Re: [CAD_CAM_EDM_DRO] Re: router for sheet metal

----- Original Message -----
From: Tony Jeffree <tony@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, October 17, 2002 8:04 AM
Subject: [CAD_CAM_EDM_DRO] Re: router for sheet metal


> However, there are always ways of surmounting these problems, depending
> upon quite what you have in mind, and how much time you have to do it.
>
> I have successfully milled out shapes in sheet brass to make clock parts;
a
> good and perfectly practical method is to attach the sheet to a
sacrificial
> plate of some kind with a suitable adhesive - for example, double sided
> tape on a block of MDF (Medium Density Fibreboard - that stuff that is
> supposed to generate carcinogens when you machine it). The only thing you
> have to watch is that the heat generated during cutting can weaken the
> adhesive if you cut too fast; however, the strategic use of a few screws
> through the scrap areas of the sheet can alleviate this problem.
>
> See:
>
>
http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/Tony%27s%20files/Clock2.
jpg
>
> All of the brass sheet components of this movement (front and back plates,
> dial, wheels, & one or two others) were machined using the technique
> described above, using a Taig CNC mill and a 1/16" diameter end mill.
>
> Regards,
> Tony
>
> At 09:39 17/10/2002 +0000, you wrote:
> >Alex,
> >While it is 'possible', it is kind of impractical. First,
> >you must have some kind of bed that you can 'carve' into.
> >Also, you must be able to get rid of the 'drops' (i.e. from
> >letters like a,b,d,e,g,o,p,q,r and numbers 4,6,8,9,0, etc -
> >sounds like the sponsors of Sesame Street, huh?). Then, you
> >must also have some means of holding the stock down,
> >because you'll be seeing considerable 'lifting force'
> >g.enerated by the (hopefully) spiral flutes of the cutter.
> >Hey, go ahead and do it if it makes you feel good. But,
> >invest in a good pair of Safety Glasses!
> >
> >RayHex
> >
> >----------
> > > From: al5502 <telecomt@...>
> > >
> > > Hi, folks!
> > > I'm new to your group.
> > > What I want to ask, is, if somebody used routers for
> >cutting
> > > the sheet metal. Is it possible to route shapes, holes
> > > (round or not), similar to what laser cutters can do?
> > > With your knowlege making X-Y table is not a problem.
> > > Is there a sutable routing head to do the job?
> > > Regards, Alex
>
> Regards,
> Tony
>
>
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