I usually make a simple and cheep drill jig with the tap drill size from a piece of steel that is thick enough to pilot the drill. Then clamp it in place and drill away. If you need two holes, just put them both in the drill jig. I did this years ago to drill holes in my sailboat mast. I have done the same thing on my mini-mill.
John
From: pdxrobpotter <rob@potter.org>
To: GrizHFMinimill@yahoogroups.com
Sent: Wednesday, October 19, 2011 1:21 PM
Subject: [GrizHFMinimill] Advice on Drilling Column
I know this is pretty trivial, but I need to drill and tap some holes in the column of my LMS mill to mount a DRO scale and some other bits and pieces. I'm looking for advice from those of you who've gone boldly before: Am I better off disassembling things so I can use a drill press, or would it work just as well to leave everything assembled and simply use a hand drill with the inherent reduction in accuracy? What approach did you use?
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