Modifications to a Myford ML7R

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Bob Minchin - 11 Jul 2009 20:42 GMT

I have a ML7R which is essentially a standard ML7 fitted with a super7
headstock and tailstock introduced by Myford in the late 70s.

I'm becoming ever more frustrated by the limited range of angles that
the topslide can be rotated (+/- 45 degrees). I am considering imitating
the Super 7 design by fitting a dovetailed collar on the base of the
topslide, boring out the cross slide table and drilling and tapping the
table sided for clamp screws.
To complete the changes, I will fit a smaller diameter micrometer dial
on the topslide so that it does not foul the cross slide feedscrew
support bracket.

I can't see any snags in this plan but can anyone else spot a flaw or
even better still, has anyone attempted such a change and can pass on
their experiences.

Can anyone tell me the diameter of the bore in the Super 7 table.

TIA

Bob

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Kevin(Bluey) - 12 Jul 2009 02:16 GMT

> I have a ML7R which is essentially a standard ML7 fitted with a super7
> headstock and tailstock introduced by Myford in the late 70s.
[quoted text clipped - 17 lines]
>
> Bob

The table bore on my S7 measures 1.880".
Mine is of 60's vintage if that makes any difference.

Signature

Kevin (Bluey)
"I'm not young enough to know everything."

bluey69@west.net.com.au

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Bob Minchin - 12 Jul 2009 06:58 GMT

>> I have a ML7R which is essentially a standard ML7 fitted with a super7
>> headstock and tailstock introduced by Myford in the late 70s.
[quoted text clipped - 20 lines]
> The table bore on my S7 measures 1.880".
> Mine is of 60's vintage if that makes any difference.

Thanks Kevin

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jackary - 12 Jul 2009 11:11 GMT

Hi Bob ,
This is probably more work than you may be prepared to do, but I made
a new topslide & filled in the holes on the Myford topslide and cut
two shallow grooves enabling the topslide to move all over the cross
slide & be locked at any angle.
http://s107.photobucket.com/albums/m287/jackary2003/?action=view&current=PICT0016.jpg
Regards
Alan

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Bob Minchin - 12 Jul 2009 12:36 GMT

> Hi Bob ,
> This is probably more work than you may be prepared to do, but I made
[quoted text clipped - 4 lines]
> Regards
> Alan

An interesting approach Alan but perhaps more than I need in my current
work aspirations.

Thanks anyway

Bob

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Model Forum / General / Models / July 2009

Modifications to a Myford ML7R