[simpits-tech] Driving LED's form the parallel port (?)

[Roy Coates]

On Tue, 2 Nov 2004, Matt Bailey wrote:

> Hah, I wish I had a mill. :) All I have is a cordless Dremel (the 750
> model), a power drill, and some Zona saws. Actually the pipe I'm using
> seems to be of some relatively soft aluminum variety (I think it was
> used for a ham radio antenna mast in a previous life.....) and is fairly
> easy to cut with a Zona, but this old 486 case I'm using as a base is
> made of like titanium or something. :P I tried cutting a 3/4" hole in
> it.......lots of smoke from burning paint/metal, chewed up case, and the
> bit is dulled on its corners. :) I wore it out before finishing the
> second hole, had to use a normal bit and drill a bunch of little holes
> in it, then snip the remnants away with wire cutters. I don't think a
> Zona is up to cutting this case, and I haven't even tried my meager
> Dremel 750 on it.......
>

If you're cutting holes up to about an inch, invest in a good step drill.
Thats the only way to cut neat holes in sheet.


--

Roy Coates.
Dept of Engineering.
Liverpool University.
E-Mail: r.coates at liv.ac.uk
Tel: 0151 794 4862