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HomeAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › Linear Servo....
01-21-2010 02:39 PM  8 years agoPost 1
darkfa8

rrElite Veteran

Brick, NJ - USA

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http://www.emsjomar.com/SearchResult.aspx?CategoryID=18

While this servo isn't powerful enough for a heli application, I wondered if the geometry would be improved from such a type of servo?

- Dan Goldstein
Team Revolectrix

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01-21-2010 05:00 PM  8 years agoPost 2
Justin Stuart (RIP)

rrMaster

Plano, Texas

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Linear servos were in fashion a long time ago, but like single stick radios they seem to have disappeared. I wonder why that is? I think they would be better in a direct-to-swash linkage.

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

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01-21-2010 07:44 PM  8 years agoPost 3
dkshema

rrMaster

Cedar Rapids, IA

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The older linear output servos were nice, however the output was a rack and pinion arrangement, and was easily damaged in a crash. Crashes usually resulted in the top of the servo being ripped off with the ensuing loss of gears and those little countershafts. It also required a good sized servo to get a decent amount of travel. The were not particularly fast. Backlash in the gear train was not all that great.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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01-21-2010 08:54 PM  8 years agoPost 4
dialarotor

rrElite Veteran

Traverse City, Michigan

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EMS Linear
Here is a link to the latest EMS linear conversion. Rack and pinion is gone, no slop and should also fit on the S3152 servo. A little faster and more inch/ounces.

http://www.emsjomar.com/SearchResult.aspx?CategoryID=18

They use to make a cool double grooved wheel with strong braided cables to a traveling linear car. You could mount on any servo and it was strong, perfect for cyclics going to bellcranks.

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