[Shop-talk] notching metal

[Ian McFetridge]

I'm not sure how helpful this will be, but when I worked in a machine shop
and made similar, I used an endmill with the material mounted vertical in a
fixture.  If it was thin, I would sandwich it between two sacrificial
pieces of metal.  Absent an endmill, you may be able to duplicate it with a
drill press or possibly a router.  Any excuse for a new tool!  Here are
some ideas
https://www.google.com/search?q=router+mill+jig&oq=router+mill+jig&aqs=chrome..69i57.3054j1j4&sourceid=chrome&ie=UTF-8

On Sat, Jan 4, 2020 at 10:26 AM john niolon via Shop-talk <
shop-talk at autox.team.net> wrote:

> Need some metal working expertise.  I know there is  a simpler way to
> notch metal than what I’m using.  I had to fabricate a latch thingy for a
> neighbor using 3/8” plate which required a rectangular notch to be cut in
> the plate about 3/4” wide and 3” deep.  I used a Metabo grinder with a .040
> cutting disc to cut the sides but how to cut the back end of the notch.  I
> thought about a saber saw with a metal blade but the notch was very narrow
> and it would have been difficult in that small area. Guess I could have
> used a hole saw at the back of the notch and then squared up with a file...
>
> I couldn’t reach in the gap with a 4.5” grinder to hog it out... finally I
> drilled a number of holes across the back line of the notch, broke out the
> slug and finished it with a file to make it square.  There has to be a
> better way.  Can’t find a hand tool to handle 3/8” material and notching
> machines aren’t in my budget..
>
> give me some suggestions and options or ideas, that haven’t dawned on my
> feeble old brain !
>
> john
>
> https://jniolon.classicpickup.com/
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