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Old 05-25-2017, 02:13 PM   #1 (permalink)
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Default SOLVED: Upgraded to 770 and Leggero, now terrible vibrations!

Hi All,

I upgraded to Leggero, I changed boom etc to 770, put on a SAB 770 blade, changed the dampers to hard.

Now I did a test hover and there was really bad vibration on high speed.

I put on the new main shaft that came with the leggero kit, bent?

Hard dampers?

The blades looks to be balanced!

Any suggestion before I spent the night on tacking the issue?

/N

Last edited by niccco; 05-25-2017 at 02:36 PM..
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Old 05-25-2017, 02:38 PM   #2 (permalink)
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Do not rush to much! You need to put back all screws!

If you donīt pun the the screws to the bottom bearing block, you will have vibrations!

/N
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Old 05-25-2017, 03:50 PM   #3 (permalink)
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.

Glad you found the problem

.
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Old 05-25-2017, 05:57 PM   #4 (permalink)
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I get some canopy vibration with my 770, but it has very few flights on it. I may just need to break in the dampers some more.
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Old 05-26-2017, 12:06 AM   #5 (permalink)
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Flying buddy had a bad vibe at low speed (1700). Backed off the blade screws half a turn and it cleared up. Low HS wasn't straightening out the blades.

I know you said high HS. Just info for someone else that might be having vibe issues.
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Old 05-26-2017, 03:26 PM   #6 (permalink)
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Just to report back. I upgraded my Protos Max V2 to Leggero and upgraded to 770 blade, larger motor (Align 850 MX) at the same time.

I am really happy with this conversion! I run low head speed (1400 or so) but just lower the % in the ECS (Hobbywing 160A), I run a 20t pinion, 490kv motor, 12S, I will try the 18t later on. But I am really happy so far.

I am not a smack 3D flyer, so this is perfect for me, super quite, just fly around in eights, rolls, flips, super fun!

/N
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