might have to make something that will go into one of the holes without any slop, but grind down to slip the blade through it.
I seldom have to adjust the blade tracking after using this tool!
You will LOVE IT! !
Gary
#3
Hey Gary,
Thanks for the post and ideas. I do love it, and wanted to make it work for the blade. I did roughly what you suggested, I got a 3/16 dowel rod, and sanded it down so that the rod fit very snugly in the swingarm holes. Then, I cut them to length, and wedged them into the holes. I then took a 1/16 drill bit, and made a hole in each one, and used the stock CP Pro rotor blade screws, and it works fine like that. I would like to have some screws a bit longer, I''ll have to look around. I think they are 2 MM, but I can''t find any long enough. It works like it is, but it could be a little better with longer screws.
I balanced my blades yesterday, they came out great, between that and balancing the flybar, it''s really smooth, much improved.
I would recommend the K&S balancer to anyone who would like to make their heli fly smoothly!
Thanks for the input, and ideas!
Glenn
Thanks for the post and ideas. I do love it, and wanted to make it work for the blade. I did roughly what you suggested, I got a 3/16 dowel rod, and sanded it down so that the rod fit very snugly in the swingarm holes. Then, I cut them to length, and wedged them into the holes. I then took a 1/16 drill bit, and made a hole in each one, and used the stock CP Pro rotor blade screws, and it works fine like that. I would like to have some screws a bit longer, I''ll have to look around. I think they are 2 MM, but I can''t find any long enough. It works like it is, but it could be a little better with longer screws.
I balanced my blades yesterday, they came out great, between that and balancing the flybar, it''s really smooth, much improved.
I would recommend the K&S balancer to anyone who would like to make their heli fly smoothly!
Thanks for the input, and ideas!
Glenn
#4
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From: GARDEN CITY,
KS
I bought the K&S Balancer after a couple of books I read couldn''t say enough about it.
It is as close as a Dynamic balancer that We can get.
It ensure not only balance; but equal weight distributed in the correct place on each blade. This ensures a dynamically correct balance when the blades are actually spinning! If You put the blades on a regular balancer AFTER balancing on the K&S, it would say they were out of balance; but they are not!
You can even balance the blades on the chord line (correct term?) (from leading edge to trailing edge) but I haven''t gone that far!
Doesn''t take any longer than a reqular teeter-totter balancer; but FAR more accurate, which is almost mandatory for the 600 size helis; from what I understand.
My 450 has NO vibration and I can read fine print on it, if I dared. Probably overkill for the 450 size; but I''m anal (or very proud of My heli), however You want to look at it. Besides, I have learned to never say never, as now I''m admiring the T-REX 500
Gary
It is as close as a Dynamic balancer that We can get.
It ensure not only balance; but equal weight distributed in the correct place on each blade. This ensures a dynamically correct balance when the blades are actually spinning! If You put the blades on a regular balancer AFTER balancing on the K&S, it would say they were out of balance; but they are not!
You can even balance the blades on the chord line (correct term?) (from leading edge to trailing edge) but I haven''t gone that far!
Doesn''t take any longer than a reqular teeter-totter balancer; but FAR more accurate, which is almost mandatory for the 600 size helis; from what I understand.
My 450 has NO vibration and I can read fine print on it, if I dared. Probably overkill for the 450 size; but I''m anal (or very proud of My heli), however You want to look at it. Besides, I have learned to never say never, as now I''m admiring the T-REX 500

Gary




