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HomeRC & Power✈️Aircraft🚁HelicopterFlybarless Rotor Head SystemsBeastX › and a collective bump?
05-30-2011 05:33 AM  9 years ago
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airplanejunkie

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Riverview, Mi.

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and a collective bump?
For two days now, I have been chasing four to six collective bumps per flight during the hover. Not a full down hit but enough to put it on the ground and right back up to the hover. During the last flight attempt and after initialization, with the motor idling, I watched the collective take two hits before the rotor started turning. These were much harder and longer between moves than on the initialization complete signal. I have removed the engine and checked the fan and clutch balance as well as dial indicated to make sure they are ok. Has anyone else experienced this problem? I believe it may be vibration related but I am not sure how to correct this. Any ideas? Thanks, Dave George AMA 5129
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05-30-2011 06:46 AM  9 years ago
the collective

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Bayside, NY, U.S.A

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I can only think that this is something intermittent that is causing powerloss during flight. I once had a duralite regulator do this to me intermittently for several months before I managed to track it down.

THis sort of thing can be very tough to track down. You might start with the heli on the bench and jiggle or move all the wiring and look for any resulting momentary power loss to the receiver...

Hope you find it soon.
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05-30-2011 10:37 AM  9 years ago
Peterr

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Queensland Australia

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I'd think a power problem in the heli would be more noticable in the tail rather than collective...

Try looking at the Tx monitor screen while moving the coll stick around; heli off for this !!; see if the monitor shows any funnies ..
And I'd set the heli up on a different model memory as well , reckon it's more Tx related than the heli ....
E ,N ,G Whiplash's;Spectra G's;Stratus;E&N Razor,Fury 55;Furion6;TSA 600N, 700N, 700G;; Be
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05-30-2011 10:58 AM  9 years ago
baby_zyklon

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Singapore

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Do you have control of the other channels during those hits?
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05-30-2011 11:20 AM  9 years ago
airplanejunkie

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Riverview, Mi.

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answer to your question
The hit is so quick. No change right or left on the tail rotor or cyclic. I have viewed the servo monitor on the transmitter and seen nothing. Thanks and keep the suggestions comming. Dave
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05-30-2011 01:21 PM  9 years ago
nickwap

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Berwick-upon-Tweed, Northumberland, England

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Don't rule out a faulty unit."Give me another one, this one's broke!"
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05-30-2011 03:08 PM  9 years ago
FloridaHeli

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jacksonville, florida

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Acting funny but no laugh
I've had a few funnies with my MicroBeast the last 2 flights.

First lost tail authority just after take off in a check out hover. Damaged boom and gears in 2 servos. Rebuilt and all checked out OK. Did NOT find anything wrong with the tail on test bench or in test hover. Replaced the DS8311 servos with DS8717.

Next flight lost tail authority then cyclic tilted to the right. The resulting crash damaged the blades and swash to grip linkage. Probably my fault since I did not go thru the BeastX set up with the DS8717's. AND I think the wires to the MicroBeast may have been a little tight.

Would appreciate any photos of MicroBeast on a Trex 600e. Trying to get a better wiring set up. Photos of my set up are below

I'm thinking of downloading the BeastX software and reinstalling in the MicroBeast. Like reinstalling the software on a PC when it starts acting funny.

Any ideas/comments?

This hobby is WAY too expensive!!
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05-30-2011 06:26 PM  9 years ago
airplanejunkie

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Riverview, Mi.

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Your 600 set up
Where is your vibration dampening pad? As light as the construction is on the 600 I would be afraid to mount it directly to the airframe. Put your hand on the components with the engine just idling and you too will become a believer. Thanks, Dave
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05-30-2011 10:32 PM  9 years ago
clive45

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NSW Australia

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Just my opinion..I would not want the BeastX wires coming through the frame especially on a nitro. Too close and too much vibration transmitted to the unit.If it cannot fly on it's own, then I won't be much help....
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05-30-2011 11:59 PM  9 years ago
FloridaHeli

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jacksonville, florida

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airplanejunkie

First let me apologize for jumping in on your thread. Appreciate your comments too.

Vibration dampening pad is 3m weather strip 2 sided foam tape. I've used it for years on Gyros and have read here on RR that it is better than the Beast OEM foam tape. It is working great on my other MicroBeast FBL heli, a Hirobo Lama. However, I'll put that on this list of things to keep in mind.

clive45,
This is not a 600n but a 600e. That means Electric. No piston and less vibration. However, that does not mean vibration is totally absent. But it is less than a nitro powered heli.

Anyone with pictures of their successful installation of a MicroBeast on a Trex 600e? I'd like to change my MicroBeast to Rx wiring route to lessen the stress on the wires as suggested by clive45.

Thanks all for comments and suggestions.
This hobby is WAY too expensive!!
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05-31-2011 12:18 AM  9 years ago
clive45

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NSW Australia

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Sorry FH my bad, did not read enough. SorryIf it cannot fly on it's own, then I won't be much help....
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05-31-2011 01:01 AM  9 years ago
Peterr

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Queensland Australia

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Might be the photo , but the gyro looks to be a few degrees off alignment .. Gyro needs to be accurately aligned with the frames , or you'll get horrible interactions.....

What are you using to power the rx/servos ? Pretty high power servos there , most esc's and bec's won't like that ..
E ,N ,G Whiplash's;Spectra G's;Stratus;E&N Razor,Fury 55;Furion6;TSA 600N, 700N, 700G;; Be
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05-31-2011 03:24 PM  9 years ago
JohnThompson

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Chesapeake, VA

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Hi,
I have seen jumping beastX on 2 ocasions. Both were power related from battery or regulator.
Have you checked for flashing lights on the receiver? It could be going into failsafe.
Have you tried rebinding the receiver?

Try running the regulated power to the sys port on the beast. It will back feed power to the receiver.

Good luck,
John
John
Team HeliDirect,
Team KBDD
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06-01-2011 12:49 AM  9 years ago
FloridaHeli

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jacksonville, florida

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clive45,
No problem. Keep those ideas coming.

Peterr
Did not know that it had to be that accurately aligned. Will do. - Thanks,

Power is from a 2s 5000mAh LiPo thru an Align RCE-B3X External BEC to a Spektrum AR7000 Rx. I could split the output of the BEC and supply power also to the sys port on the MicroBeast unless this is not necessary and just go to the MicroBeast?

skydivejohn,
No blinking lights from the AR7000; power appears to be uninterrupted. I have NOT rebound the Rx recently. Will add that to the list for the re-build.

Thanks all.

ANYONE with photos of MicroBeast mounted in a Trex 600e?
This hobby is WAY too expensive!!
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06-01-2011 01:09 AM  9 years ago
clive45

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NSW Australia

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Have you posted on the beastX site????????????

http://www.beastx.com/forumdisplay....T-%28English%29
If it cannot fly on it's own, then I won't be much help....
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06-01-2011 01:57 AM  9 years ago
FloridaHeli

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jacksonville, florida

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clive45
No. Forgot about it.
Will do.
Thanks,
This hobby is WAY too expensive!!
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06-26-2011 06:18 AM  8 years ago
the collective

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Bayside, NY, U.S.A

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Anyone with pictures of their successful installation of a MicroBeast on a Trex 600e? I'd like to change my MicroBeast to Rx wiring route to lessen the stress on the wires as suggested by clive45.
I was finishing the setup of a BeastX on a friend's 600e today but his transmitter battery got too low. I can get a few pics tomorrow if weather permits.
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06-30-2011 01:17 PM  8 years ago
Zman

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Florida

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Clive45,

Start your heli up and watch the lights on beastx. Give it a couple little revs and see if any lights pop on and off during this time. I had a similar experience to yours and noticed this. A changed in location and/or mounting may solve it if the problem. But check and see.

Z
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06-30-2011 09:56 PM  8 years ago
FloridaHeli

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jacksonville, florida

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Well guys after 2 more crashes and several servo changes I finally found out the problem: the front drive pulley for the tail belt was almost completely worn away. The pin that holds the pulley on the shaft was the only thing making the belt turn. It spooled up like normal but upon take off it would start to pirouette and I'd hit throttle hold but the pirouette continued and I just got her down but not with out a bit of damage. The belt cogs were damaged too.

After 4 crashes in a row on take off I finally turned the tail blades and when the main blades did NOT turn I knew I'd found the problem. Installed a new aluminum belt drive pulley and drive belt. The MicroBeast is holding her like a rock. Flies like on rails again.

I SHOULD have picked up that the problem was the pirouettes and kept troubleshooting the tail system. I changed servos, tied down the beast, aligned the beast, replaced the beast and replaced all 3 collective servos. The fourth crash MADE me keep looking for the problem in the tail. That's when I found it.

Just wanted to share the results of this problem. Beat me up for 2 weeks. Was getting ready to abandon the MicroBeast. Glad I kept at it.
This hobby is WAY too expensive!!
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06-30-2011 11:17 PM  8 years ago
Raptorz499

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NJ

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Awesome! Now you can get back to enjoying the heli...especially with the Beast on it.
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HomeRC & Power✈️Aircraft🚁HelicopterFlybarless Rotor Head SystemsBeastX › and a collective bump?
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