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From: gwyn@brl-tgr.ARPA (Doug Gwyn <gwyn>)
Newsgroups: net.puzzle
Subject: Re: Manhole covers (interview question)
Message-ID: <9439@brl-tgr.ARPA>
Date: Fri, 22-Mar-85 13:14:17 EST
Article-I.D.: brl-tgr.9439
Posted: Fri Mar 22 13:14:17 1985
Date-Received: Tue, 26-Mar-85 05:15:38 EST
References: <224@wudma.UUCP>
Organization: Ballistic Research Lab
Lines: 5

> 	... any of you mechanical types out there care to discourse on the
> 	problems involved in driving the bit when it doesn't rotate
> 	around a fixed axis?

Use an eccentric chuck and a square template.