Originally Posted by Nonoriginal Please let me know if the following is accurate;
A movable Gantry or bridge is more complex, less sturdy, but has a smaller footprint than a fixed gantry or bridge. The fixed gantry or bridge requires more space, is very sturdy, and less popular. Hmmm....
Is there a major price difference between the two designs other than the components one would choose to go with Ie. Steppers, rails, lead screw vs ball screw, etc. I would think a movable gantry would require more components to construct? but then again I'm no pro when it comes to CNC routers (if you couldn't tell...  )
Where would one go to gander at how all these systems work? I have been reading a lot in regards to these sweet machines. However, I'm still not sure how all the components "fit" to complete the "rolling chassis", if you will. I guess one could say that I'm a visual (picture) learner.
I appreciate the help. |
First part of you question is mostly incorrect exept for the added space
requirement.
Both systems are allmost identical in there requirement sturdyness and cost.
Think out of the box, forget about moving or not moving gantry and concentrate your efforts on the things that matter.
Transfer of power from the table to your motormounts, use the most efficient
sturdy structure between those components as your requirement calls for.
In the end if you have a moving bridge or a fixed gantry will simply depend
on where you decide to mount the legs onto.
Good Luck