Ball Screw alignment problem

  • Dinuka_Shehan
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22 Jul 2019 05:52 - 22 Jul 2019 06:11 #140151 by Dinuka_Shehan
Ball Screw alignment problem was created by Dinuka_Shehan
I made custom bearing blocks and now have a problem with align with x and z axis.
I want to reduce cosine error.
sfu1605 ballscrew from China.
Cross slide ballscrew 400mm and z axis 650mm.
Last edit: 22 Jul 2019 06:11 by Dinuka_Shehan.

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22 Jul 2019 06:28 #140153 by Dinuka_Shehan
Replied by Dinuka_Shehan on topic Ball Screw alignment problem
I will add some photos later

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22 Jul 2019 07:52 #140157 by pl7i92
Replied by pl7i92 on topic Ball Screw alignment problem
and where is the problem
if you got spare torque on the steppers do a hard bearing tight fit
this gives stiffness on non dirt mashines

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22 Jul 2019 14:51 #140181 by Dinuka_Shehan
Replied by Dinuka_Shehan on topic Ball Screw alignment problem
Ballscrew should be parallel to lathe bed way?

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22 Jul 2019 15:27 #140189 by tommylight
Replied by tommylight on topic Ball Screw alignment problem

Ballscrew should be parallel to lathe bed way?

Yes, very.
Any misalignment will cause friction and premature wear of the balls and the screw, to much misalignment will bend the screw rendering it useless.

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22 Jul 2019 15:38 #140195 by Dinuka_Shehan
Replied by Dinuka_Shehan on topic Ball Screw alignment problem
I measure with vernier.
Is it enough?

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