Model Engineers’ Workshop – August 2019

August 2019 9

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Turret Stop

3.6 Locking Collar

6.3 Tee Nut Bar

6.2 Guide

Bush Cover

6.4 Guide Peg

7.0 Attachment

Block

3.2 Locking Collar

3.1 Length Screw

8.3 Acorn Nut

4 Mounting Bar

Tailstock End Headstock End

6.4 Locking Handle & Washer

2.1 Turret Body

6.7 Stop End Pad 5.1 Stop Body

6.6 Adjustable Stop

8.1 Stop Rod

7.0 Attachment Block

3/8 BSF Nut

Washer

1/16 gap

0.

Turret looking towards

lathe headstock

Stop looking towards

lathe headstock

3.3 Bronze Bush

3.4 Indexing Hub

6.1 Guide Bush

6.2 Guide

Bush Cover

Section through turret,

showing indexing hub

Section through stop,

showing guide bush

General Arrangement

A Lathe Saddle

Multi-stop

A

bout 20 years ago I designed and
made a multi-position saddle stop
for my Myford Super 7. At the time
most of the design ideas consisted of
rough sketches with a couple of hand-
drawn drawings.
When a fellow Club member (Paul Clark)
was looking to acquire a saddle stop he
came along to view mine and decided to
build one for his Myford Super 7. That
said, I agreed to provide some detailed
CAD drawings, and while the device was
in pieces, I took a number of photos of the
component parts.
Having drawn the device in detail, and
taken some photos, it made sense to write
it up as an article which may inspire others
to make something similar as a useful
addition to their lathes.
Although this design is for a multi-stop,
it is also in frequent use as a simple single
stop for turning and boring to a given
dimension, say up to a shoulder or the
bottom of a bore.

Introduction

This six-position saddle stop is mounted

at the rear of the lathe out of the way but

is easily accessible. It uses existing tapped

holes in the machine intended for mounting

a taper turning attachment or saddle stop,

and also a coolant pipe, so there is no

drilling or tapping of the machine required.

Although the design is specifi cally for

the Myford Super 7, the principals could be

applied to other machines. It is substantial

and capable of being scaled up or down if

required.

Some of the photographs may show a

slight deviation from the drawings as the

opportunity has been taken to make small

improvements to the design based on

around twenty years experience of using

the system. These will be explained in the

relevant section of the text. Most of the

‘action’ photographs are posed using parts

made twenty years ago, although there are

1

Fig.

Roger Vane presents a

refi ned design for lathe

saddle stop worthy of

any machine.

The assembled unit on the bench