Anyone got a broken toaster? - SuperHappyDevClub

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Message from discussion Anyone got a broken toaster?
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Date: Mon, 28 Mar 2011 00:08:21 +0100
Message-ID: <AANLkTimLTX5M08XSkH-2-GF96MKEOzxc-PmLYBraZ...@mail.gmail.com>
Subject: Re: [shdc] Re: Anyone got a broken toaster?
From: Adrian Godwin <artgod...@gmail.com>
To: shdc@googlegroups.com
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On Sun, Mar 27, 2011 at 11:24 PM, Tom Oinn <tomo...@gmail.com> wrote:

> On 27 March 2011 22:39, Simon Ford <simon.a.f...@googlemail.com> wrote:
> >
> >>
> >> How about one of these ?
> http://cgi.ebay.co.uk/3W-808nm-High-Power-Laser-Diode-Brand-New-DPSS-...
> >>
> >> -adrian
> >
> > Frigin laser. Awesome :) that sounds like one to try.
>
> I really hope you're not serious there :p If you are can you tell me
> so I can never come to SDHC ever, I like my eyes :)
>
>
You have a point there :-).



> > I also just thought (inspired by a previous shdc) how about a hacked
> > sewing machine to give a jigsaw like action for a dremmel bit ?! Mount
> > the oscillating mech  under the board.
>
> You might be best off with something with less travel, I vaguely
> remember we had cutting machines at school (some years ago) where you
> could touch the blades as they were moving such a small degree that
> they just vibrated anything non-rigid in contact with them while going
> through balsa etc like a hot knife through butter. Could probably use
> an old speaker or something?
>
>
I've got a little fretsaw that might be how you describe - it doesn't have a
proper motor, just an open transformer. Works like a buzzer. I haven't tried
to cut myself but I would think the only nasty part is where the blade
enters the cutting table.

It does have the blade supported by a big spring at the top end, though.
Supporting a cutting tool vertically without tension would be more
complicated.

I also wonder whether a simple spinning dremel tool would work - it's easy
to get a burr hot enough to melt plastic, so perhaps you could heat the
spindle with friction rather than cutting with abrasion ?


-adrian

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<br><br><div class=3D"gmail_quote">On Sun, Mar 27, 2011 at 11:24 PM, Tom Oi=
nn <span dir=3D"ltr">&lt;<a href=3D"mailto:tomo...@gmail.com">tomoinn@gmail=
.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"bo=
rder-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding=
-left: 1ex;">
<div class=3D"im">On 27 March 2011 22:39, Simon Ford &lt;<a href=3D"mailto:=
simon.a.f...@googlemail.com">simon.a.f...@googlemail.com</a>&gt; wrote:<br>
&gt;<br>
&gt;&gt;<br>
&gt;&gt; How about one of these ?<a href=3D"http://cgi.ebay.co.uk/3W-808nm-=
High-Power-Laser-Diode-Brand-New-DPSS-." target=3D"_blank">http://cgi.ebay.=
co.uk/3W-808nm-High-Power-Laser-Diode-Brand-New-DPSS-.</a>..<br>
&gt;&gt;<br>
&gt;&gt; -adrian<br>
&gt;<br>
&gt; Frigin laser. Awesome :) that sounds like one to try.<br>
<br>
</div>I really hope you&#39;re not serious there :p If you are can you tell=
 me<br>
so I can never come to SDHC ever, I like my eyes :)<br>
<div class=3D"im"><br></div></blockquote><div><br>You have a point there :-=
).<br><br>=A0</div><blockquote class=3D"gmail_quote" style=3D"border-left: =
1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;=
"><div class=3D"im">

&gt; I also just thought (inspired by a previous shdc) how about a hacked<b=
r>
&gt; sewing machine to give a jigsaw like action for a dremmel bit ?! Mount=
<br>
&gt; the oscillating mech =A0under the board.<br>
<br>
</div>You might be best off with something with less travel, I vaguely<br>
remember we had cutting machines at school (some years ago) where you<br>
could touch the blades as they were moving such a small degree that<br>
they just vibrated anything non-rigid in contact with them while going<br>
through balsa etc like a hot knife through butter. Could probably use<br>
an old speaker or something?<br>
<font color=3D"#888888"><br>
</font></blockquote></div><br>I&#39;ve got a little fretsaw that might be h=
ow you describe - it doesn&#39;t have a proper motor, just an open transfor=
mer. Works like a buzzer. I haven&#39;t tried to cut myself but I would thi=
nk the only nasty part is where the blade enters the cutting table.<br>
<br>It does have the blade supported by a big spring at the top end, though=
. Supporting a cutting tool vertically without tension would be more compli=
cated.<br><br>I also wonder whether a simple spinning dremel tool would wor=
k - it&#39;s easy to get a burr hot enough to melt plastic, so perhaps you =
could heat the spindle with friction rather than cutting with abrasion ?<br=
>
<br><br>-adrian<br><br><br>

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