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Balance your flywheels!


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#1 0reo

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Posted 08 February 2013 - 06:39 PM

I don't have time to do a full write-up right now but I wanted to post a link for you guys to browse ahead of time. I'd love it if one of you guys tried this before I got around to it and saved me the work of having to figure it out. This is a link to a thread over on RCGroups forum about how to balance electric ducted fans using a smart phone. It is directly applicable to the flywheel nerf blasters as well.

http://www.rcgroups....d.php?t=1267814

Now, a few years ago I bought a fairly expensive tool to balance my EDFs that uses a kind of strobe light and pressure sensors. I haven't gotten around to trying that out yet either.

What I can say for certain is that most of the volume increase you guys are experiencing when over-volting or upgrading motors is only indirectly a result of the higher rpm. It's directly a result of those flywheels being ever so slightly out of balance. It should sound smooth like a jet engine, not like a buzz-saw the way it does in Coop's latest videos. More then that though, I would expect a modest increase in performance both in terms of top dart speed and in post-shot flywheel rpm recovery time.

Please, someone do this and document it so I don't have to. Pretty please.

Edited by 0reo, 08 February 2013 - 06:41 PM.

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#2 Langley

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Posted 09 February 2013 - 12:37 PM

I don't have time to do a full write-up right now but I wanted to post a link for you guys to browse ahead of time. I'd love it if one of you guys tried this before I got around to it and saved me the work of having to figure it out.


Normally we would require a full writeup here, because we don't allow idea threads. 99 times out of 100 the idea is half-assed and incomplete because it hasn't stood up to testing, or suffers from some other obvious fatal flaw. Posting ideas with the expectation that other people will try them for you is an attitude that we don't want to foster here. However, since the link you posted has some pretty high quality content that is applicable to nerf, I'm not going to throw a fit about it. But you are probably the person best suited to testing this method, and if you really think it's worthwhile you should just test it yourself.
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You can poop in my toilet anytime champ.

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#3 0reo

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Posted 09 February 2013 - 02:04 PM

Thanks for the support Langley.

I made the OP with the intention of following up within a short period of time.

Edited by 0reo, 09 February 2013 - 06:47 PM.

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