Re: [CAD_CAM_EDM_DRO] Re: knee mill router

George,

The big question here will be what type of spindle are you going to use? How fast will you want to cut. Are you going to be doing production work?

I have had very good results using my Porter Cable router cutting aluminum, but I make several passes of about .1 inch each pass.

I have seen Multicam demonstrate one of their CNC router cutting aluminum using a 10 hp spindle. It was a gantry system driven from both sides of the X axis. Their machines are made out of steel.

It can be done, but you need to look at your requirements.

your question of "Will the plans of using mild steel and

> the fixed gantry design work in creating a cnc system accurate enough
> to mill metal as compared with converting a drill press to cnc (using
> dovetail X & Y metal tables)?" is yes as long as you know what you are getting into.

Bob Campbell
Bob@...
www.campbelldesigns.com
Breakout board
THC board sets
CNC router plans
Stepper Motors

----- Original Message -----
From: "george_barr" <george_barr@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, March 30, 2004 4:28 PM
Subject: [CAD_CAM_EDM_DRO] Re: knee mill router


> Bob,
> On my next cnc system project, I plan to machine metal (e.g.
> aluminum). How accurate is your fixed gantry system (or whatever you
> name it) as pictured in your campbelldesigns.com site? Can it
> machine metal projects and how precise is it? I know the aluminum
> extrusion is not very strong, so I plan on using thick mild steel to
> provide strength a rigidity. Will the plans of using mild steel and
> the fixed gantry design work in creating a cnc system accurate enough
> to mill metal as compared with converting a drill press to cnc (using
> dovetail X & Y metal tables)?
> Thanks,
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Robert Campbell" <bob@c...>
> wrote:
> > George,
> >
> > What type of material are you going to machine?
> >
> > Bob Campbell
> > Bob@c...
> > www.campbelldesigns.com
> > Breakout board
> > THC board sets
> > CNC router plans
> > Stepper Motors
> > ----- Original Message -----
> > From: "george_barr" <george_barr@y...>
> > To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> > Sent: Tuesday, March 30, 2004 5:43 AM
> > Subject: [CAD_CAM_EDM_DRO] knee mill router
> >
> >
> > > I would like to know the advantages of on CNC mill design over the
> > > other. The first machine is a Knee Mill (e.g. drill press
> converted
> > > to a CNC machine) and the other is where the gantry is stationary
> and
> > > does not move (see sample picture at the bottom of
> > > http://www.campbelldesigns.com). If I want to mill precision
> metal
> > > projects where precision is very important, how much accuracy
> will a
> > > Knee Mill provide over the stationary gantry design? Also, what
> is
> > > the advantages/disadvantages of one over the other?
> > >
> > > Thanks,
> > >
> > >
> > >
> > > Addresses:
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> Addresses:
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> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
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>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
> Yahoo! Groups Links
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