Author Topic: SB 9 Rebuild  (Read 125951 times)

Offline swilliams

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Re: SB 9 Rebuild
« Reply #15 on: August 26, 2012, 03:55:35 AM »
A nice straight bed is a great feature to have in a lathe. This should be a beauty when it's all finished Dave

Steve

Offline steamer

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Re: SB 9 Rebuild
« Reply #16 on: August 26, 2012, 03:58:17 AM »
I'm hoping Steve....with the basic precision...and the added attachments....she'll be hard to beat.

Dave
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Online Dan Rowe

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Re: SB 9 Rebuild
« Reply #17 on: August 26, 2012, 04:10:42 AM »
Dave,
What makes the the grinders in Illinois worth the extra cost of shipping the bed that far?

Dan
ShaylocoDan

Offline steamer

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Re: SB 9 Rebuild
« Reply #18 on: August 26, 2012, 12:28:15 PM »
The price...and word of mouth on ability to do the job.

Around my area....the price is VERY high....(extortion too high)....and they've never done a Southbend before.

This guy has......so I have to spend some money to ship it.

Dave
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Offline steamer

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Offline Don1966

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Re: SB 9 Rebuild
« Reply #20 on: September 03, 2012, 01:25:28 AM »
Dave you can get them a lot cheaper then that. This is where I bought mine. http://dealerselectric.com/mfgr.asp?mID=14 at $119 plus freight.

Don
« Last Edit: September 03, 2012, 01:28:47 AM by Don1966 »

Offline steamer

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Re: SB 9 Rebuild
« Reply #21 on: September 03, 2012, 01:54:47 AM »
Thanks Don!   I'll look into that!

Dave
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Offline swilliams

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Re: SB 9 Rebuild
« Reply #22 on: September 03, 2012, 01:57:23 AM »
Yep that's the type of thing. I think the one you linked to is vectorised, which you don't absolutely need. I'd go at least 3/4 HP, you'll need it when you slow the thing down and you normally loose about 20% of your power due to the rough approximation they make for the AC sin wave.

You'll also need a 230V 3 phase motor. Here at least 3 phase is usually 415, which gives 240 upon switching from Star to Delta wound.

Anyway, I've got to get back to work

Steve

Offline steamer

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Re: SB 9 Rebuild
« Reply #23 on: September 03, 2012, 02:02:07 AM »
Thanks Steve and Don!   Don did you get your motor there too?

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
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Offline steamer

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Re: SB 9 Rebuild
« Reply #24 on: September 03, 2012, 02:13:41 AM »
Just picked up a MT2 tailstock die holder for the SB today...along with the Keats...

Dave
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Offline Don1966

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Re: SB 9 Rebuild
« Reply #25 on: September 03, 2012, 02:53:47 AM »
Yea Dave, both at the same dealer. I bought the 120v input, 1phase ,1hp drive for my bandsaw. The motor cost more then the drive.
Just picked up a MT2 tailstock die holder for the SB today...along with the Keats...
Dave

Need to get me one. I have to wait a while, just pick up four jaw chuck and adapter plate, and 4"angle plate for my Myford. Plus a 5C indexer with collets. I want the 5C collet chuck next.

Don

Offline swilliams

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Re: SB 9 Rebuild
« Reply #26 on: September 03, 2012, 03:44:43 AM »
Another place (option) you can get drives from is automation direct

http://www.automationdirect.com/adc/Shopping/Catalog/Drives/GS1_%28120_-z-_230_VAC_V-z-Hz_Control%29/GS1_Drive_Units_%28120_-z-_230_VAC%29

I have one of their 1HP drives running a 3/4 HP motor on my milling machine, which I'm happy with.

You probably already know this but you can change most modern 3 phase motors from star to delta config by swapping some external connections over.  This will reduce the required voltage by a factor of 1/sqrt(3) = 0.57735. Here this drops 415V to 240V which is just what you need for this application. I don't know what the situation is in the states, but the factor of 1/sqrt(3) stands regardless. Often you can do a bit of hacking and soldering on motors that are hard wired as star-config, something I've had to resort to.


BTW - I think I was wrong stating that that WEG drive is vectorised, not sure why they cost more, but the situation is similar over here.

Steve

Offline Don1966

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Re: SB 9 Rebuild
« Reply #27 on: September 03, 2012, 03:55:40 AM »
Steve it is the same here, however most motors we buy here are dual voltage rating. So reconnecting is just a matter of changing the nine lead configuration. Some foreign made motors exist here and are six lead motor and star delta configured for dual voltage.
By the way the Teco drive is a vector drive if I remember correctly.
I also checked out automation directs drives they look exactly like the Teco drives.
Don

Offline swilliams

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Re: SB 9 Rebuild
« Reply #28 on: September 03, 2012, 05:01:16 AM »
Yep - No probs Don

Offline steamer

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Re: SB 9 Rebuild
« Reply #29 on: September 03, 2012, 12:36:37 PM »
This looks attractive from the perspective of 115 volt input....variable speed....ect
http://dealerselectric.com/item.asp?PID=4705


Steve, does this jive with the features you have?

Dave

"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!