Re: Machine geometry

Geoff ,

The size of the table depends on what you plan to make. I have a 4' by 4'
moving gantry system which has some play in it. I am currently building a
2' by 2' fixed bridge cnc router that should be very ridged. I cut a lot of
Corian and wood parts.

Bob Campbell

----- Original Message -----
From: Geoff Roehm <groehm@...>
To: <CAD_CAM_EDM_DRO@onelist.com>
Sent: Monday, June 07, 1999 5:44 AM
Subject: [CAD_CAM_EDM_DRO] Machine geometry


> From: groehm@... (Geoff Roehm)
>
> Per the recent request for lurkers to de-lurk:
>
> I recently received some linear components from Bill Scalione, and now
> have to decide what kind of machine to build with them. I have two sets
> of 1" dia. rails, 54" and 66" long. Also two tables, nominally 22"
> square with two open bearings at each corner along one edge, and one
> open bearing centered along the opposite edge. These tables weigh about
> 30 lbs apiece.
>
> My question is what geometry will be best for a (mostly) wood router? I
> like the greater working envelope that a moving-Y gantry system would
> provide, but this requires a longer leadscrew and probably heavier
> motor. The moving-X table system, while easier to build, and probably
> more accurate, provides only half the travel.
>
> Any suggestions appreciated.
>
> Geoff Roehm
> http://personalweb.edge.net/~groehm/
>
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