Ml7 toolpost

[von dutchParticipant @vondutch]

Hi there,does anyone know the dimensions of the base of the tool post stud on a ml7,as in the part that goes up into the topslide not the shaft or thread size.Im fitting a quick change toolpost and the stud is different,so am going to turn up a base to press into the bottom of topslide threaded to suit new stud,if anyone knows the diameter would save me having to take it apart and back together before I make it!

[von dutchParticipant @vondutch]

[egaParticipant @ega]

I have just measured the flange of a similar part at 0.8935" diameter. The flange is 0.220" thick.

I think these studs are a light press fit as standard but am doubtful about the idea of making it by "dead reckoning".

[von dutchParticipant @vondutch]

Ok chap,when you say similar part,it wasn't an ml7 toolpost stud then?,Ill probably take it apart and have a look just thought someone might no actual size.

[Richard S2Participant @richards2]

ML7 tool post base measurements of mine are 0.8735" x 0.192" thickness. The dowel pin is 0.081" diameter.

It is on a PCD of 0.3135" on mine, so nominally 5/16" (0.3125). The pin height is 0.2187" or about 5.5mm-

This is a 1949 model, the dowel pin size is wire/number size 46. Later Myfords may have different size pin.

And I've gone to the effort of providing an image-

[Roderick JenkinsParticipant @roderickjenkins93242]

Not sure if this is relevant but on my S7 the hole in the QCTP is much larger than the stud in the topslide.

The kit included a top hat washer

This works very will, no movement of the QCTP when tightened down.

HTH,

Rod

[JasonBModerator @jasonb]

Posted by von dutch on 14/07/2021 10:23:22:

Im fitting a quick change toolpost and the stud is different,so am going to turn up a base to press into the bottom of topslide threaded to suit new stud,

If your new toolpost came with a 10mm stud then the 7/16" diameter to fit the Myford ends up quite thin after being tapped M10 so it's usual to make a complete new stud or buy one along these lines

[von dutchParticipant @vondutch]

Thank you people's for all your information very helpful that is why I come on here,I will either make my own or may order above part.Many thanks to "Richard S2" as well for dimensions and pic,mine also is a 1950 ml7.

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