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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

Terry

Robbo21/04/2017 10:00:18
1231 forum posts
120 photos

Terry

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
1231 forum posts
120 photos

It is I think 7/16"

Imperial of course

A chap who makes feed nuts and sells them on ebay is steveboy.butler@googlemail.com -may be useful

not done it yet21/04/2017 10:26:29
865 forum posts

Terry,

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
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945 forum posts
120 photos

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

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