moveable table/gantry question

[Kev]

Hello

I have a question about CNC table design. Some have a moveable table.
Others move the gantry. On the open source drawer slide design it seems to be headed toward a moving table. Why move the table rather than the gantry? Is there an advantage I am missing?


Thanks

Kev

[PEU]

I opted for moving table so my gantry is more rigid, you get less work space but machine overall is more solid.

here is my build log:
http://www.cnczone.com/forums/showthread.php?t=10927

Pablo

[ger21]

Originally Posted by Kev On the open source drawer slide design it seems to be headed toward a moving table. Why move the table rather than the gantry? Is there an advantage I am missing?

I think using drawer slides would be much more difficult on a moving gantry machine. Drawer slides are just not that strong, imo. They would work much better on the moving table design.

As was mentioned, a moving table can take up a lot more space, and the gantry will usually be more rigid. But there's no reason that one couldn't build a moving gantry machine just as rigid as a moving table. You just have to go about it a bit differently.

[Kev]

Thanks guys for the replies

Peu, you have an interesting build thread.

This is my first machine and will be very light duty. Maybe drawer slides will be adequate?


Kev