Richard (Rick) Karlquist wrote:
> Not a variac, you'll loose torque. You need an add-on pulse width
> modulation motor speed controller.
Even then, under a heavy load excessive heating is likely.
> Not sure if they make them anymore
> since they are built into drills now. You could build one yourself
> with an SCR and pot.
Two SCRs or a Triac of suficient current capability and a diac for
triggering. The circuit is relatively simple to build, but it's noisy
and easily affected by spikes or another controller close by.
> A light dimmer might work as a speed
> controller since it uses the PWM method. Let us know what you
> come up with.
>
I doubt the light dimmer would have the current capability needed. You
are basically getting down to the starting torque under load and that
takes a lot of current.
73
Roger (K8RI)
> 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@comcast.net> wrote:
>>
>>
>>> Pictures
>>>
>>>
>>> ------------------------------
>>>
>>> *From:* Dennis Vernacchia [mailto:n6ki73@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@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@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@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@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@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@contesting.com
>>> [mailto:towertalk-bounces@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*
>>> _______________________________________________
>>>
>>>
>>>
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>>
>>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|