Re: Sanity check for homebrew CNC milling machine

In the past couple years on the list, I seem to remember those that
go for a sliding table have often been for reasons like a small table
such as a PCB size. or for a larger like a plasma cutter, but that
the table would also feed a sheet.

When I was looking at designing a table someone mentioned that they
made a 4 foot table and would just index the part so as to use an 8
foot sheet, 1/2 at a time.

I nixed the idea when it became obvious that you need linear rails
twice as long, and they are hard to come by and expensive.

Dave

> A moving table design like the one at

http://www.campbelldesigns.com/ is easier to

> build and a lot less trouble than a gantry machine up to about 50"

by 60".

>
> If you need a 4' by 8' table that a gantry system will take up less

room.

> At 4' it is almost a wash. The moving table X axis will be 8' long,

the

> gantry table will be about 6' long.
>
> Bob Campbell