McKrackin
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Flippin' the bird!
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Post by McKrackin on Oct 11, 2009 13:02:39 GMT -6
Did you have the throttle trim all the way down when you bound it?
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Post by Solitaire on Oct 11, 2009 17:24:18 GMT -6
Yep, but I will re-bind it anyway.
I know throttle limits have to be set with brushless ESC's, but I wasn't sure about this little guy.
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akent
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Post by akent on Oct 11, 2009 21:07:49 GMT -6
Actually, mine was too sensitive to low throttle, so I had to put in some expo on the throttle!
It would hit the throttle minimums and it would spin the heli on spoolup. So, I reduced all of that, so now when I hit low throttle, I can spin up with the heli on a 2x4 board and it is smooth!
Kent
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Post by Solitaire on Oct 11, 2009 22:23:28 GMT -6
Yep, Kent, that's what I've found as well. Lots of low end throttle. I just set a throttle curve to counter. I guess I was expecting a liftoff point closer to 60% rather than 75%, but maybe that's the nature of the beast. Everything else seems fine so far. These things are so quiet.  |
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McKrackin
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Flippin' the bird!
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Post by McKrackin on Oct 12, 2009 14:55:06 GMT -6
Mine lifts off at 50%  |
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akent
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Post by akent on Oct 12, 2009 15:57:05 GMT -6
I just flew mine again (never paid attention to the stick position) and it hovers at the first white mark below mid stick, so I'm probably at 65% or so.
Kent
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Post by Solitaire on Oct 16, 2009 19:13:18 GMT -6
Very odd. 3/4 throttle to lift off and basic hover sits around 60%. Only getting 6 or 7 minutes out of a 130mAh LiPo before the blue light flashes. There's some more aggressive blades coming out. Maybe those will be the answer.  |
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akent
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Post by akent on Oct 16, 2009 20:21:45 GMT -6
Very odd. 3/4 throttle to lift off and basic hover sits around 60%. Only getting 6 or 7 minutes out of a 130mAh LiPo before the blue light flashes. There's some more aggressive blades coming out. Maybe those will be the answer. Yep, I get a little less than 7 minutes before the LV kicks in. I have the timer set to 6 minutes and I have no problems with that, with the 120ma stock batteries. I'm at 65% at hover, so yeah, higher than that when lifting off and getting going with FFF. With mine, there is no lack of power. One thing I can say is don't try a loop at too low an altitude! I tried one with full bore everything from about 20 feet up. Pulled up, but a bit too late. BOOM into the ground at full bore. It actually crumpled this time with main blades flying off of the heli and the canopy ripped off and laying on the ground. Broken items: 1. Blade holders That's it!!!!!!!!!!!!!!!!! 4 bucks. Holy crap! And the canopy is just barely scraped up! Wow! Kent Amazing. |
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McKrackin
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Post by McKrackin on Oct 17, 2009 17:25:50 GMT -6
No damage to mine yet but the guy I got it from sent me extra blade grips so I know that won't be the first thing to break.lol...
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akent
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Post by akent on Oct 17, 2009 18:39:34 GMT -6
I hear ya, Mckrackin!
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McKrackin
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Post by McKrackin on Oct 17, 2009 19:49:07 GMT -6
I wonder if RTF is going to do a BL mod for the MSR?
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akent
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Post by akent on Oct 17, 2009 21:41:56 GMT -6
These are coreless motors, but I don't know what that means.
Do you?
My MCX has a million flights on it's coreless motors and that thing flies the same as when it was new.
The MSR now has a few dozen or thousands of flights on it and it's still the same...
I don't know what 'coreless' means.
Oh and the 'coreless' servos that I have are still perfect on bigger helis....
Ugh. Me know nothing about that.
Kent
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Post by Solitaire on Oct 17, 2009 23:08:54 GMT -6
OK, so you made me look it up. " In small motors, an alternative design is often used which features a 'coreless' armature winding. This design depends upon the coil wire itself for structural integrity. As a result, the armature is hollow, and the permanent magnet can be mounted inside the rotor coil. Coreless DC motors have much lower armature inductance than iron-core motors of comparable size, extending brush and commutator life.
The coreless design also allows manufacturers to build smaller motors; meanwhile, due to the lack of iron in their rotors, coreless motors are somewhat prone to overheating. As a result, this design is generally used just in small, low-power motors." From this site... www.solarbotics.net/starting/200111_dcmotor/200111_dcmotor2.html |
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McKrackin
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Post by McKrackin on Oct 21, 2009 23:33:03 GMT -6
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19000rpm
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Post by 19000rpm on Oct 22, 2009 6:10:12 GMT -6
I've had my mCX for well over a year now and it still flies like it's new.
They must have done away with the "planned obsolescence" department at HH because now the mSR seems to be more durable than dirt too. ;D
Happy landings
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