Fixed Gantry

[Auzze]

HI..

I have yet to start building my CNC Table, before I start I was wondering if there is any benfit in a fixed granite?

I thinking of set it half way down the moving table.


Auzze

[kong]

You can build a more massive gantry, without having to worry about the extra power or stronger linear bearings to move it. Also, you should be able to get away with a smaller shaft to move the table.
The drawbacks are that the router will only have around half the cutting length for a given footprint, but the bearing shafts will need to be double the length of the table.