Design Considerations...Basic!
This seems like a very basic question, and I can't find a decent answer.
What would be my design considerations when choosing a;
"Moving table" over a "moving bridge" or vice versa?
Please correct me if I'm wrong, but I think I have found examples of each;
Bob Campbell "moving table" : http://www.campbelldesigns.com/
Data-cut "moving bridge" : http://www.data-cut.com/Page2.html
Thanks!
Michael
Re: Design Considerations...Basic!
Movable gantry vs movable table:
Very simplified:
CNC Mill (metal) = table
CNC Router (wood) = gantry
It all comes down to weight and speed at larger sizes.
Let's say you want to route a 4x8' piece of oak. Speeds high for that, softer material than metal, lighter gantry possible. What weights more to move: the spindle gantry or the work? Also if the table moves you need a 8x16'. Gantry solves this.
What about a 6"x6" metal work? Need precision and slow speed. What weighs more to move: the precision metal gantry, or the much smaller metal work? Table solves this.
At larger sizes it becomes clearer.
For smaller build sizes in wood or metal it may not matter as much.
Re: Design Considerations...Basic!
Holy thread resurrection Batman! sixteen years after the last post a new comment rolls in.Maybe our new member has facebook blocked, as I do,and it takes forever for a page to load.