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

--- 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