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SAB Goblin 630/700/770 SAB Heli Division 630/700/770 - Goblin Helicopters Factory Support


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Old 03-30-2021, 05:50 PM   #61 (permalink)
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Quote:
Originally Posted by jrman83 View Post
Your original statement was that no FBL adjustment would tune that out unless I misread your previous.

To work? Absolutely, without issues. If the OEM puts up several dozen videos of their pros doing all kinds of crazy shit with it in stock form, I should reasonably expect the same, if I was capable, and definitely in a lower state as you mentioned your headspeeds are relatively low (some are going as high as 2400). Obviously "working" and "liking" are two different things.

So think about if you had gone onto the SAB site and complained that their brand new heli had the issues you're having and their response was you needed to buy X to correct it. I know how that would make me feel about my purchase. You?
This is getting crazy! Had a feeling I shouldn't have posted here.

Stock dampers are tunable for a reason. No need to reach out for support, refunds, etc. My only intention here was to recommend the product if you like stiff damping.

I never said you needed to buy anything!
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Old 03-30-2021, 06:03 PM   #62 (permalink)
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This is getting crazy! Had a feeling I shouldn't have posted here.

Stock dampers are tunable for a reason. No need to reach out for support, refunds, etc. My only intention here was to recommend the product if you like stiff damping.

I never said you needed to buy anything!
Right, you said "you" needed to buy after no amount of tuning helped. This was the area we disagreed on.
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Old 03-30-2021, 06:19 PM   #63 (permalink)
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Right, you said "you" needed to buy after no amount of tuning helped. This was the area we disagreed on.
I never said that. Why not quote me instead of making up comments on my behalf to support your claims?

For like the 4th time - I could have tuned this out with the stock dampers.

Seriously, I'm done with this. Just move on.
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Old 03-30-2021, 06:50 PM   #64 (permalink)
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No FBL settings can cure a tail bounce that is separate from the blades (there are no forces available to correct the issue)
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No FBL setting will fix that.
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What force would the FBL controller use to fix the problem?

Just for kicks I went to both extremes on Elevator D gain (and numerous other settings). Nothing changed the behavior

Dampers fixed it on the first try as I has with numerous other airframes. Only difference in this run was using rigid dampers instead of adjusting the stock dampers with shims.
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There is no force available to counteract this behavior. You might be able to mitigate it slightly through FBL settings but any change to this will also affect the head which is working to my liking.

These dampers fixed my problems. I could have fixed this in the stock dampers as well.
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I enjoy playing with FBL settings and I've pushed every Brain settings from min to max over the years. There is no setting that will either introduce or fix this behavior.
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Again, I could have tuned this out in the stock dampers.
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I never said that. Why not quote me instead of making up comments on my behalf to support your claims?

For like the 4th time - I could have tuned this out with the stock dampers.

Seriously, I'm done with this. Just move on.
I haven't put any words into your mouth, but okay. Here are you very own words. I thought I summarized well.
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Last edited by jrman83; 03-30-2021 at 07:06 PM..
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Old 03-30-2021, 09:02 PM   #65 (permalink)
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Yeah, nice summary.

>>you said "you" needed to buy after no amount of tuning helped<<

Yet, your still unable to quote me saying that. Whatever.
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Old 03-31-2021, 07:43 AM   #66 (permalink)
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Quote:
Originally Posted by Weule View Post
What force would the FBL controller use to fix the problem?

Just for kicks I went to both extremes on Elevator D gain (and numerous other settings). Nothing changed the behavior

Dampers fixed it on the first try as I has with numerous other airframes. Only difference in this run was using rigid dampers instead of adjusting the stock dampers with shims.
Are these your words? My interpretation of "your words" was that you had an issue, you tried to tune it out and couldn't, "Just for kicks I went to both extremes on Elevator D gain (and numerous other settings), nothing changed the behavior", then to fix it you installed these dampeners, "Dampers fixed it on the first try as I has with numerous other airframes". I thought my summary covered it quite well.

You also started out by saying that "No FBL setting will fix that", quoted above as well, and then after going into reasons why you can't do that said, "Again, I could have tuned this out in the stock dampers." Maybe you're not keeping track of what you're saying, but I have not put words into your mouth OR misquoted you.
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Old 03-31-2021, 04:29 PM   #67 (permalink)
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Helpful video on install in Kraken or raw 700 from auggie

Installation of XGuard RigidCore Dampeners (8 min 55 sec)
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Old 03-31-2021, 08:44 PM   #68 (permalink)
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Installation of XGuard RigidCore Dampeners (8 min 55 sec)
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Old 04-01-2021, 06:25 PM   #69 (permalink)
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I did the same way when I install the XGuard RC Rigidcore on my raw 700. Mine was very hard to enter the head block , I used a deburring tool and made a clean chamfer edge also my feathering shaft was easy to go through the dampeners. I use the one in the link below.

https://www.amainhobbies.com/xguard-...g0302/p1276743
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Old 04-01-2021, 06:34 PM   #70 (permalink)
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Here too:
https://xguardrc.com/product/rigidco...-700-dampener/
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Old 05-01-2021, 03:04 PM   #71 (permalink)
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Just started building up the RAW and made the head with the xguard dampeners, the blade grips are quite notchy when moving them by hand. was wondering if this was normal for this head?
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Old 05-01-2021, 04:37 PM   #72 (permalink)
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It should be smooth or at least mine was. Did you eliminate the shim between the Rigidcore damper and the blade grip?
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Old 05-01-2021, 05:12 PM   #73 (permalink)
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yeah, no shim. im wondering if it's because there so much preload on the radial bearings
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Old 05-02-2021, 12:10 AM   #74 (permalink)
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found the problem, the preinstalled bearings in the blade grips are bad. Both feel like they're grinding a lot.
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Old 05-03-2021, 09:10 AM   #75 (permalink)
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grab your grips and pull outward and see how they are. They should be very smooth then.
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Old 06-02-2021, 09:12 PM   #76 (permalink)
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Quote:
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found the problem, the preinstalled bearings in the blade grips are bad. Both feel like they're grinding a lot.


Mine feel the same way after 15 flight. Check the pre install bearing if itís smooth.


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Old 06-03-2021, 03:18 PM   #77 (permalink)
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How did you remove the bearing they are press in are they not?
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Old 06-03-2021, 05:47 PM   #78 (permalink)
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Just heat the grips a little with a heat gun and use something to tap it out.


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Old 06-28-2021, 02:22 AM   #79 (permalink)
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So some time has passed how are people feeling about these now in their RAW helis?
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Old 06-28-2021, 09:26 AM   #80 (permalink)
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I have them in a kraken with the same head as the raw and they are great. Exactly as described. Very crisp for 3d and auto great with no wobbles at low head speeds.
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