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HomeAircraftHelicopterMain Discussion › Trex 550 brass servo collars
08-20-2017 09:38 PM  11 months agoPost 1
joshmoha

rrApprentice

midland texas

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Do you use the brass collars that come with the Sevos? The manul shows to but screws are to big to go through them. I

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08-20-2017 11:35 PM  11 months agoPost 2
Pistol Pete

rrProfessor

Seffner, FL

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Users choice
It serves two purposes: It's part of a vibration isolation system and to keep fastener from squishing the rubber grommet.

That said, some don't in electrics.

If you don't, and depending on heli used, consider using a washer if your heli requires M2 bolt since the servo screw will have a built in washer.

For non electrics, do use them for vibrations isolation.

If you do decide to use them, the flare part goes towards frame as-in insert from bottom of servo tabs. The flare acts as not only a base but kind of like a secondary washer and keep it from being pushed into frame.

Use forceps to hold while screwing screw. Not easy but doable.

~~Enjoying the hobby one flight at a time~~

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08-21-2017 01:24 AM  11 months agoPost 3
joshmoha

rrApprentice

midland texas

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Servo
I will drill them out

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08-21-2017 04:18 AM  11 months agoPost 4
EEngineer

rrProfessor

TX

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"keep fastener from squishing the rubber grommet."

That's what I also thought....

Logo 600SXs, 800XX, TDR IIs

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08-21-2017 01:45 PM  11 months agoPost 5
joshmoha

rrApprentice

midland texas

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Trex
Do y'all drill them out so the screw will fit through them?

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08-21-2017 02:17 PM  11 months agoPost 6
Pistol Pete

rrProfessor

Seffner, FL

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Are you using the screws that came with servo? They "should" fit through.

Given how thin and fragile those inserts really are and unless you have the correct size drill bit, they can be easily ruined.

If you do have the correct size drill bit, run the drill in reverse so that bit wont bite into the brass

Best tool for such is a round "diamond" file along with a little patience. A must have "set" for hobbyist and or handymen.

https://www.walmart.com/ip/Yescom-1...6&wl13=&veh=sem

Or

https://www.harborfreight.com/needl...0-pc-69876.html

Or

Local hobby shop

~~Enjoying the hobby one flight at a time~~

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08-21-2017 03:07 PM  11 months agoPost 7
EEngineer

rrProfessor

TX

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"Do y'all drill them out so the screw will fit through them?"

Or you could fabricate some using a washer and some nylon tubing of the right length....

Logo 600SXs, 800XX, TDR IIs

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