Re: Hybrid CNC RP that's do-it-yourselfable

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Mark Bingham"
<fourthaxis4000@...> wrote:

>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "afogassa" <afogassa@>
> > > Frankly, I prefer the hot polymer
> > > idea because the materials are 'real world' and widely

available.

> > The
> > > same site shows some tiny extrusion cylinders for micro

plastics

> > > dispensing.
> > >
> > > This is the kind of technology that could certainly couple a
> > > micro-extruder to a CNC mill and is do-it-yourselfable.
> > >
> > > Mark
> > > www.fourth-axis.com
> > >
> >
> > I agree it is dimension stable,but in my opinion if I've to

deposit

> > then mill it, why not just mill it? cnc machines are cheaper

then

> > the Rp machines plus I already have one, and I'm tired of

milling

> > parts and changing tools :)
> >
> Afo,
> A few reasons come to mind. If dealing with products that have
> interior hollows, they need to be constructed rather than milled

from

> the solid, for reasons of access. The stage-by-stage deposition and
> follow-up CNC machining lets you create parts with hollows, with
> engineering tolerances and excellent surface finish. Of course, a
> basic additive RP machine, whether it's powder fusion or SLA or
> whatever, can do a lot of great work but there are objects that

need

> different techniques.
>
> I'm not suggesting it's BETTER than what you're doing, simply a

cool

> link that shows a solution for precision parts.
>
> Mark
> www.fourth-axis.com
>

Hi Mark,
BETTER or NOT, it's nice to know what's out there to get quick
parts, thank's for sharing the link.
I think we will never get bored with our jobs, there is allways a
new machine being design to make faster and better parts, if we
can't buy it we try to make it :) this 2d printer retrofit may take
up to 9 months to be born using only my spare time :) maybe there
will be a better 3d machine on the market by the time I finish, and
then the cycle starts again :)