[TheForge] Any recommendations on cutoff saws? Brands, etc?

[Rick]

OK guys - I uploaded it to the Photoaccess site under the "Anything Else" 
folder.  It is a jpg of my drawing for this wiring diagram and is named 
SimplestRopeStart.jpg.  This is the simplest rope start that you can do. 
Even I got it to work (after my boss sent me a copy of this wiring diagram 
so I would be able to understand what he meant.)

It works because while single phase will not start a 3 phase motor, it will 
run it if it gets started some other way.  The rope start and then turn on 
the power while it is spinning, gets it going and then it will run.  Once it 
is running, you can run a motor of about 2/3 the size from it and it will 
start and run just like it should.  The reason for the 2/3 is that that is 
the power it takes to start over just running.  With this system, I can use 
the switch on my lathe just as if I had 3 phase coming in.

Rick Crawford at Rafter Lazy C
  Home of Smoky Forge and Lem the Wonder Mule
   In the middle of Northern Illinois

    http://www.smokyforge.com
     rick at smokyforge.com


----- Original Message ----- 
From: "David Childress" <trollkeep at gmail.com>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Monday, August 28, 2006 3:00 PM
Subject: Re: [TheForge] Any recommendations on cutoff saws? Brands, etc?


>I would be interested in seeing a wire diagram.
>
> David Childress
>
> On 8/28/06, Rick <rick at smokyforge.com> wrote:
>> Hi Frosty -
>>
>>    You said 3 phase is a lot of money, but you can make a very simple
>> rotary phase converter.  Made from an old 3 phase motor that you rope 
>> start,
>> it will provide the 3 phase for a smaller motor.  I have a 1 hp motor on 
>> my
>> lathe and it is 3 phase.  I got a 3 hp 3 phase motor given to me and I 
>> rope
>> start it, it jsut sits there idling, not using hardly any electricity, 
>> and
>> providing the 3 phase to run the lathe.  Works really well.  It seems 
>> older
>> 3 phase motors are really cheap and sometimes given away.  As long as you
>> don't try to run a motor over about 2/3 the size of your idler, it should
>> work fine.  Later if you want to, you can add capacitors, and electronics 
>> to
>> make it a full converter that wouldn't require rope start.
>>
>>    If you wish I can post my wiring diagram of my system.
>>
>> Rick Crawford at Rafter Lazy C
>> Home of Smoky Forge and Lem the Wonder Mule
>>   In the middle of Northern Illinois
>>
>>    http://www.smokyforge.com
>>     rick at smokyforge.com
>>
>>
>> ----- Original Message -----
>> From: "Jerry Frost" <frosty at customcpu.com>
>> To: "Sponsored by ABANA" <theforge at mailman.qth.net>
>> Sent: Sunday, August 27, 2006 11:36 PM
>> Subject: Re: [TheForge] Any recommendations on cutoff saws? Brands, etc?
>>
>>
>> >
>> > From: "Jerry Frost" <frosty at customcpu.com>
>> >
>> >
>> >> a few seconds but it's a 3hp. 2ph. moose. I don't even
>> >
>> > That was supposed to read 3hp. 3ph. NOT 2ph.
>> >
>> >
>> >
>> > Geeze I HATE having to reply to my own posts!
>> >
>> > <sigh>
>> >
>> > Frosty
>> > -------------------------------
>> > If it ain't forged
>> > it ain't real.
>> > Wrought iron is.
>> > The FrostWorks
>> >
>> > Meadow Lakes, AK.
>> >
>> > http://www.artmetalradio.com/
>> >



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