[TowerTalk] Reply - KW3000 with 1/2 inch Drill Motor - Wrongassumption in responses

[Dubovsky, George]

You will still lose torque with a pwm light dimmer. You will need something like an variable speed drive, where you vary the drive frequency and voltage simultaneously, essentially synthesizing a complete sine wave at an adjustable frequency. I use them on three-phase motors on my lathe and mill, but they are also available for single-phase motors. Not cheap, but less than the Hole Hawg ;-)

73,

geo - n4ua

-----Original Message-----
From: towertalk-bounces at contesting.com [mailto:towertalk-bounces at contesting.com] On Behalf Of Richard (Rick) Karlquist
Sent: Thursday, October 15, 2009 9:31 AM
To: Dennis Vernacchia
Cc: towertalk; Chuck Frame
Subject: Re: [TowerTalk] Reply - KW3000 with 1/2 inch Drill Motor - Wrongassumption in responses

Not a variac, you'll loose torque.  You need an add-on pulse width 
modulation motor speed controller.  Not sure if they make them anymore 
since they are built into drills now.   You could build one yourself
with an SCR and pot.  A light dimmer might work as a speed
controller since it uses the PWM method.  Let us know what you
come up with.

Rick N6RK


Dennis Vernacchia wrote:
> Chuck
> 
> I got hold of a Milwaukee Hole Hawg Drill .....and with my special drill
> check to winch shaft adapter
> .....the Hole Hawg turned slow enuf tilt the antenna system from Horizontal
> to vertical  and back down !
> 
> Would like to slow it down a bit but have to let off trigger now and then,
> to do that
> as just can't find a drill with it's power and torque...and we fet a bit of
> a bounce
> in the system that I don't like when we abruptly stop and start the drill
> 
> Wonder if the Hole Hawg will tolerate a variac if it converts the Input 110
> VAC to DC in teh Drill
> 
> Anyone have experience using a AC Variac on a Hole Hawg Drill to slow it
> 
> I was told that should work as long as teh drill is NOT an AC Induction
> motor
> 
> 73, Dennis N6KI
> 
> On Tue, Sep 22, 2009 at 6:30 PM, Chuck Frame <n6psn at comcast.net> wrote:
> 
>>  Pictures
>>
>>
>>  ------------------------------
>>
>> *From:* Dennis Vernacchia [mailto:n6ki73 at gmail.com]
>> *Sent:* Tuesday, September 22, 2009 12:49 PM
>>
>> *To:* Chuck Frame
>> *Subject:* Re: [TowerTalk] Reply - KW3000 with 1/2 inch Drill Motor -
>> Wrongassumption in responses
>>
>>
>>
>> OK Chuck,
>>
>>
>> I'll hope to hook up with you next time I am near Rio Linda
>>
>> Plan B would be to look ar some photos of system if U have any
>>
>> 73, Dennis N6KI
>>
>> On Tue, Sep 22, 2009 at 5:05 AM, Chuck Frame <n6psn at comcast.net> wrote:
>>
>> Dennis,
>>
>>  My cell # is 916 798-6690. My work schedule varies. I could be around mid
>> afternoon,.
>>
>>
>>
>>
>>  ------------------------------
>>
>> *From:* Dennis Vernacchia [mailto:n6ki73 at gmail.com]
>> *Sent:* Monday, September 21, 2009 11:08 PM
>>
>>
>> *To:* Chuck Frame
>> *Subject:* Re: [TowerTalk] Reply - KW3000 with 1/2 inch Drill Motor -
>> Wrongassumption in responses
>>
>>
>>
>> Hi Chicj,
>>
>> I may be heading thru Rio Linda
>> in October as I head from Sacramento to Marysville
>> Can U give me a phone number to get hold of you and are you
>> available on weekday mid afternoons as that is times I head back
>> from Marysville typically ?
>>
>> On Mon, Sep 21, 2009 at 5:28 PM, Chuck Frame <n6psn at comcast.net> wrote:
>>
>> Dennis,
>>
>>  I have a Force 12 5 BA and a KLM 40 - 2 15 feet above that.The mast is Sch
>> 80 Steel. The winch is the 3000 worm gear. I have had bigger stuff on the
>> tower and the tilt ,winch and hole hog work fine.
>>
>> If you live close to Rio Linda come buy and check it out. I use the same
>> setup on the 55' US tower also with a 5 band Quad on a 24' boom.
>>
>>   Chuck
>>
>>
>>  ------------------------------
>>
>> *From:* Dennis Vernacchia [mailto:n6ki73 at gmail.com]
>> *Sent:* Monday, September 21, 2009 8:50 AM
>> *To:* Chuck Frame
>> *Subject:* Re: [TowerTalk] Reply - KW3000 with 1/2 inch Drill Motor -
>> Wrongassumption in responses
>>
>>
>>
>> Chuck,
>>
>> What winch in your system and were antennas mounted on your tower when you
>> tilted it ?
>> We have 150 lBs of antenna plus tower tilts at base, nit 7 or 8 feet up
>> like most towers will tilt.
>>
>> Dennis
>>
>> On Mon, Sep 21, 2009 at 7:12 AM, Chuck Frame <n6psn at comcast.net> wrote:
>>
>> I use the hole Hog to tilt my 72' US tower with no problems.
>> 73 Chuck N6PSN
>>
>>
>> -----Original Message-----
>> From: towertalk-bounces at contesting.com
>> [mailto:towertalk-bounces at contesting.com] On Behalf Of Dennis Vernacchia
>> Sent: Sunday, September 20, 2009 6:01 PM
>> To: towertalk
>> Subject: [TowerTalk] Reply - KW3000 with 1/2 inch Drill Motor -
>> Wrongassumption in responses
>>
>> *Guys, its for tilting a very heavy tower antenna system
>> .....not for cranking up and down a tower
>>
>> This requires a lot more Torque
>>
>> All responses I am getting talk about cranking tower up and down...not the
>> situation!!!
>>
>> 73, Dennis N6KI*
>> _______________________________________________
>>
>>
>>
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>> TowerTalk mailing list
>> TowerTalk at contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
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>>
>>
>>
>>
>>
>>
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