A Boxford Model A Lathe

[Stu Towner]

Hello I'm new here, can someone tell me please how to unlock the cross slide so I can bore a tapered hole? I see a threaded hole but no slot or grubscrew to unlock it. Thanks

 

[SmithDoor]

You remove the screw that holds the cross slide nut.
If it home made taper it take more work.
I have south bend 9A which very close to Boxford A

Dave

Hello I'm new here, can someone tell me please how to unlock the cross slide so I can bore a tapered hole? I see a threaded hole but no slot or grubscrew to unlock it. Thanks

 

[Stu Towner]

Thanks Dave,
Sorry to be thick but is it up the hole I've marked with a red arrow please? This is not my lathe but one off the net.
Thanks Stu

 

[Stu Towner]

You remove the screw that holds the cross slide nut.
If it home made taper it take more work.
I have south bend 9A which very close to Boxford A

Dave

Thanks Dave but I've sussed it out thanks. Hope for a better New Year Stu

 

[SmithDoor]

It looks like building a taper attachment.
The feed screw nut is a plug type.
You to make cross slide nut removable or the cross slide and remove the nut.

Dave

Thanks Dave but I've sussed it out thanks. Hope for a better New Year Stu

 

[Stu Towner]

It looks like building a taper attachment.
The feed screw nut is a plug type.
You to make cross slide nut removable or the cross slide and remove the nut.

Dave

Thank you for your reply. Stu

 

[SmithDoor]

Thank you for your reply. Stu

As soon as saw photo I saw your problem.

Here some files that will here you.

Dave

 

[terryd]

Hello I'm new here, can someone tell me please how to unlock the cross slide so I can bore a tapered hole? I see a threaded hole but no slot or grubscrew to unlock it. Thanks

Hello Stu,

First I'd suggest that you also join the Boxford user group on io.com there's a huge amount of help, as well as many useful files stored on that friendly group here:

BoxfordLathe-UserGroup groups.io Group

When you say 'to turn a taper' do you mean that you have a taper turning attachment for the lathe or not?

If it is a short taper. up to abour 3" (75mm) most folk set the cross slide over using the graduated ° ring. This is done by loosening two grub screws on the side of the saddle casting.

The hole you have arrowed is for fixing a device to register the toolpost when turning threads. Here is a picture scanned from the Boxford Handbook (Know Your Lathe) showing the attachment in use, It clamps to the dovetail on the saddle - I've indicated it with a white ellipse - and allows the tool to be withdrawn when rewinding the saddle and then resetting to depth by winding back in to the stop, the screw head acting as the stop - easier to understand when seen in action of course.

Threading stop clamped to the saddle cross slide​

I use the adjustable cross slide method for turning morse tapers, carburettor and gas jet needles etc . There are two grub screws are on the side of th saddle cross slide as in the image below. You can just see the Left hand screw and there is another on the right hand side of the saddle cross slide casting which is obscured by the compound slide but is in the same position as the LH one, I've indicated the positions with the red circles. Just loosen these and the compound slide can be rotated to the correct angle and then locked in position with the same screws.

Compound slide locking screws​

Longer tapers are usually cut using an attachment which replaces the normal cross slide and fastens to a sliding bracket fixed to the rear of the lathe as shown below. I have never used mine.

Using a taper turning attachment​

Best regards for the New year, a bit long winded but I hope that helps and look forward to seeing you on the Boxford users site (free to register and use.)

TerryD

 

[SmithDoor]

If look your photo you see a screw in center of cross slide this screw your remove. The compound is used for feed.

View attachment 121736

Dave

View attachment 121736

Using a taper turning attachment​

Best regards for the New year, a bit long winded but I hope that helps and look forward to seeing you on the Boxford users site (free to register and use.)

TerryD

 

[terryd]

If look your photo you see a screw in center of cross slide this screw your remove. The compound is used for feed.

View attachment 121736

Dave

That is only if you are turning long shallow tapers using the attachment, which I haven't done for many years (I used to use these machines for teaching Workshop Engineering before I retired), and I think that Stu was talking about shorter tapers which are turned using the compound slide when rotated to the correct angle.

Best regards TerryD

 

[SmithDoor]

You maybe right
Which is right were you show removing or adjusting the compound

Dave

That is only if you are turning long shallow tapers using the attachment, which I haven't done for many years (I used to use these machines for teaching Workshop Engineering before I retired), and I think that Stu was talking about shorter tapers which are turned using the compound slide when rotated to the correct angle.

Best regards TerryD

 

[Stu Towner]

Hello Stu,

First I'd suggest that you also join the Boxford user group on io.com there's a huge amount of help, as well as many useful files stored on that friendly group here:

BoxfordLathe-UserGroup groups.io Group

When you say 'to turn a taper' do you mean that you have a taper turning attachment for the lathe or not?

If it is a short taper. up to abour 3" (75mm) most folk set the cross slide over using the graduated ° ring. This is done by loosening two grub screws on the side of the saddle casting.

The hole you have arrowed is for fixing a device to register the toolpost when turning threads. Here is a picture scanned from the Boxford Handbook (Know Your Lathe) showing the attachment in use, It clamps to the dovetail on the saddle - I've indicated it with a white ellipse - and allows the tool to be withdrawn when rewinding the saddle and then resetting to depth by winding back in to the stop, the screw head acting as the stop - easier to understand when seen in action of course.

View attachment 121744

Threading stop clamped to the saddle cross slide​

I use the adjustable cross slide method for turning morse tapers, carburettor and gas jet needles etc . There are two grub screws are on the side of th saddle cross slide as in the image below. You can just see the Left hand screw and there is another on the right hand side of the saddle cross slide casting which is obscured by the compound slide but is in the same position as the LH one, I've indicated the positions with the red circles. Just loosen these and the compound slide can be rotated to the correct angle and then locked in position with the same screws.

View attachment 121743

Compound slide locking screws​

Longer tapers are usually cut using an attachment which replaces the normal cross slide and fastens to a sliding bracket fixed to the rear of the lathe as shown below. I have never used mine.


View attachment 121736

Using a taper turning attachment​

Best regards for the New year, a bit long winded but I hope that helps and look forward to seeing you on the Boxford users site (free to register and use.)

TerryD

Thank you guys, yes I found the two grub screws - I was looking in the wrong place. Happy New Year to one and all. Stu