BOXFORD lathe part

Hello

I've just purchased a BOXFORD lathe. It's in good order however, the tailstock lock bolt with handle / knob is missing.

Q. does anyone have a spare they could sell me please or, could make one for me ?

New to this web forum. If you need photos, please let me know.

Kind regards

Howard

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Hi Howard,

The lock bolt I think has some form of eccentric upon the shaft.

Boxford do list them as a spare **LINK** but they are not cheap.

Regards, Nick

Try G&M Tools in Sussex. It won't be listed on their Website but they tend to have quite a few Boxford bits kicking around. They advertise on here (see right). Nick.

Howard it would help if you said what Boxford you have as there are several types about. Nick's for example is bigger than most MEs tend to use.

Hi Gents

Many thanks for your help.

The lathe is a 3656 mk1. [see photos]

It would be good if anyone who has a lathe of this type could just unscrew the item and take a photo of iot so we'd know what it looks like in the event that I need to either make or, have one made.

Wow, that's the shiniest Model A I have ever seen. The part you seem to want is the barrel lock not the tailstock lock which makes a difference and the tailstock is a slightly later version than original I suspect as it isn't using the split barrel body lock method.

As that is newer than mine I don't know what the missing part dimensions are however someone might be able to post a picture and you should research 'split cotter shaft lock' to find out the principle of the part you need to make.

Edited By Nick_G on 30/07/2016 11:49:50

Howard, it is just a 5/16 BSW bolt 1.5" long. You can make it fancy with a knob on top, but that is all it is.
BobH

I think there is a bit more to it. The working parts are 397 and 398 forming a split cotter. They might still be in there but I suspect they went missing when it was stripped for painting.
If nobody else comes up with details I may be able to provide photo and dimensions tomorrow evening. In the meantime you need to measure the hole and buy some brass about that size or bigger.

I suggest you also join the Yahoo Boxford group and your local ME club.

Howard,

It looks like a standard Boxford tailstock, if so the parts you need are easily made.

1. a 2¼" length of 5/16" steel rod (round bar), threaded 5/16" BSW at each end, one end threaded for 5/8", the other for 7/8". The shorter thread screws into the bottom of the hole in the casting.

2. a 3/4" length of 5/8" dia phosphor bronze or brass, drilled through clearance for the threaded rod, with a corner cut off.

3. a ball handle tapped 5/16" BSW, or a nut and spanner.

see below. The rod is screwed into the base of the hole in the casting, the PB/Brass piece (sliding cotter) slides over it with the cutaway down and inwards and the handle/nut presses it down. There is a "window" inside the casting into which the barrel protrudes and the sliding cotter presses on the barrel through it. There is only one sliding cotter, the form for the second cotter is machined inside the casting

Despite people telling me how I can never get to put text after my pictures, or other pics in the right order, nor can I remember where to look it up.

So here's another pic, look carefully down the 'ole and you can just see the "window" mentioned previously.

Before starting work check the size of the hole in your casting just to be sure it is the same as the dims. above.

BTW, I had stripped down my tailstock a while ago to repaint it and fit a new nut. Needless to say this has yet to be done!

Do as Boxford do and ignore the prices on the Boxford website. I wanted a tailstock eccentric shaft - it was listed about £35 on their website at the time, only last year I think it was. But when I made direct contact the price rose to  £133 + delivery + VAT.

I ended up making one.

Cheers,

Mike

Edited By Mike Clarke on 30/07/2016 19:14:50

Hi Gents

Many thanks for your explanations and help, really appreciated.

Now I understand what this lock consists of, as you suggested I'll get some brass bar and make the items myself.

Being new to this forum I must say, it's brilliant to find such helpful people willing to share both knowledge and time.

When I've completed the parts, I'll photograph them and share with you all.

Again, thank you for your help.