[FirstTeam]

Hey guys I'm trying to locate some help on sizing servo motors for my X,Y,Z router build as well as the Ball screws for each Axis, the Y axis will have two motors driving the ball nut with a stationary ballscrew so I'm assuming some pulleys or gears are needed here.I was planning to drive the ballscrew on the X and Z axis. I've got the table built and ready to start the gantry currently, my plans are to use 25 mm rails for all axis on machine, I'm willing to pay someone for help on these sizing items if any of you are in the field of knowing this information,I hate to buy the wrong equipment my first go round, here are some specs of the machine so far that I do know,I'm also attaching a picture here so you can get a feel for the setup.

HSD ES915 or ES929 router head 24000 rpm 5 or 10 hp. (haven't decided but want it to be capable of larger motor)
Gantry weight with larger motor but no servo is 289 lbs
Items that will be cut usually is hardwood,plywood,aluminum sheets.
would like fast travel speeds , 1200 ipm, etc.

The screw manufacturers ask me about Axial force on screw,orientation,normal loads,duty cycle to include velocity,acceleration and travel distance per year but of course me not being a Engineer in this field that sounds foreign.

Thank you in advance for any help.
http://www.cnczone.com/forums/attach...d=346962&stc=1

[ger21]

Two motors on 1 screw? Or am I not understanding?

You really need to talk to some application engineers here.
As a guess, on the long axis, you probably want a screw that's 40-50mm diameter, with a lead of 20-30mm. We have a similar size screw on our Morbidelli, and it's under a LOT of tension to keep it from sagging and whipping, and it also has a spring loaded support in the center.

Just a guess, but you probably want a servo in the 1-1.5Kw range for the long axis, but could probably get away with 750w - 1Kw on the others.

[FirstTeam]

It would be two screws with a single motor on each,I was thinking in the 40 mm range