Ballsrew or rack and pinion ?

[fgfreek32]

Hello

did do some work on my router today and z,y axle ready but now thinking what to use for the y axle.

Ballsrew or rack and pinion.

Did use ballscrew sometimes niw and di now know if ball and screw is better .

give me your opinion please

grt frank

[pinkkuli]

Hi, I use a ball screw, but if I decided to use a rack pinion system now.

Two accurate reasons
- Long spherical screws will easily cause resonance problems
- Step motors don't like fast turns. The ball screw 1 rev is only 5mm, but the GREAT TORQUE (1605 screws)

if you use an servo motor I would take a ball screw.

sorry for my english