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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Reply\s+\-\s+KW3000\s+with\s+1\/2\s+inch\s+Drill\s+Motor\s+\-\s+Wrongassumption\s+in\s+responses\s*$/: 9 ]

Total 9 documents matching your query.

1. Re: [TowerTalk] Reply - KW3000 with 1/2 inch Drill Motor - Wrongassumption in responses (score: 1)
Author: Dennis Vernacchia <n6ki73@gmail.com>
Date: Wed, 14 Oct 2009 17:11:32 -0700
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
/archives//html/Towertalk/2009-10/msg00214.html (12,771 bytes)

2. Re: [TowerTalk] Reply - KW3000 with 1/2 inch Drill Motor - Wrongassumption in responses (score: 1)
Author: Jon K Hellan <hellan@acm.org>
Date: Thu, 15 Oct 2009 13:30:34 +0200
The Hole Hawg features in Neal Stephenson's essay "In the Beginning was the Command Line". http://artlung.com/smorgasborg/C_R_Y_P_T_O_N_O_M_I_C_O_N.shtml ".. At some point, the drill bit caught in th
/archives//html/Towertalk/2009-10/msg00220.html (8,804 bytes)

3. Re: [TowerTalk] Reply - KW3000 with 1/2 inch Drill Motor - Wrongassumption in responses (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Thu, 15 Oct 2009 06:30:58 -0700
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 yours
/archives//html/Towertalk/2009-10/msg00222.html (15,545 bytes)

4. Re: [TowerTalk] Reply - KW3000 with 1/2 inch Drill Motor - Wrongassumption in responses (score: 1)
Author: "Dubovsky, George" <George.Dubovsky@andrew.com>
Date: Thu, 15 Oct 2009 08:42:20 -0500
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 com
/archives//html/Towertalk/2009-10/msg00223.html (16,672 bytes)

5. Re: [TowerTalk] Reply - KW3000 with 1/2 inch Drill Motor - Wrongassumption in responses (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Thu, 15 Oct 2009 08:13:28 -0700
The idea of the PWM method is that you have full torque when on, but are not on all the time. You do lose horsepower, but not torque, AFAIK. It's similar to pulsing the ON/OFF switch on the drill. I
/archives//html/Towertalk/2009-10/msg00224.html (9,759 bytes)

6. Re: [TowerTalk] Reply - KW3000 with 1/2 inch Drill Motor - Wrongassumption in responses (score: 1)
Author: Dennis Vernacchia <n6ki73@gmail.com>
Date: Thu, 15 Oct 2009 12:36:07 -0700
Rick, I was told by a friend who is knowledgeable about the subject that yes, the drill converts AC to DC so not a candidate for Pulse Width Motor Speed Controller I need something off the shelf as I
/archives//html/Towertalk/2009-10/msg00226.html (10,576 bytes)

7. Re: [TowerTalk] Reply - KW3000 with 1/2 inch Drill Motor - Wrongassumption in responses (score: 1)
Author: jimlux <jimlux@earthlink.net>
Date: Thu, 15 Oct 2009 19:17:26 -0700
I noticed in one of the trade rags recently (I can't recall which) that you can get single phase in, 3 phase out, variable frequency drives for small motors in the $100 range. They're not the totally
/archives//html/Towertalk/2009-10/msg00236.html (10,769 bytes)

8. Re: [TowerTalk] Reply - KW3000 with 1/2 inch Drill Motor - Wrongassumption in responses (score: 1)
Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>
Date: Thu, 15 Oct 2009 23:05:27 -0400
Even then, under a heavy load excessive heating is likely. 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
/archives//html/Towertalk/2009-10/msg00237.html (18,415 bytes)

9. Re: [TowerTalk] Reply - KW3000 with 1/2 inch Drill Motor - Wrongassumption in responses (score: 1)
Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>
Date: Thu, 15 Oct 2009 23:10:36 -0400
You still lose average torque. The motor has inertia and when hit with a series of pulses you still have a heating problem under load. Which can also lead to excessive heating. 73 Roger (K8RI) ______
/archives//html/Towertalk/2009-10/msg00238.html (11,902 bytes)


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