Strong vibrations in ball screw linear actuator - is it normal

[mbridge87]

Audio quality on phones is not the best but it definitely does sound gritty.

Like you said, I may as well get them to send me another but in the meantime it seems sensible to explore other options. This machine was a bit of a headache on the shoot. It was really good, software worked well, the camera moves I was able to accomplish were great but the vibrations ruined shots. Everything would look fine until I got into the edit and noticed these violent vibrations which would cause the lettering on the pen we were shooting to almost buzz for a moment.

In other words, still really interested in what you can put together Dean.

Shall I ask them to send another ball screw and ball nut? From what I understand it's hard to put those two elements together so I'd be a little concerned if I needed to put the new ball screw on the old ball nut.

[Gary]

Personally, i would get them to send both. especially if the ballscrew and nut are Chinese, Replacing a nut was always an issue, because the Chinese buy the reject screws from the big factories like TBI in Taiwan and then make their own nuts to suit the screw. But they get rejected for a number of issues like the root diameter is not within specification.
So you end up getting a replacement nut and it does not fit correctly on the screw and is either too loose or too tight.
Get them to match the nut to the screw and test its straightness prior to sending.