[Amps] What is the meaning of ACVFD ?

[Roger (sub1)]

On 7/2/2011 9:54 PM, Gary Schafer wrote:
>
>> -----Original Message-----
>> From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com]
>> On Behalf Of Roger (sub1)
>> Sent: Saturday, July 02, 2011 9:29 PM
>> Cc: amps at contesting.com
>> Subject: Re: [Amps] What is the meaning of ACVFD ?
>>
>> On 7/2/2011 9:00 PM, Carl wrote:
>>> A 10 HP or higher 3 phase motor and a couple of surplus utility
>>> company phasing capacitors is the working mans way to tackle it.
>>>
>>> Since I dont run that much big 3 phase tools and only one at a time, a
>>> 7.5 HP "idler" motor has been used for over 20 years, it draws
>>> negligible power to run. The motor cost $50 and the caps were $5 each.
>>> There is a surplus of 3 phase motors these days and the cost would
>>> likely be scrap value if you shop around.
>> You read my mind.<:-))
>> There are quite a few tool room lathes and mills available at very
>> reasonable prices lately.  They are usually a *tad* large for hobbyists
>> and the market for machine shops has pretty well dried up as that's
>> where most are coming from.  I've been looking at a Bridgeport floor
>> mill with digital readout on all three axises as well as power feed on
>> all three.  I don't remember if it's a 42 or 48" bed.  Weight is *about*
>> 2000#. All 3 phase. I think the main motor is 3 or 4 HP...Might be 5,
>> but I don't think it's that large.   I'm also looking at a tool room
>> lathe with a 7 HP 3 phase motor (60" bed) weight is about 5,000# (give
>> or take)
>>
>> I have to admit I like the thought of a CNC, but virtually all are of
>> the older style and not an advantage for a one or two off project.  The
>> new ones will take the input from my 3-D drafting program and you just
>> have to put in the tool sizes. I'm not at all familiar with the older
>> CNC setups.  New ones are *expensive*
>>
>> 73
>>
>> Roger (K8RI)

> What are you seeing for prices on those machines Roger?


The ones I've been looking at have been in the 2 to 3 grand range.

73

Roger (K8RI)
> 73
> Gary K4FMX
>
>