Originally Posted by ger21 A moveable gantry can be made just as stiff as a fixed gantry. It may not be as easy to do, but it can be done. Most people go with the moving gantry because you only need about 60% of the length for a given cutting length. You'll also need a longer linear bearing setup for the moving table, which could cost a lot more if using high quality components. |
Hi ger21, I just read your post from a different thread, looked
at the link you left there.
http://www.k2cnc.com/machines/KG-3925_detail.html
Nice Machine pictured on the Page.
This Picture pretty much makes the point I was trying to make
it shows a basic machine structure without any legs mounted.
A very good design I might add.
But the machine still can be used ether way depending on where
you chose to mount the legs to.
Mount then on the ends of the Table and you have a moving gantry.
Mount then spread out to the gantry itself and you got yourself a
fixed gantry with a moving table.
The components of the machine structure itself remains absolutly
itentical.