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boxford lathe model C info

imperial cross slide thread

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terry cantelo20/04/2017 22:35:00
2 forum posts

Hi all, I am a new to this site and this is my first post. Can anyone please tell me what size and type of thread is used for the cross slide screw. My lathe came to me with this part missing and I would like a friend of mine to make me a new one

Many thanks


Robbo21/04/2017 10:00:18
1438 forum posts
126 photos


IIRC it is a 10 tpi Acme form Left Hand thread. But I can't remember the diameter!

Bear in mind that the model C doesn't have a power cross feed so screws from, say, a model A such as mine is will be a different "shape" to accommodate this.

Hopefully someone with a 'C' will come along when this thread gets back to the top of the list

Robbo21/04/2017 10:08:38
1438 forum posts
126 photos

It is I think 7/16"

Imperial of course

A chap who makes feed nuts and sells them on ebay is -may be useful

not done it yet21/04/2017 10:26:29
1901 forum posts
11 photos


Does it have the lead screw nut? If making both, the thread form and tpi can be anything you want. May be better to stay with the same ring on the machine and remain with the same system (metric or imperial).

terry cantelo21/04/2017 17:23:22
2 forum posts

Thanks for the replies fellas. It has been confirmed as a 7/16"x10 TPI left hand acme thread and its now up to my mate to have a go at making one for me.

Regards Terry

Bob Brown 121/04/2017 19:36:25
965 forum posts
125 photos

It may be worth checking with Boxford to see if a new one is available

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