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Atom 6HV and 6HVU Compass Atom 6HV and 6HVU Model Helicopter Discussion


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Old 09-11-2012, 03:49 PM   #721
Cullen Colapietro
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Thanks for sharing Caleb, one of my favorite events! Sad to miss it this year. Very nice flying as always...
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Old 09-11-2012, 08:07 PM   #722
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Here you can clearly see the damaged washers by manufacturer upon assembly. I am hoping replacing these washers is the cure until I can buy new metal tail........
Well more tail drama. Just bench ran it for 6 minutes, everything looks pretty good BUT…
When I give rudder input the whole tail gear and shaft follows the command. Ideally I would expect the gear to remain centered and not move but there is maybe 1/3 mm play on both sides of gear you can move it back and forth with a screwdriver. I thought maybe one of the thrust washers might be missing but 82-5808 and 82-5804 are both correctly installed on both sides. 61-5134 is correctly installed on both sides. I just tried to move my 7HV tailcase gear and it appears to be correct with 0 lateral thrust.
6HV has been this way since I got it as has this tail kick I get as well. Is this amount of play normal in the tailcase or do I need to tear it apart and shim the play out to achieve 0 thrust?
Thx


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Old 09-11-2012, 08:56 PM   #723
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sar,

Mine doesn't have any play at all. I have one brass and one silver washer/shim on each side of the pulley. You should shim out the play for sure. If an extra washer makes it too tight, then maybe substitute different types of washers being they have a different thickness.

Let us know how this turns out.

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Old 09-11-2012, 09:12 PM   #724
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sar,

Mine doesn't have any play at all. I have one brass and one silver washer/shim on each side of the pulley. You should shim out the play for sure. If an extra washer makes it too tight, then maybe substitute different types of washers being they have a different thickness.

Let us know how this turns out.

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Thx for the reply… this is beginning to look like the solution cause that much freeplay is easily a few degrees of uncommanded pitch… 2 years almost trying to fix this …
:banghead:

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Old 09-12-2012, 03:26 PM   #725
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Well digging through everything I have trying to find something to make like a .7mm tailcase shim and tada I found this, perfect fit on tailshaft. Slightly modified looks like the thickness will be close may have to dremel some off....


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Old 09-12-2012, 03:38 PM   #726
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Just make sure it doesn't contact both races of the tail case bearing. Unless you're going to use that one up against the pulley only.

Hope it works!

:fingerscrossed:
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Old 09-12-2012, 03:38 PM   #727
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And all nice and shiny! Nice soft copper under the plating. Now to get home and bash it in there with the trusty ballpeen…

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Old 09-12-2012, 03:42 PM   #728
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Quote:
Originally Posted by Bob O View Post
Just make sure it doesn't contact both races of the tail case bearing. Unless you're going to use that one up against the pulley only.

Hope it works!

:fingerscrossed:
Will do… I am thinking just shim against the left side case bearing for ease in installation…

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Old 09-12-2012, 05:01 PM   #729
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Sounds like a good plan, this way you don't have to actually "disassemble" anything.
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Old 09-12-2012, 07:44 PM   #730
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Ok here is update shot crummy phone pic but… I yanked the thin spacer and substituted my fabricated one and :bang
0 thrust belt looks perfect into boom fixing to bench test in a few. This is the stuff that keeps me excited about model helis the constant learning although I feel somewhat stupid that I didn't catch this float in the gearbox until now.....

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Old 09-12-2012, 08:23 PM   #731
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Nicely done Tom!

In another application (shimming reproduction standard gauge motor wheels), I have been able to find RC car shim washers that fit. Usually these have a fairly thin pattern. It's just a matter of finding the correct diameter.

I would think there are some that would fit the tail shaft.

Let us know how it works out, sir!
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Old 09-12-2012, 08:51 PM   #732
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Ty sir yes I am pleased with the fabrication hoping this is the cure at last. Still hoping to see a pic of that locomotive collection…
Best regards,
Tom

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Old 09-12-2012, 09:23 PM   #733
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Well 6 min run now I am as happy as I could be with bench testing. Will chunk heli in car maybe I can sneak some flight testing in am…

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Old 09-12-2012, 09:48 PM   #734
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Good luck! And don't forget to put that one screw in the very back of the left side tail case.
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Old 09-12-2012, 09:54 PM   #735
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Quote:
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Good luck! And don't forget to put that one screw in the very back of the left side tail case.
Thx ya it was just mocked up for photos and to check for thrust they are all locktited and back in.... thx guys

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Old 09-14-2012, 10:36 AM   #736
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Got my 6HV today
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Old 09-14-2012, 11:56 AM   #737
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Old 09-14-2012, 03:13 PM   #738
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nice Lojik , but did you cut your motor wires , looks kind of short to me
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Old 09-14-2012, 03:18 PM   #739
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Mine came short like that.

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Old 09-14-2012, 05:08 PM   #740
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that must be a pain in the #& when soldering and instaling it
here how mine looks like , long cables
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