New Machine Build- ballscrew kind?

[uuccimi]

I'm in the middle of building my own CNC 4'x9' WOOD - router table
my question are: is the ballscrew 25mm diameter and 20 pitch the right kind for this proyect?

[LeeWay]

That is about an inch. That sounds like a good size for the 9' travel. You could likely go a little smaller for the 4'. I don't know what a 20 pitch metric screw would work out to.
The screws in my mill are 10 mm lead, so they are 2.54 turns to an inch. 20 pitch might be 5.08 turns per inch? If so, that sounds about right too.

[acondit]

Originally Posted by uuccimi I'm in the middle of building my own CNC 4'x9' WOOD - router table my question are: is the ballscrew 25mm diameter and 20 pitch the right kind for this proyect?

I am with Lee on the size of the screw, but I don't think you gave us enough info to answer the question regarding 20 pitch. Will it be direct drive or gear driven? Are you using steppers or servos? What resolution are you trying to achieve?

Alan

[uuccimi]

Originally Posted by acondit I am with Lee on the size of the screw, but I don't think you gave us enough info to answer the question regarding 20 pitch. Will it be direct drive or gear driven? Are you using steppers or servos? What resolution are you trying to achieve? Alan

CNC W O O D ROUTER TABLE 4 FEET BY 8 FEET PROJECT
BallScrew: 25mm OD - 20 Pitch
Drive: 1 to 2 belt drive
Servo: 305Oz In.
Resolution: achieve the best if the above configuration allowed