26856Re: [GrizHFMinimill] RE: How would I machine a flat-bottomed hole with a boring head?
- Nov 18, 2013John
I hope you can put it to work to earn its keep. That is a lot of cash if you only use it to face off the odd hole.
I don't suffer from insanity I enjoy it!
Mene, mene, tekel, upharsin
The writing is on the wall.
Ha-ktovet al ha-kir
On Mon, 11/18/13, John Lindo <bechetboat@...> wrote:
Subject: Re: [GrizHFMinimill] RE: How would I machine a flat-bottomed hole with a boring head?
To: "GrizHFMinimill@yahoogroups.com" <GrizHFMinimill@yahoogroups.com>
Date: Monday, November 18, 2013, 4:21 AM
Managed to buy this
off ebay.for $300< http://www.ebay.co.uk/itm/261322226592?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649%c2%a0>the
previous one went for $450This
head has a #2 MT which suits my mill.Quite
a rare item,and Wolhlaupter have stopped manufacturing these
On Monday, November 18, 2013 1:07 AM,
go to the web and look up wohlhaupter upa3 boring
heads ..I used one in the tool room one jig bore ..very
expensive but they do the job...
Several people have
recommended that I buy a boring head for my mini-mill.
I'm trying to
visualize how I would use it, and come up with this
question, which I'm
sure you experienced machinists have resolved thousands of
understand how one would use a boring head in the mill if
making a through-hole in a something.
But what I don’t understand is how you would make a
blind hole, or a
hole with a lip at the bottom? If you
did this on the lathe, you would, as a last step, “face”
the bottom of the hole
or lip to make it flat. But that
seem possible with a boring head.
could imagine doing this with a rotary table, using an end
mill to machine the flat bottom surface, but only if the
hole were shallow enough that the end mill could reach
How is this operation typically
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