Capstan Travel?

Mark P.

Visit my builders log at www.ZenithOwner.com
Joined
Apr 21, 2017
Messages
40
Location
Horizon Lakes Airpark, MI
To connect a servo to my elevator cable, I need just under 5" of travel. Right now my servo has the standard arm on it with a max travel of 2.6".

If I change to the capstan, does that allow for more travel?
 

Rhino

Well-Known Member
Joined
Jul 20, 2009
Messages
1,244
What servo are you using? The C (capstan) servos I've seen for cables don't have arms. They have a rotating drum the cable goes around.
 

Mark P.

Visit my builders log at www.ZenithOwner.com
Joined
Apr 21, 2017
Messages
40
Location
Horizon Lakes Airpark, MI
AH! It looks like the capstan servo is an entirely different servo. I thought the process was to take off the arm on a regular servo and then add the rotating drum. I now see that on the Dynon website, they list the capstan servo as a whole separate servo. Looks like a call to Dynon is in order!
 

Rhino

Well-Known Member
Joined
Jul 20, 2009
Messages
1,244
They might be the same except for the drum/arm. I don't know. If so, ask if you can buy a drum separately. That should be a lot cheaper than a whole new servo.
 

Bill Putney

Active Member
Joined
Jul 28, 2019
Messages
101
Location
Hillsboro, OR (KHIO)
Dynon will swap out servos if after you get one installed it turns out need one with a higher torque range. They might do a swap of one with an arm for one with a capstan too. I think the price is the same for arm or capstan.
-Bill
 
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