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645 MG with plastic spline?

Old 01-16-2014, 11:04 AM
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MetallicaJunkie
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Default 645 MG with plastic spline?

when did hitec start using plastic splines on their servos?
http://www.ebay.com/itm/HiTec-HS-645...item2334cf0851
Old 01-16-2014, 11:56 AM
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Steve Percifield
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probably not a Hitec servo., especially for $5.55. . Ebay has many copies.

Last edited by Steve Percifield; 01-16-2014 at 12:01 PM.
Old 01-16-2014, 04:49 PM
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airbusdrvr
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Just checked one my Hitec metal gear servos and the spline is metal. This, I would agree, is a fake.
Old 01-16-2014, 10:47 PM
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A.T.
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Originally Posted by MetallicaJunkie View Post
when did hitec start using plastic splines on their servos?
http://www.ebay.com/itm/HiTec-HS-645...item2334cf0851
Reason to buy from a reputable dealer.
Whilst all Hitec MG servo do have a plastic gear, it is never the output shaft:
. Servo - FAQ : Metal Gear Servos - Why MG Servo have a Plastic Primary 1st Gear
the following may also assist:
. Servo - Hitec MG Servo Output Shaft Size - Cross Hair Mark New
. Servo - Hitec RCD Servo Nomenclature & Ball Bearing Sizes

. Servo - Horn Arm Spline Count and Inter Brand Compatibility
. Servo - Horn Arm Extension - DIY Alloy, FRP, CF & Nylon


Much more information available under sub sections:
"Glitches & Jitter in Receiver, Servo & ESC - Causes and Cures"
"Servo - Alterations, Calculators, Databases, Leads, Repairs, Convert to an ESC or winch & FAQ."
below
"Radio Systems, Accessories, Alterations and FAQ" at
Alan's Hobby, Model & RC FAQ Web Links

Alan T.
Old 01-17-2014, 10:33 AM
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MetallicaJunkie
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you have some great reading material AT,,,,,good job and thanks
Old 02-05-2014, 08:30 PM
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Originally Posted by A.T. View Post
Reason to buy from a reputable dealer.
Whilst all Hitec MG servo do have a plastic gear, it is never the output shaft:
. Servo - FAQ : Metal Gear Servos - Why MG Servo have a Plastic Primary 1st Gear
the following may also assist:
. Servo - Hitec MG Servo Output Shaft Size - Cross Hair Mark New
. Servo - Hitec RCD Servo Nomenclature & Ball Bearing Sizes

. Servo - Horn Arm Spline Count and Inter Brand Compatibility
. Servo - Horn Arm Extension - DIY Alloy, FRP, CF & Nylon


Much more information available under sub sections:
"Glitches & Jitter in Receiver, Servo & ESC - Causes and Cures"
"Servo - Alterations, Calculators, Databases, Leads, Repairs, Convert to an ESC or winch & FAQ."
below
"Radio Systems, Accessories, Alterations and FAQ" at
Alan's Hobby, Model & RC FAQ Web Links

Alan T.
Alan. I would be honored if you could tell me your "picks" for a all around reliable giant scale servo for little or no money.I would like to build up to giant scale now.all my radio equipment is 72hz but in good shape.is digital worth the extra cost.I just seen a "field balancer" on the web tonight for the first time.Aint that some sort of farm tractor? thanks....bob
Old 02-05-2014, 09:51 PM
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A.T.
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Originally Posted by bobbydee View Post
Alan. I would be honored if you could tell me your "picks" for a all around reliable giant scale servo for little or no money.
I would like to build up to giant scale now.all my radio equipment is 72hz but in good shape.is digital worth the extra cost.
I just seen a "field balancer" on the web tonight for the first time.
Aint that some sort of farm tractor? thanks....bob
Thank you for your trust and I am of an age to agree with your farm tractor comparison.
Without knowing model type, size, engine etc, suggest you use the Hitec Servo Selector,
staying with the analogue servo.

. Hitec - Servo Configurator .. which to use

Still nothing wrong with using PPM on all classes of model as being well proven.

Alan T.
Alan's Hobby, Model & RC FAQ Web Links
Old 02-06-2014, 07:42 PM
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Thank you A.T.!
Old 02-07-2014, 12:42 PM
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Hemikiller
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It appears to have an adapter stuck on it, probably from a steering servo saver in an R/C car. Most came with an assortment of adapters to fit the most popular servo styles..

http://www3.towerhobbies.com/cgi-bin...aver&search=Go

Nothing about it screams "fake" to me

http://hitecrcd.com/products/servos/...-servo/product

Last edited by Hemikiller; 02-07-2014 at 12:46 PM.

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