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[TowerTalk] Fw: motorizing the hand winch on a US Tower MARB550

To: <towertalk@contesting.com>
Subject: [TowerTalk] Fw: motorizing the hand winch on a US Tower MARB550
From: "Dr. Howard S. White" <drpaper@msn.com>
Reply-to: "Dr. Howard S. White" <drpaper@msn.com>
Date: Wed, 22 Feb 2006 00:06:29 -0800
List-post: <mailto:towertalk@contesting.com>
Take a look at www.ky6la.com

We did this for the raising fixture.. but it also works for the tower..

We used a Socket and 1/2 Power drill to power the Hand winch...

It helps to get someone to weld the Winch Nut to the shaft.
Bought a Socket at Sears that fit the Winch Nut.  $8
Cut a Socket Extension Shaft ($5) and ground it to fit a 1/2" Drill Chuck
Borrowed a 1/2" variable speed reversible drill .. low RPM mode (350 RPM)

Works great
__________________________________________________________
Howard S. White Ph.D. P. Eng., VE3GFW/K6  ex-AE6SM  KY6LA
Website: www.ky6la.com
"No Good Deed Goes Unpunished"
"Ham Antennas Save Lives - Katrina, 2003 San Diego Fires, 911"
----- Original Message ----- 
From: "tom scott " <trscott@sterlink.net>
To: <towertalk@contesting.com>
Sent: Tuesday, February 21, 2006 9:48 AM
Subject: [TowerTalk] motorizing the hand winch on a US Tower MARB550


I am thinking about motorizing the hand winch on this tower. In other words,
just putting a belt or chain drive. Seems like this ought to be a lot
cheaper than putting a motorwinch on it. The hand winch has a good friction
brake that prevents runaway.

Thoughts?

I have to decide on the drive ratio details, how fast would you drive it?
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