Tail drive gear mesh?

shadco · 07-13-2012, 08:30 AM

Is this offset normal or do I have something wrong here. The gear in the tail box sits high compared to the gear on the main shaft.

Wh1teAfr1can · 07-13-2012, 08:42 AM

It's as designed so nothing to worry about and also if you notice the gear train is a little tight that is normal too it will get super smooth after about 10 flights or so

nivaldin · 07-13-2012, 09:14 AM

Mine has the same misalignment, don't worry, it will work perfectly.

Arcturus97 · 07-13-2012, 06:16 PM

Yep, I asked the exact same question a couple of months ago

nivaldin · 07-13-2012, 10:57 PM

Even in the pic of the manual, you will see this misalignment lol.

OnTheSnap · 07-14-2012, 03:58 PM

If the mesh is tight don't expect it to loosen up much by itself with black gears. I had to slot all the boom mounting holes by .25mm to fix the mesh on mine.

Wh1teAfr1can · 07-16-2012, 03:54 PM

Quote:

Originally Posted by OnTheSnap

If the mesh is tight don't expect it to loosen up much by itself with black gears. I had to slot all the boom mounting holes by .25mm to fix the mesh on mine.

I have seen the complete opposite. they go from only being able to free wheel a little to super smooth.

dantemcc · 07-17-2012, 05:37 PM

Its funny now that some one brings this up. I've always seen pic of both, either a little low or a little high. I have yet to see any pics of the f50 where its all even. But as long as it preforms well, then that's all I really care about.

ericcolon · 07-17-2012, 11:10 PM

Quote:

Originally Posted by dantemcc

Its funny now that some one brings this up. I've always seen pic of both, either a little low or a little high. I have yet to see any pics of the f50 where its all even. But as long as it preforms well, then that's all I really care about.

Well here you go. Pretty even to me.

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rex09 · 07-18-2012, 04:55 AM

I have found the mesh betweeen these two gears (only the black ones) a problem each time I changed them, the first set where fitted because they looked good & the mesh was OKish, took about 20 flights to free up. but the last set

The Tail gear under the main gear ran off centre, It would become tight evey 1/2 rotation, The outside of the gear it's self was 0.001" out of round, I measured the run out when mated with the main gear at 0.008", I moved the clutch housing 90 deg at at time, each move it changed, put another new gear in, it was the same, ended up turning it over, best I got was 0.005", tried a new umbrella gear set, no change.
Turned the inner race of the clutch 180 deg, it was best with run out at 0.002.
so now it is even, but still tight with no backlash ? compared to the white gears.
With the blades off, it is firm to turn, blades on from 2180 rpm stops in about 30 sec, the white one would take a miniute.
Being an aircraft/helicopter engineer for 35 years, to me this tight a mesh is not good, increased load, heat, & worst of all, vibration,

in a FBL that is not a good thing,
Time to improve there quality?

dantemcc · 07-18-2012, 06:22 AM

"Time to improve their quality"! AGREED!

RyuuChi · 07-18-2012, 10:47 AM

Lets face it, all of these companies could stand to improve their overall quality... im not sure if any of my helis with this configuration have perfect alignment on those gears. I've never had any major problems with the quality of parts on anything other than cloned birds really... and even the minor ones were made good on.

and not to be a jerk but, ignorance is defined as a lack of knowledge or information, which has nothing to do with intelligence, which is defined as ones ability to aquire and apply knowledge and skills. just thought someone should politely point that out.

rex09 · 07-29-2012, 02:33 AM

UP DATE:
It was well worth the time to get these gears right,

The Fusion had always been smooth or so I thought untill now, The diffrence is like flying a whole new super heli,

The AR7200BX has helped the flying, Spent hours getting the setup within 0.1 deg, not one feild adjustment required, smooth as He**. Very happy.

Quote:

Originally Posted by rex09

I have found the mesh betweeen these two gears (only the black ones) a problem each time I changed them, the first set where fitted because they looked good & the mesh was OKish, took about 20 flights to free up. but the last set

The Tail gear under the main gear ran off centre, It would become tight evey 1/2 rotation, The outside of the gear it's self was 0.001" out of round, I measured the run out when mated with the main gear at 0.008", I moved the clutch housing 90 deg at at time, each move it changed, put another new gear in, it was the same, ended up turning it over, best I got was 0.005", tried a new umbrella gear set, no change.
Turned the inner race of the clutch 180 deg, it was best with run out at 0.002.
so now it is even, but still tight with no backlash ? compared to the white gears.
With the blades off, it is firm to turn, blades on from 2180 rpm stops in about 30 sec, the white one would take a miniute.
Being an aircraft/helicopter engineer for 35 years, to me this tight a mesh is not good, increased load, heat, & worst of all, vibration,

in a FBL that is not a good thing,
Time to improve there quality?

07-13-2012, 08:30 AM	#1
shadco Registered Users My HF Map location Join Date: Dec 2011 Location: Arnold, Maryland	Tail drive gear mesh? Is this offset normal or do I have something wrong here. The gear in the tail box sits high compared to the gear on the main shaft. __________________ Synergy E5-S KDE 600XF MKS HV YGE Vbar : Compass 6HV Quantum 4125 MKS HV YGE Vbar SAB G500 Savox 4050 KST/MKS HV YGE HC3SX Compass Warp Scorpion 2520 MKS YGE SK540 : 130X MCPX BL Nano 14SG DX8

07-13-2012, 08:42 AM	#2
Wh1teAfr1can Registered Users Join Date: May 2011 Location: Huntsville, AL	It's as designed so nothing to worry about and also if you notice the gear train is a little tight that is normal too it will get super smooth after about 10 flights or so __________________ Team Kontronik Team minicopter Diabolo Kosmik 200, Pyro 750 - 560kv, HC3X, BLS 255/256

07-13-2012, 09:14 AM	#3
nivaldin Registered Users Join Date: Apr 2012 Location: Brasil, Goiânia/Goiás	Mine has the same misalignment, don't worry, it will work perfectly. __________________ Fusion 50 FBL * Mini-Vbar * 10s battery * CC Phoenix ICE2 80HV * Scorpion 630KV To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

07-13-2012, 06:16 PM	#4
Arcturus97 Registered Users My HF Map location Join Date: Jan 2011 Location: Northern Virginia	Yep, I asked the exact same question a couple of months ago __________________ * Outrage Fusion 50 FBL, Torq HV BL servos, SK-540, Quantum 4125-560, ICE2 HV80, 12S, Edge 623 * Align T-Rex 500E, DFC Head, SK-540, ICE 75, Mavrikk G5 Pro * Blade Nano CPX / mCPX / 120SR / mSR * Futaba 8FG Super & Spektrum DX7 dsm2

07-13-2012, 10:57 PM	#5
nivaldin Registered Users Join Date: Apr 2012 Location: Brasil, Goiânia/Goiás	Even in the pic of the manual, you will see this misalignment lol. __________________ Fusion 50 FBL * Mini-Vbar * 10s battery * CC Phoenix ICE2 80HV * Scorpion 630KV To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

07-14-2012, 03:58 PM	#6
OnTheSnap Registered Users Join Date: Jan 2009 Location: Santa Clara, Ca	If the mesh is tight don't expect it to loosen up much by itself with black gears. I had to slot all the boom mounting holes by .25mm to fix the mesh on mine. __________________ Goblin 700, TT X50e, Synergy E5-600, Fusion50, Trex 700e HeliDirect, Team iKon, GrandRC

07-17-2012, 05:37 PM	#8
dantemcc Registered Users Join Date: Oct 2010 Location: georgia	Its funny now that some one brings this up. I've always seen pic of both, either a little low or a little high. I have yet to see any pics of the f50 where its all even. But as long as it preforms well, then that's all I really care about. __________________ Why does everyone keep calling me Dan? My name is Dante To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

07-18-2012, 04:55 AM	#10
rex09 Registered Users Join Date: Dec 2009 Location: Australia	I have found the mesh betweeen these two gears (only the black ones) a problem each time I changed them, the first set where fitted because they looked good & the mesh was OKish, took about 20 flights to free up. but the last set The Tail gear under the main gear ran off centre, It would become tight evey 1/2 rotation, The outside of the gear it's self was 0.001" out of round, I measured the run out when mated with the main gear at 0.008", I moved the clutch housing 90 deg at at time, each move it changed, put another new gear in, it was the same, ended up turning it over, best I got was 0.005", tried a new umbrella gear set, no change. Turned the inner race of the clutch 180 deg, it was best with run out at 0.002. so now it is even, but still tight with no backlash ? compared to the white gears. With the blades off, it is firm to turn, blades on from 2180 rpm stops in about 30 sec, the white one would take a miniute. Being an aircraft/helicopter engineer for 35 years, to me this tight a mesh is not good, increased load, heat, & worst of all, vibration, in a FBL that is not a good thing, Time to improve there quality?

07-18-2012, 06:22 AM	#11
dantemcc Registered Users Join Date: Oct 2010 Location: georgia	"Time to improve their quality"! AGREED! __________________ Why does everyone keep calling me Dan? My name is Dante To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

07-18-2012, 10:47 AM	#12
RyuuChi Registered Users Join Date: Apr 2008 Location: nj/pa	Lets face it, all of these companies could stand to improve their overall quality... im not sure if any of my helis with this configuration have perfect alignment on those gears. I've never had any major problems with the quality of parts on anything other than cloned birds really... and even the minor ones were made good on. and not to be a jerk but, ignorance is defined as a lack of knowledge or information, which has nothing to do with intelligence, which is defined as ones ability to aquire and apply knowledge and skills. just thought someone should politely point that out. __________________ Thank god i have snowboarding to keep me occupied when its too cold to fly! To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

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