WM16 Mill Spindle Hold
Model Engineers' Workshop|December 2019
R. Finch describes a simple method of holding the spindle still on the Warco WM16 milling machine (and similar machines) when using a dial indicator
R. Finch
WM16 Mill Spindle Hold

Introduction

I was starting to make a drill sharpening jig which required a slot to be milled at a precise angle, so I set up a pair of toolmaker’s buttons on the mill table to use a sine-bar to set the angle. When I came to use the dial indicator to set the buttons parallel to the table, I realised that holding the dial indicator in the spindle required that the spindle had to be prevented from rotating in order to be able to obtain a satisfactory reading. This required a lot of head scratching and thinking as to how I could build a spindle hold without altering the machine itself.

I hesitated to call this a spindle lock, as that would suggest that the spindle was well and truly locked and should allow quite a bit of torque to be used. This is not the case – it merely serves to hold the spindle from rotating whilst the DTI is used. Similarly, I did not call it a spindle brake, as this might imply a method of bringing the spindle to a stop whilst it is rotating, so I decided to call it a spindle hold.

My first and primary objective was to make it such that no alterations were made to the milling machine at all. I found that I could not achieve this objective fully, as I did end up having to drill an access hole for the screw to operate the spindle hold. I considered that a single 7mm diameter hole in the plastic cover over the motor and spindle was acceptable. Otherwise, there are no irreversible alterations to the milling machine.

هذه القصة مأخوذة من طبعة December 2019 من Model Engineers' Workshop.

ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 9,000 مجلة وصحيفة.

هذه القصة مأخوذة من طبعة December 2019 من Model Engineers' Workshop.

ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 9,000 مجلة وصحيفة.

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