Re: [CAD_CAM_EDM_DRO] Long X axis Method of travel.

Jon,

None of my builders are building anything over 50" long. It does take 8' of
space. In reality a Gantry machine would take at least 6' of space. Once
you get past 4' then a gantry machine would win out.

For a lot of people 3' by 2' of cutting area is plenty.

Bob Campbell
http://www.campbelldesigns.com
Breakout Boards
VisualMill 5.0 basic

----- Original Message -----
From: "Jon Elson" <elson@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, November 13, 2003 9:04 PM
Subject: Re: [CAD_CAM_EDM_DRO] Long X axis Method of travel.


>
>
> Robert Campbell wrote:
>
> >Peja,
> >
> >The problem that I had was with racking of the Gantry. This can be
overcome
> >by proper design.
> >
> >For machines 4' by 4' or smaller, I recommend my design using a moving
table
> >with a fixed (bolted down) bridge.
> >
> >
> The problem with this design is it requires twice the space. No question
> that the machine can be made more rigid, and the twisting of the gantry
> is avoided. Also, if the bridge doesn't move, you can then make it as
> rigid as you want without worrying over the weight.
>
> Jon
>
>
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