Model Boat Mayhem

The Shipyard ( Dry Dock ): Builds & Questions => Yachts and Sail => Topic started by: Leaky Bottom on September 20, 2015, 09:53:42 am

Title: Sail winch drum
Post by: Leaky Bottom on September 20, 2015, 09:53:42 am

Hello
 
Does anyone know if a smaller diameter winch drum than that comes as standard is available for a Hitec HS725BB sail winch

Title: Re: Sail winch drum
Post by: Martin (Admin) on September 20, 2015, 12:52:38 pm

https://www.servocity.com/html/hs-785hb_3_5_rotations.html#.Vf6dI31fh_k

(https://www.servocity.com/assets/images/56314_Schematic.jpg)

Title: Re: Sail winch drum
Post by: Martin (Admin) on September 20, 2015, 12:54:05 pm

 
More info...

http://www.theamya.org/hints/sailservo.php

Title: Re: Sail winch drum
Post by: Leaky Bottom on September 20, 2015, 02:35:01 pm

Thanks, but that is the same as I already have, I'd like something about half the diameter

Title: Re: Sail winch drum
Post by: tigertiger on September 20, 2015, 03:08:41 pm

Hi Leaky
Why do you need one half the diameter? Less torque, shorter length of pull needed, or short of space.
There may be other alternative fixes.

Title: Re: Sail winch drum
Post by: Leaky Bottom on September 20, 2015, 05:42:45 pm

I need a shorter lenth of pull, I could just turn down the servo travel on the transmitter but I would prefer  a smaller drum.

Title: Re: Sail winch drum
Post by: JayDee on September 21, 2015, 06:33:49 pm

Hello,

This setup will give half the travel of the winch.
A line from the winch is anchored in the Hull, in that line is a Pulley, which is attached to the sheeting for the sails.
Sorry about the poor piccy, having Pc problems !!.

John.