CAT 374D L

[Madda]

Originally Posted by Hemi1966

I can get under ±0,02mm tolerances when everything goes perfect

Wow, that is really tight

Do you have so perfectly configured/modificated machine or you have some trade secrets that you use to get that tolerance? I can get something about 0.05mm usually on my parts, if all goes well it is sometimes even 0.01mm, but it really varies on part to part.

[Hemi1966]

Originally Posted by Madda

Wow, that is really tight

Do you have so perfectly configured/modificated machine or you have some trade secrets that you use to get that tolerance? I can get something about 0.05mm usually on my parts, if all goes well it is sometimes even 0.01mm, but it really varies on part to part.

I have ball screws in all axis and the cross table dovetail guides relatively tight to have minimum play.
I also make several final passes to compensate tool flex.
But like you said it won't always go so well in every parts

[Hemi1966]

Some painted parts