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e-BEAM Beam E4 > What Dampners for Beam?
 
 
Jag72
Elite Veteran
Location: 20 minutes south of Boston Mass...

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I just acquired a Beam and it seems VERY mushy for 3d flying...

The dampners seem VERY soft and in fact when you pick up the machine by the blades you can see the grips almost "flapping"

I'm just curious what people out there in Beam land are using for 3d dampners?


Thanks

Anthony
05-06-2009 08:43 PM
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CoasterFuelPhil
Senior Heliman
Location: Rochester, NY

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I just use 2 hard dampners on each side, instead of one soft and one hard. seems to work great.
05-06-2009 09:38 PM
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cdrking
Elite Veteran
Location: Seattle

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I'm doing the same thing. Change them often. I would like some other options though.

Jeff

To hover is divine, the alternative is rather PLANE.
05-06-2009 10:17 PM
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jamesppp
Senior Heliman
Location: carrollton georgia usa

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Does your Beam have thrust bearinged grips? They came with or without for a while.

While you can carefully flex the blade grips up and down a tiny amount there should be no looseness or slop at all

#:>)*.......................*(<:#
05-07-2009 12:13 AM
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kekoboy40
Senior Heliman
Location: honduras

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use

doble damper is better
05-07-2009 12:15 AM
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brianr058
Heliman
Location: Sacramento, CA

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trueblood dampers, same ones for trex v-1

livin Inverted
05-07-2009 05:23 AM
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Jag72
Elite Veteran
Location: 20 minutes south of Boston Mass...

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Dampmers

I just ordered someof those Truebloods to try

Good timing because I just MASHED the Beam into the ground so I got to order spare parts at the same time
05-07-2009 07:09 PM
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rightflyer
Heliman
Location: Columbus OH

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dampeners

Beam only makes one style of dampeners, correct? So my option would be the Trueblood dampeners, right?

rightflyer
05-13-2009 12:38 AM
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Sonic88
Veteran
Location: Murfreesboro, TN

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Just ordered myself a pair. Had a $15 RH certificate laying around. Can't wait to see how they do.

Procrastinators of the world unite ... tomorrow.
AMA #: 912822
05-13-2009 05:24 PM
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Jag72
Elite Veteran
Location: 20 minutes south of Boston Mass...

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BUMMER

The Trueblood dampners for the v1 trex's DO NOT fit

They are about .5mm too small....meaning there is wayy too much slop in the headblock to use them...

anybody want a set of the red truebloods?


Anthony
05-13-2009 06:40 PM
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mikencg
Heliman
Location: Cincinnati, Ohio

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I have seen people use a little electrical tape around the spindle before putting dampers on. This will stretch the damper a bit and perhaps make them fit. Its not a good solution, but it may be better than what you had before.

I would try that before giving up on the red ones, especially since you already have them.

Mike
05-13-2009 09:03 PM
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Sonic88
Veteran
Location: Murfreesboro, TN

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Bummer is right! Well I may try the tape trick. Oh well they were inexpensive and I did grab some other parts I needed too.


brianr058: Do you actually use these in your Beam? If not please do not post second hand info that may or may not be correct. As you can see, two of us have made an ill-informed purchase.

Procrastinators of the world unite ... tomorrow.
AMA #: 912822
05-14-2009 01:24 AM
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cdrking
Elite Veteran
Location: Seattle

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I ordered the Trueblood V1 dampers and they are sloppy as can be. I don't understand how people are using them.

Jeff

To hover is divine, the alternative is rather PLANE.
05-14-2009 02:36 AM
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fly boy 1
Senior Heliman
Location: Milwaukee,WI

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Hey guys, the Red Trueblood dampers do work, the only issue is that the dimensions on the headblock are slightly different. On my Beams I use the reds with some of the thick Trex 450 shims for the dampers, as these are slightly longer than the stock Beam ones. You can also try two shims per side with the stock shims as well.
Eric

Probar Flybarless
Aerospire MultiGov
Team Outrage RC
05-14-2009 03:56 AM
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Jag72
Elite Veteran
Location: 20 minutes south of Boston Mass...

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NO WAY:)

There is NO WAY you would want to fly the Beam with the red truebloods...the grips flip and flop in the headblock because there is so much slop ....the truebloods are at least .5mm smaller in OD than the stock O-RINGS....Good thing I bought some stock Orings witht he truebloods...

I would NEVER recommend running tape on the spindle

I'm serious though...if someone wants a set of truebloods I have some I will give you
05-14-2009 01:51 PM
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fly boy 1
Senior Heliman
Location: Milwaukee,WI

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FWIW if you use larger shims to compress them they fill the small gap and work fine. I use the red truebloods in all of my competition machines...

Probar Flybarless
Aerospire MultiGov
Team Outrage RC
05-14-2009 01:57 PM
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Jag72
Elite Veteran
Location: 20 minutes south of Boston Mass...

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Beam?

Quote 
FWIW if you use larger shims to compress them they fill the small gap and work fine. I use the red truebloods in all of my competition machines...

Are we talking about a beam here? you are using these in a Beam?

If you are and you have to use shims to compress the dampners to stretch them out...then that means you must be torqueing the SHI* out of the Thrust bearings...I would never recommend compressing thrust bearings that much...I still don't see how this would be a feasable solution...

BTW...Using 2 hard Stock Orings seem to be fine ...I must have had worn out soft ones before
05-14-2009 02:06 PM
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fly boy 1
Senior Heliman
Location: Milwaukee,WI

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It does compress them somewhat, but I ran them in a similar fashion on my Trexs too. It does add some load to the thrust bearings, but not enough that they will become notchy. The red dampers are not like a rubber oring, when you compress them the shims will indent and deform the dampers, which leaves a permanent shape in them, taking the load off the thrust bearings after the dampers wear in. Trust me, it does work.

The stock orings have a good feel to them too, I just felt that they wore out pretty quickly with high headspeeds and aggressive flying. I get about 3 flights on the Orings, and about 20 flights on the red dampers.

If you look up my name on youtube there is a video from Efest flying these in my Beam.

Eric

Probar Flybarless
Aerospire MultiGov
Team Outrage RC
05-14-2009 04:47 PM
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scoyle
Senior Heliman
Location: IL

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I would think that the greatest load on the thrust bearings in the main grips is the centrifigul force generated by the blades themselves spinning at 3000+ rpms.

Scott

Spend... Build... Fly... Crash... Repeat...
05-14-2009 06:04 PM
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brianr058
Heliman
Location: Sacramento, CA

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sonic 88,I was just passing on info that came from these threads. I too have the truebloods, just haven't installed them yet.so first hand I don't no if they fit properly (my bad) although there were quite a few people that fly with them on the beam,that's why I ordered them. No harm intended!

livin Inverted
05-15-2009 05:40 PM
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