power issues with mwc - RC Groups
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Jul 20, 2012, 06:27 PM
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anotherdebt's Avatar

power issues with mwc

Hey all,
I am hoping someone can shed some light on what's going on with my newly assembled quad.

First of all it is a x650 RM version with 30 amp esc's and 880kv motors. I am using a mulitwii board from another quad that I had along with a spectrum rx.

So here is the issue, I calibrated all of the esc's individually and they all seem okay and in sync I guess. The problem is that when I give full throttle it doesn't seem to really take off. It is a slow lazy ascent. My tax settings are set to what several people have posted in a few forums so I am pretty sure its not there but I won't rule anything out at this time. Also I am using a 3s 2250 mAh lipo.

Let me know what you think...

Thank you
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Jul 20, 2012, 07:16 PM
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Mortimer's Avatar
Maybe bad vibrations ?
Are arms rigid and props balanced ?
Jul 20, 2012, 08:24 PM
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anotherdebt's Avatar
Brand new carbon props and they have not been ballenced, the arms are carbon so there is some movement of arms not necessarily vibration
Jul 20, 2012, 09:59 PM
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vineet_p's Avatar
Try to increase the maxthrottle in your multiwii's arduino sketches (I don't remember if it's in config.h or def.h). The default is 1800 you can inc it upto 2000. Also try to increase tge RC rate in the GUI (by a small amount only! ~0.1) This will make your quad responsive.

Jul 21, 2012, 08:51 AM
Registered User
anotherdebt's Avatar
Thanks I will try both of those adjustments and I will try to balance my props as well and see If I get any results. I will let you all know...
Thank you again

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