G'day Rodney.
Roy's advice is sound. Just buy yourself a half round file.
You could cut a full hole and sell the half you don't need on eBay.
Pardon me I've been working up bush for few days and am getting over
my withdrawal symptoms from the group.
One good turn deserves another.
Regards,
Ian
--- In 7x12minilathe@..., "roylowenthal"
<roylowenthal@...> wrote:
What size hole in what thickness of what material? For sheet
metal,
there are "D" shaped chassis punches available. For anything
thicker,
there's no real quick & easy way to make the hole. The classic
method
is to simply drill holes to rough out the opening, then finish by
filing. The other approach is to make a full sized hole, then
blank
part of it off with a half-round piece that's
glued/soldered/brazed/welded in place, as appropriate.
Roy
--- In 7x12minilathe@..., "hockeylove69"
<hockeylove69@>
wrote:
Hello all,
I have been lerking on the group for about a month now this is my
first
post. I have a HF 7X10 mini and a Grizzly Mini Mill and my main
interest is building model steam engines. However my brother came
to
me
the other day wanting me to make a part that has a half round
hole. I
have no idea how to do this. Is there a way to do this with
either my
mill or lathe? Do I need to get a broach set? All the keyway
broach
sets that I have seen make round holes with that square bit in
the
middle. Thanks In Advance, I look forward to any help that may be
provided.
Rodney.
