Centering Dial Indicator

Recently had to use the rotary table on the milling machine but did not have enough headroom to center it with the co-axial indicator. My milling table is mounted on a circular column so there is no possibility to lower it down, indicate and putting it up again without loosing the centering. Came up with the idea to use a 30mm range dial indicator. Unscrewed the tip and made a quick perpendicular extension enough for clearance. Worked beautifully. Can indicate holes ranging from around 50mm to 110mm diameter.


Attachment 40559

Attachment 40560

Attachment 40561

Attachment 40562

<!-- BEGIN /var/www/html/homemadetools/protected/modules/zeus/views/tool/postUpdate.php -->
Thanks johncg! We've added your Dial Indicator Offset Extension to our Measuring and Marking category,
as well as to your builder page: johncg's Homemade Tools. Your receipt:

<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="https://www.homemadetools.net/homemade-dial-indicator-offset-extension"> <img src="/uploads/250962/homemade-dial-indicator-offset-extension.jpeg"/> </a> </div> </div> <div class="head pngfix"></div> <div class="left pngfix"></div> <div class="right pngfix"></div> <div class="blockover b1 pngfix"> <div class="title"> <a href="https://www.homemadetools.net/homemade-dial-indicator-offset-extension">Dial Indicator Offset Extension</a> <span> by <a href="https://www.homemadetools.net/builder/johncg">johncg</a></span> </div> <div class="tags">tags: <a href='https://www.homemadetools.net/tag/dial-indicator'>dial indicator</a> </div> </div> </div> </div>
<!-- END /var/www/html/homemadetools/protected/modules/zeus/views/tool/postUpdate.php -->