Grinding flat surfaces on vertical mill?
(Warning, rookie alert)
I'm looking to make some mounting posts, ala:
http://www.glowstart.co.uk/images/hpic1072.jpg
(a little thicker than these)
I've got my round bar stock sitting around. I figured what I would do is band saw off some approximate length pieces and grind them down nice and flat before drilling. 2 questions:
- Would you guys recommend some kind of grinding operation to get the surfaces flat, or should I just run an end mill over them to surface them down (maybe grinding afterwards)? What's the standard technique for grinding something down using a mill/drill press (again, beginner :) )?
- General machining question. When you've got a length of (round) metal that you want to make perfectly flat and perpendicular to the length on both ends, but at the moment neither end is even close, how do you get the piece set up to be machined? What's your reference point for "flat"? See below:
http://daveb196.home.insightbb.com/bar.jpg