Ballscrew

[andersbrun]

Hi to you all

This is my very first post, and i hope to get things right here.

I am in the very beginning of my router project and almost all of the parts for the frame are bought.

I am now looking for ballscrews and i'm a bit unsure of what i need. The working area will be approx. x-axis2000mm, y-axis1000mm and z-axis500mm. The steppers i have been looking at have a holding tourqe of 8,5Nm. So the question is what kind of ballscrew's do i need? And....maybe this is the wrong forum for this one but, will the steppers do for this size of router.
The frame will be built of boschrexroth aluprofiles in size 90x90mm.

best regards Anders Bruneberg, Norway

[ger21]

I'd get something with about a 10-20mm pitch.

[mackeym]

i agree with ger21. Also if you didn't see it, there's a thread at the top of this forum which covers ballscrew basics. That holding torque of 8.5Nm is 1200 oz-in, and should be ok. If you want more speed and/or power, servos are the way to go. I don't know what your budget is, but a ground ballscrew with 2000mm of travel will cost about $1500+-500 or more unless you find something on ebay.