email: tony@lathes.co.uk
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Myford VM-A
Milling Attachment

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Introduced in 1988 the VM-A milling attachment was manufactured by Rishton and intended for bolting to the back of the bed on Myford, ML7, Super 7 and 254 lathes - though the 7-Series models had to be mounted on the maker's cast-iron raiser blocks to give sufficient clearance beneath the bracket into which the column fitted. The maximum clearance between spindle nose and the cross-slide of a Super 7 was 298 m, the minimum nil and the throat depth (from spindle line to the inside of the column) 163 mm.
Able to be tilted 90 in each direction from upright, and turned through 180 on its vertical axis, the all-geared, oil-bath head was moved up and down the main column through a range of 314 mm by a combination of a screw thread and worm-and-wheel gearing. Cleverly, this design allowed the operating handwheel to be positioned horizontally (to the right hand side) - a decided improvement on the inconvenient and awkward-to-operate vertically handwheel on the similar units made by Emco. Running in a combination of ball and needle roller bearing the spindle was held in a sliding quill with a travel of 40 mm under the control of a 3-spoke capstan handwheel fitted with a zeroing micrometer dial graduated at intervals of either 0.5 mm or (from 0 to 1.6") in increments of 0.02". Although the head could be inclined, the fine feed was only available in a vertical direction, not on the spindle axis, that being confined to the quick-action feed, a considerable inconvenience when attempting sensitive work.
Bored with a No. 2 Morse taper nose the spindle carried a standard Myford 7-series lathe spindle nose thread of 1.125" x 12 t.p.i. - its use allowing an owner to employ existing chucks, internal compression collets and other suitable fittings. Six spindle speeds were provided that spanned a very useful range: 130, 200, 370, 700, 1100 and 2000 r.p.m. driven by either a 1-phase or 3-phase 0.25 h.p. motor controlled by a simple no-volt release push-button starter..

Myford VM-A milling attachment and T-slotted boring table being used on a power cross-feed Myford ML7B

Machining a flat face with a 2-inch shell end mill

Boring the casting using a between-centres boring bar


Drilling a hole on the same setting used to machine a flat face

Fly cutting the end face of an aluminium casting

Using a precision boring head

Myford dividing attachment holding a shaft being milled with a feather keyway

Cutting a splined shaft with the aid of a Myford dividing attachment

Milling a dovetail using a 1.5-inch cutter held in a 3-jaw chuck


Myford Millers Home Page
Myford Lathes Home Page    Myford VM-B Miller   
Myford VM-C, VM-E & VM-F Millers



Myford VM-A
Milling Attachment

email: tony@lathes.co.uk
Home   Machine Tool Archive   Machine-tools Sale & Wanted
Machine Tool Manuals   Catalogues   Belts   Books  Accessories