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Zoom › Can a digital scales be used to check blade balance?
03-30-2005 01:45 PM  13 years agoPost 1
waynekinney

rrNovice

Brighton, UK

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Hi,
I was wondering if i could use a digital scales such as here http://cgi.ebay.co.uk/ws/eBayISAPI....5760073066&rd=1

to make sure that my blades are of equal weight. It says that these scales are accurate to within 0.1gram

Just thought that if it can be used it would be good for balancing paddles and such also?

Cheers, Wayne.

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03-30-2005 06:01 PM  13 years agoPost 2
DangerousDick

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Cheshire, England

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Useful - Yes but you still have to do the rest of the 'balancing act' and you could really do with a calibration down to .01g for this light stuff.

Blades with different weights / C of G's can be 'balanced' on the head and look OK but as soon as they're spooled up cause a lot of vibration so starting with two blades the same weight makes the rest of the procedure much more accurate.

Get the same weight of blades with the same C of G and they should be balanced on the head also.

Cheers
Richard.

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03-30-2005 06:58 PM  13 years agoPost 3
waynekinney

rrNovice

Brighton, UK

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Hey DangerousDick (interesting name),

Yeah i kinda meant using the scales to aid in the rest of the process of balancing and not a complete replacement. I think it would be usefull to use the scales to keep on checking that the blades are the same weight throughout the process. Like each time you make an adjustment, re check the weights or something.

Also as you say, an accuracy of 0.1g would be good, as a small difference in weight can have a big effect on these small/light heli's over their big brothers.

I think ill probably purschase one to give it a go.

I was wondering just how 'detailed' you could go with balancing, like taking the whole head apart to its bare bits, and comparing the weight of each sides blade holder, paddles washout mixers etc. or would this just be a waste of time?

Cheers,
Wayne.

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03-31-2005 07:09 AM  13 years agoPost 4
Rob_T

rrElite Veteran

..

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I picked up a 0-300g scale with 0.01g resolution for about $100. 100g scales seem to be a little cheaper (maybe $60).

Paddles and paddle holders seems to be matched to better than 0.1g straight out of the bag, although its reassuring to know that by weighing them. I found the best improvement in balancing the flybar came when I started using a digital caliper to measure the length on each side. That last 0.01mm seems to make a difference!

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