ML7

[john brown 17Participant @johnbrown17]

Hi all , with regard to the ml7 cross slide nut mine is showing signs of in need of a new one ,but it seem imperial ones are out of stock apart from the super 7 and l take it they would not fit ,now has anyone made one before ,yes l know l would have to buy a tap when l no what the thread size is,or do l wait untill they are back in stock ?,will be led by you experts.

john

[john brown 17Participant @johnbrown17]

[SteviegtrParticipant @steviegtr]

Are you sure it is the nut. My super 7 had quite a bit of play which i wrongly assumed was wear in the nut. Once i had re-bushed the handwheel carriage support, the play went away.

Steve.

[not done it yetParticipant @notdoneityet]

New nut? Why not repair the one you have? Easily done, although a bit tight if single pointing the thread.

[john brown 17Participant @johnbrown17]

Will have a better look later at the bushing steve and se if it could be that good point

john

[Andrew Moyes 1Participant @andrewmoyes1]

My Super 7 has a 1/2" x 10tpi RH Acme thread on the cross slide. I believe the ML7 may be 3/8" X 10tpi. Tracy Tools sell 3/8", 7/16" and 1/2" taps of that form and pitch.

[john brown 17Participant @johnbrown17]

Well it seems steve was on the money the bushing is well worn ,and putting in the screw in to the nut there seems not to be any lash on that ,but did find the nut was loose as well ,so that was not helping matters,so will re bush the housing and go from there ,well l am at it will re bush the carrage handle.

john

[V8EngParticipant @v8eng]

arceurotrade (advert near top right on this page) do a modification kit for the ML7 cross slide handle which makes  operating it much better.

There is some machining required to fit the parts so I’ve linked to the details here:-

Arc ML7 Mods

Edited By V8Eng on 31/01/2021 13:33:53

[john brown 17Participant @johnbrown17]

Thanks v8eng ,yes did se that mod ,but for now its going to be a quick fix bush job as the mod kit is out of stock,but think l will order one when back in.

john

[SteviegtrParticipant @steviegtr]

Posted by john brown 17 on 31/01/2021 12:49:43:

Well it seems steve was on the money the bushing is well worn ,and putting in the screw in to the nut there seems not to be any lash on that ,but did find the nut was loose as well ,so that was not helping matters,so will re bush the housing and go from there ,well l am at it will re bush the carrage handle.

john

John this is how i did it.

Steve.

Myford 7 re bushing

[john brown 17Participant @johnbrown17]

Steve very good video ,very clear to follow ,thanks.

john

[Phil H1Participant @philh196021]

The arc conversion looks nice but it says that it won't work on a Super 7 lathe. Does anybody know of a Super 7 equivalent modification?

[Author]

Posts