Since we are talking about my new workbench/tool cabinet I am ready to add a to my Craftsman 12x36 lathe.
I have one on my saw and it works great!
and for $132.49 much cheaper than going 3ph!
Ralph
On Sun, Jan 6, 2019 at 10:47 AM Bill in OKC too via Groups.Io <wmrmeyers= [email protected]> wrote:
It wasn't the Atlas I was talking about there, but its new companion, a South Bend Heavy 10L toolroom lathe. Also known as a gunsmith's lathe. I can see it needing a heavier motor. Uses 5C collets rather than the 3C's Atlas uses. 1-3/8" spindle through hole. Once I? have that running, and with a 3 phase motor & VFD, I may look again at doing it to the Atlas. It has a 1/2hp 1ph motor, IIRC, and it doesn't need to be any heavier, but variable speed would sure be nice. It's a 10F.
All is now clear to me, too! ;)
Bill in OKC
On Sunday, January 6, 2019, 8:42:12 AM CST, cwlathes < carvelw@...> wrote:
Hi Bill, ? That is very curious .
My post war Atlas catalogue lists only 1/3 and ? HP motors ( single and 3 phase ) for the 10¡± lathe ( see below )
I wonder how that came about ¨C maybe one of our more knowledgeable historians can assist :>)
With regard to the VFD , my understanding is that a smaller VFD can drive a larger motor provided the current limit of the VFD is not exceeded, and a larger VFD can drive a smaller motor provided the current limit of the motor is not exceeded ¨C but I speak under correction , ? Keep well, ? Carvel ?
? From: [email protected] [mailto:[email protected]] On Behalf Of Bill in OKC too via Groups.Io
Sent: 06 January 2019 10:55 AM
To: [email protected]
Subject: Re: [atlas-craftsman IO] Finally workbench for my lathe ? Don't know about that. The serial number card says it was shipped with a 3/4hp 1ph 1725 rpm motor. And a 3/4hp VFD might not be able to turn a motor rated for 2hp at all. And the motor is physically large enough it could be a 3HP motor. I don't know a lot about 3phase motors, but I work with them, so have been reading up on them. My equipment that I work on has quite a variety of motors, many 3 phase, and rated from 1/4HP to 60HP. I've still got a lot of parts to derust, paint, and put back together, so I'm not in a great hurry at the moment. Get down to the last couple of parts, it will get more urgent, though, I do suspect! ;) On Sunday, January 6, 2019, 1:48:59 AM CST, cwlathes <carvelw@...> wrote: Morning Bill,
The VFD doesn¡¯t HAVE to be matched to the motor power wise , as long as it can deliver enough power for your needs . . . .
In other words , if you happened to come across a VFD capable of driving a ? HP motor , and your mystery motor was rated at 1HP , all it would mean is that you would be limited to drawing ? of its capacity which would probably be more than adequate given that the original motors for this lathe were 1/3 or ? HP ? Regards, ? Carvel ? From: [email protected] [mailto:[email protected]] On Behalf Of Bill in OKC too via Groups.Io
Sent: 06 January 2019 06:06 AM
To: [email protected]
Subject: Re: [atlas-craftsman IO] Finally workbench for my lathe ? I'm thinking a 3/4hp 3ph motor and VFD for mine, as my 10L originally shipped with a 1725rpm 3/4hp 1ph motor. Everything I've read or heard about the Teco VFD's seem to indicate they're the smart move. Haven't had much luck finding anything for less than about $3-400 for the combination, plus shipping.? The lathe came with a 3ph motor without a data plate. Old but not quite as rusty as the rest of the lathe. I have a contact tachometer so could find out what speed it is, but I'd have to take it to work to get power to test it. Did borrow their megger, no leakage or shorts at 1kv. If I knew what hp it's rated for I could just buy the VFD. I have 220vac power in the shop at one location, could extend it. Or move the lathe to it.? I gave up on my HF tool chest as a stand for my Atlas TH42. It is just a bit too long, and also too wide for the "42 inch" tool box. That is 42 inches including the handle. 40 inches long x 18 inches deep, about a 3/4"lip on back and sides. I got it just before they came out with the 22" deep tool chests, of course. So it's going to be a tool chest. With tools in it. Imagine that! :) The table is one I've mentioned here before. It's 3' x 8', 1/8" steel top, now with 1" of Baltic birch plywood on top of the steel. I need to get the drip pan I told you about from under the Atlas MF Mill and put it under the Atlas lathe. I have a new 2' x 3' drip pan for the mill, and another for the Lewis shaper. I've been planning on putting that on the table with the lathe and mill, but I'm wondering if that is such a good idea. I've only run the shaper once, and promptly took it back off the heavy steel file cabinet I'd mounted it on. Lots of momentum there as the ram moves back and forth. Probably do bad things to the fine finish on a part turned while it was running. :) ? ? On Fri, Jan 4, 2019 at 11:39 PM, Jody So the motor is a Baldor 3 phase 1/2 hp. I picked it up new on ebay for real cheap. It was a steal of a deal and made it much easier to justify the conversion. The original motor was likely going to require a re-wire and rebuild. I have a Teco 1/2 hp size VFD.? I've been real happy with it and the technical support was very helpful with a direct line to technicians.? I called them a few times with wiring and programing questions...and they were very helpful.??
-------- Original message --------
From: mike allen <animal@...>
Date: 1/4/19 10:14 PM (GMT-06:00)
To: [email protected]
Subject: Re: [atlas-craftsman IO] Finally workbench for my lathe
any more info on yer motor & controller ?
??? ??? animal
On 1/4/2019 1:14 PM, Jody wrote:
Bill,
Funny and stupid story, I set mine up with a VFD with fwd/rev,
potentiometer, jog, and E stop.
I tested the E stop and was nevous that the thing would spin off.? I
actually need to make the stop not quite as harsh.? But it didn't
fling off the spindle thankfully.
-Jody
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