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SL1000 / DB200 Parts needed

 

I'm in need of a couple items and reaching out to see if anyone here might be of help.

I'm looking for a single jaw for a 4-jaw chuck (where there more than one type sold and do I need to match a particular model?)



I'm also in need of a new tail stock double threaded screw.


Thanks,
-Brad
 

On Sun, Sep 15, 2024 at 12:43 AM, Brad Barton wrote:
I'm also in need of a new tail stock double threaded screw.
I'd think about making the tailstock screw. The smaller thread is standard M5, so dies are available, and the larger thread is M8 × 1, left handed - again dies are available, but you have to search a bit more. Also you can find sellers of M8 × 1 LH lead screws from or for Unimats on Ebay, so I think you could just cut the end off one of them and use it. Possibilities.
 

I'd think about making the tailstock screw. The smaller thread is standard M5, so dies are available, and the larger thread is M8 × 1, left handed - again dies are available, but you have to search a bit more. Also you can find sellers of M8 × 1 LH lead screws from or for Unimats on Ebay, so I think you could just cut the end off one of them and use it. Possibilities.
Thanks for the reply! It might come to that if I don't fine one.
-Brad
 

Why spend money on taps and dies you when you can cut your own by single point thread cutting? You will also end up with a superior result if you are careful. A challenge is also good for the brain and a chance to learn a new skill. Take your time, this is a hobby not a speed test.
Just my 2 cents worth!!
Dick




On Monday, September 16, 2024, 3:12 PM, Brad Barton via groups.io <xbartx@...> wrote:

I'd think about making the tailstock screw. The smaller thread is standard M5, so dies are available, and the larger thread is M8 × 1, left handed - again dies are available, but you have to search a bit more. Also you can find sellers of M8 × 1 LH lead screws from or for Unimats on Ebay, so I think you could just cut the end off one of them and use it. Possibilities.
Thanks for the reply! It might come to that if I don't fine one.
-Brad

--
http://www.homemadetools.net/forum/?OFF-SET-tailstock-center-65965#post105972
?SMALL TURRET TOOL POST PLANS?
?LARGE TURRET TOOL POST PLANS
?MINI-LATHE CARRIAGE LOCK PLANS
?SMALL QC TOOL POST PLANS?
?QUICK CHANGE LATHE TURRET
?MINI LATHE COMPOUND PIVOT MODIFICATION
Andrei
 

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Depends.

There are some holes that are too small to single point thread on some lathes.

Granted, that well done single point is much more accurate than most taps and dies.

Get

From: [email protected] <[email protected]> on behalf of OldToolmaker via groups.io <old_toolmaker@...>
Sent: Tuesday, September 17, 2024 8:55:48 AM
To: [email protected] <[email protected]>; [email protected] <[email protected]>
Subject: Re: [Unimat] SL1000 / DB200 Parts needed
?
Why spend money on taps and dies you when you can cut your own by single point thread cutting? You will also end up with a superior result if you are careful. A challenge is also good for the brain and a chance to learn a new skill. Take your time, this is a hobby not a speed test.
Just my 2 cents worth!!
Dick




On Monday, September 16, 2024, 3:12 PM, Brad Barton via groups.io <xbartx@...> wrote:

I'd think about making the tailstock screw. The smaller thread is standard M5, so dies are available, and the larger thread is M8 × 1, left handed - again dies are available, but you have to search a bit more. Also you can find sellers of M8 × 1 LH lead screws from or for Unimats on Ebay, so I think you could just cut the end off one of them and use it. Possibilities.
Thanks for the reply! It might come to that if I don't fine one.
-Brad

--
http://www.homemadetools.net/forum/?OFF-SET-tailstock-center-65965#post105972
?SMALL TURRET TOOL POST PLANS?
?LARGE TURRET TOOL POST PLANS
?MINI-LATHE CARRIAGE LOCK PLANS
?SMALL QC TOOL POST PLANS?
?QUICK CHANGE LATHE TURRET
?MINI LATHE COMPOUND PIVOT MODIFICATION

 

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Hi Gang:

Since I received a thread cutting lathe (Smithy Granite) I have tapped thousands of hole, but only set the lathe up once for threading. And that was to guide a tap through an intermittent hole.

Tapping is one of the fastest way to add a thread to a part. Thread milling might have the possibility of being more accurate, but that depends on your CNC machine.

For external threads I keep a stock of threaded rod on hand. So to approach the tailstock screw I would tap the end of some M8x1 LH for the M5 RH and Loctite it in place, or cross pin it.

Is there a way to cut LH threads on the Unimat? Did they ever make LH masters?

Carl.

On 9/17/2024 8:55 AM, OldToolmaker via groups.io wrote:

Why spend money on taps and dies you when you can cut your own by single point thread cutting? You will also end up with a superior result if you are careful. A challenge is also good for the brain and a chance to learn a new skill. Take your time, this is a hobby not a speed test.
Just my 2 cents worth!!
Dick
 

Hi Carl!
I use a threaded left hand bolt or rod from the hardware store as a master. Diameter is irrelevant as it’s the lead you are after, not the diameter.
Dick




On Tuesday, September 17, 2024, 8:07 AM, Carl via groups.io <carl.blum@...> wrote:

Hi Gang:

Since I received a thread cutting lathe (Smithy Granite) I have tapped thousands of hole, but only set the lathe up once for threading. And that was to guide a tap through an intermittent hole.

Tapping is one of the fastest way to add a thread to a part. Thread milling might have the possibility of being more accurate, but that depends on your CNC machine.

For external threads I keep a stock of threaded rod on hand. So to approach the tailstock screw I would tap the end of some M8x1 LH for the M5 RH and Loctite it in place, or cross pin it.

Is there a way to cut LH threads on the Unimat? Did they ever make LH masters?

Carl.

On 9/17/2024 8:55 AM, OldToolmaker via groups.io wrote:
Why spend money on taps and dies you when you can cut your own by single point thread cutting? You will also end up with a superior result if you are careful. A challenge is also good for the brain and a chance to learn a new skill. Take your time, this is a hobby not a speed test.
Just my 2 cents worth!!
Dick

--
http://www.homemadetools.net/forum/?OFF-SET-tailstock-center-65965#post105972
?SMALL TURRET TOOL POST PLANS?
?LARGE TURRET TOOL POST PLANS
?MINI-LATHE CARRIAGE LOCK PLANS
?SMALL QC TOOL POST PLANS?
?QUICK CHANGE LATHE TURRET
?MINI LATHE COMPOUND PIVOT MODIFICATION
 

I found the tail stock double threaded screw on ebay for a reasonable price, thanks for all the replies!
Now just need to find a replacement single jaw for the 4-jaw chuck?
-Brad
Andrei
 

开云体育

It will probably be easier to find a whole chuck than just one jaw.

Get

From: [email protected] <[email protected]> on behalf of Brad Barton via groups.io <xbartx@...>
Sent: Tuesday, September 17, 2024 2:12:05 PM
To: OldToolmaker <old_toolmaker@...>; [email protected] <[email protected]>
Subject: Re: [Unimat] SL1000 / DB200 Parts needed
?
I found the tail stock double threaded screw on ebay for a reasonable price, thanks for all the replies!
Now just need to find a replacement single jaw for the 4-jaw chuck?
-Brad
 

On Tue, Sep 17, 2024 at 11:13 AM, Andrei wrote:
It will probably be easier to find a whole chuck than just one jaw.
You are probably right, but it doesn't hurt to ask.
?

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