You can find hand nibbler tools for as little as $10-$20 new, or cheaper
used. I got mine for $5 And used it to cut my SS 14 inch bowls in less than
15 mins. I did try to cut with a Dremel disc but for me it was much faster
to nibble first then Dremel last :)
I would love a plasma cutter too, but if you are looking for a cheap
solution finding a hand nibbler will likely be your best option.
On Sun, Feb 25, 2018, 8:47 AM Troy <teslatroy@xxxxxxxxxxxx> wrote:
> Thanks everyone for the advice.
>
> I do not yet have a plasma cutter, but I've been planning to get one for
> a while for some other projects I have in mind. I'm considering one of
> the el cheapo 3-in-1 machines. When I look at the price of good nibblers
> or hole saws of the appropriate size that can do ss they're pretty
> expensive (>£100gbp) for a limited use too where a cheap plasma cutter
> for about £300 (plus compressor...) is simply a lot more flexible.
>
> Next question with a plasma cutter though... How do I clamp the ground
> lead to a sphere? I was thinking of just getting some copper strap and
> tying it into a net around the globe, criss-crossing in multiple places.
> I'm concerned that if I don't have a very good connection all around the
> globe then I'm going to end up spot-welding my ground lead to it. Thoughts?
>
> Thanks,
> Troy.
>
>
> On 25/02/18 01:27, jimlux wrote:
> > On 2/24/18 4:24 PM, doug wrote:
> >> Traditional cutting torch will not cut SS.
> >> Doug
> >
> > My email got cutoff (hit send too quick)- but to explain, a
> > traditional cutting torch relies on getting the metal hot, then
> > blasting it with pure oxygen, which "burns" the metal away - with
> > steel, it burns quite nicely. Stainless, on the other hand, doesn't
> > burn as well.
> >
> > I will confess that I've not tried to cut SS with a torch, since I had
> > a plasma cutter handy, and I preferred that for cutting just about
> > anything. However, it would seem that as long as you were cutting
> > something reasonably thin, that a standard torch would cut it - SS,
> > after all, is mostly iron, with added nickel and chromium. On the
> > other hand, the products of combustion for nickel and chromium are
> > probably pretty icky.
> >
> > The plas cutter also makes a much, much cleaner cut.
> >
> >
> >>
> >> -----Original Message----- From: jimlux Sent: Saturday, February 24,
> >> 2018 12:55 PM To: tesla@xxxxxxxxxx Subject: Re: [TCML] VDG
> >> On 2/24/18 9:12 AM, doug wrote:
> >>> I think you will find that the SS globe is VERY hard SS, Your best
> >>> drill will probably only scratch it. The best way I have found is to
> >>> nest the globe in something and use a dermel with the "TINY" cutoff
> >>> disc that comes with it. That little disc is only .026 X 1" and goes
> >>> through like butter.
> >>> Doug
> >>
> >>
> >> This is why if you have access to someone with a plasma cutter, it's
> >> great. It's what plasma cutters were invented for, since traditional
> >> cutting torches use pure oxygen to do the cutting.
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