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<div><br></div><div>On 27 Feb 2015, at 6:56 pm, John Harrison <a href="mailto:john@jaharrison.me.uk">john@jaharrison.me.uk</a> [bellhistorians] <<a href="mailto:bellhistorians@yahoogroups.com">bellhistorians@yahoogroups.com</a>> wrote:<br><br></div><blockquote type="cite"><div>
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> Verdin do not have a vertical borer for turning metal off so rigged up<br>
> the grinder system.<br>
<br>
Can anyone comment on the pros and cons of the two approaches? I guess the<br>
grinder would need a less rigid and powerful rotation mechanism to ensure<br>
an accurate circular path, but is the result likely to be any better or<br>
worse?<br>
<br>
-- <br>
John Harrison<br>
Website <a href="http://jaharrison.me.uk">http://jaharrison.me.uk</a><br></p></div></div></div></div></blockquote><div><br></div>I doubt you can take as heavier cut with a grinder as with a boring mill, which will make the process less efficient. I'm not sure that the finish will not be as good as that obtained with a tungsten carbide tipped lathe tool.<div><br></div><div>R<br><blockquote type="cite"><div><div id="ygrp-mlmsg" style="position:relative;"><div id="ygrp-msg" style="z-index: 1;"><div id="ygrp-text"><p>
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