Myford super 7 cross slide nut specification thread imperial

[Annetta McgroryParticipant @annettamcgrory78398]

Can anyone help I am trying to find out the thread etc of the cross slide of myford super 7. Can anyone give the tpi and dimension for feedscrew or where you can get new nuts ??

[Annetta McgroryParticipant @annettamcgrory78398]

[not done it yetParticipant @notdoneityet]

Tried myford.co.uk?

[SteviegtrParticipant @steviegtr]

Yes Myford have them i think. Look on there site

Steve.

[Annetta McgroryParticipant @annettamcgrory78398]

Thanks both.

They dont have any and you cant get the tap I have looked but wanted to know what the tpi etc was as dont seem to be able to find acme tap for it

[D HannaParticipant @dhanna35823]

Posted by Annetta Mcgrory on 21/07/2020 23:16:15:

Thanks both.

They dont have any and you cant get the tap I have looked but wanted to know what the tpi etc was as dont seem to be able to find acme tap for it

3/8 x 10 tpi Acme right hand. I think RGD have taps on fleabay.

Edited By D Hanna on 22/07/2020 00:12:38

[HopperParticipant @hopper]

As may Tracy Tools.

Could be a tough one to tap from scratch. You might screwcut it first and finish with a tap.

[ianjParticipant @ians]

"Home and workshop machinery" have both Imperial and Metric feed screw + nut available.

Home and workshop machinery

[Andrew FiderkiewiczParticipant @andrewfiderkiewicz32869]

Posted by Hopper on 22/07/2020 04:47:32:

As may Tracy Tools.

Could be a tough one to tap from scratch. You might screwcut it first and finish with a tap.

Yes, Tracy Tools do have the relevant tap (I have no connection with them save that I live a mile or so from their place!).

I have a worn cross slide feed nut and I have a mind to try to fabricate a replacement as the feed screw is relatively ok. Has anybody any experience, that they could share, of doing so and would it be the same for the top slide feed nut?

Thanks

[HopperParticipant @hopper]

I would rough it out by screwcutting in the lathe first then finish it off with a tap. Tapping from scratch can be tough on those chunky threads. Even if you rough it out as a basic square thread will help.

[Andrew FiderkiewiczParticipant @andrewfiderkiewicz32869]

Hopper, Thanks for the tip!

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