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Home✈️Aircraft🚁HelicopterBeginners Corner › first time ever with electric helli need advice
12-23-2010 02:17 AM  9 years ago
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birdsofpray

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Lake Villa IL

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first time ever with electric helli need advice
I just purchased a e-razor 450 Helli and going to plug battery into e.s.c with motor attached for the first time. Kinda nervous that its going to spool up right away. Can I hook it up with out main blades and if it spools up without mains in will it hurt the Helli? I know to have the flight switch in normal hover mode and throttle stick all the way down other than that is there anything i should be aware of? Just before posting this I seen a video on how to turn off the brake on the e.s.c., would I want that off or on and does it effect auto rotation and why?
What goes up must come down, It's how hard and painfully it comes down is what really matters.
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12-23-2010 02:35 AM  9 years ago
fastflyer20

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N. Tonawanda, NY

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To get the ESC figured out, pull out the main shaft and main gear. Now only the motor will turn keeping pets and people safe.

You can run a heli for diagnostics without main or tail blades, but things can still go wrong. Run just the motor and make sure you have these modes:

Throttle Hold - Collective and cyclic work, motor does not rotate.
Always use this mode while ESC is armed until ready to fly.
Normal - Usually a linear or semi-linear curve from 0 to max RPM's
Idle Up - Attempt to hold the head speed (not the motor) at a specific
RPM. If you are just staring, you can wait to set up idle up and just used normal mode for now.

Your heli manual usually has some suggested curves that are a good starting point. I am not familiar with you heli, if the manual lacks info, download an Align Trex 450 SA it is an older model, but the manual is very good.
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12-23-2010 02:42 AM  9 years ago
badastinner

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Wentzville, MO-USA

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Be careful running motor with no load on it...you can over rev the motor and burn it up. I you want to check throttle curves and throttle hold i would just remove all the blade before you plug battery in. then you'll know if you control over the motor speed with your tx. Good luck.
Have fun!
No changes are permanent but...change is.
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12-23-2010 02:56 AM  9 years ago
birdsofpray

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Lake Villa IL

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Thank guys for the advice What goes up must come down, It's how hard and painfully it comes down is what really matters.
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12-30-2010 01:10 AM  9 years ago
Noobyflyer

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Clearwater, FL

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Do you have anyone around you with experience???? even a local RC shop that may have a "Heli Guy"?
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12-30-2010 01:14 AM  9 years ago
budz

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las vegas

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the safest way to check/program an esc is to loosen the bolts that mount the motor to the motor mount and back off the motor so that the pinion disengages with the main gear. do all the stuff you want to do without the possibility of the rotor accidentaly spining. when your done, advance the motor back to engage with the main gear while checking gear meshingteam solo
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12-30-2010 01:50 AM  9 years ago
rexxigpilot

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rexxig2@comcast.net

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No need to remove blades, main shaft or main gear to setup the ESC! Just back the motor pinion off the main and tighten down.
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12-30-2010 02:09 AM  9 years ago
wtvariety

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Charleston wv

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its been said quite a few times just loosen the motor away from the pinion
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12-30-2010 07:34 AM  9 years ago
bustedmp

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Shamokin, PA

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I just finished the build of my swift nx. While not my first elec heli, it is alot bigger than the mx400 I had a few years ago. The mx400 was pretty much plug and play, but the nx was and still is a learning oppertunity. I didn't mesh the pinion with the main ear untim I knew my throttle control worked properly. After that point, if you want to make adjustments to linkages and such, just disconnect the motor from the esc. So far, I like the ease of plugging in a pack instead of dragging out all of the support equipment of the nitro helis I had in the past.The world is yours!
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12-31-2010 06:34 PM  9 years ago
birdsofpray

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Lake Villa IL

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Thanks everyone for your help I removed motor for testing. The cheap esc that came with my bird only has two options brake and timing its a Dynam brand.What goes up must come down, It's how hard and painfully it comes down is what really matters.
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