So here it is. All I can say Fred is top man, he takes all responsobility for that. His prices are a bit higher, but his service is awesome. Here are his last emails:


"Hi Valdas,

Thanks for all your help.

So sorry for the inconvenient to you,it is my first time to aware the ballnut size may have error possibility.

You are correct,seems the whoel centre hole are out of the position,the ballnut are produced in bulk quantity,I guess there may have some other wrong size ballnut went into market :(

I sincerely apologize for the problem to you,generally I will test whether it is in smootly running and the backlash,not measure size in before time,could you please tell me which the length for which 3set ballscrew have problem?I guess maybe all for 1610 model?

As now we are in holiday time,and here it is my opinions,
1)If you can waiting and build your machine in the later of next month,
Then I will arrange new production for you once back to office around on Feb.10,and hope can delivery around on Feb.12,if everything going well then shold can arrival on Feb.20.

2)If you need start your project as soon as posssible,
Then can check what's the selling price in your local market for similar Chinese ballnut?I know it will much higher than we selling,but since it is our mistake,so we have to afford all the responsbility,in order not influence your schedule too much,if you can get the ballnut from local market,no matter how expensive will be for the similar Chinese ballnut,I will pay for it.

Another question,are you skilled to install new ballnut?guess you know,the ballnut can't remove or install directly if there is no some tube between the ballnut,that means there must have something(like tube) in the middle of the ballnut,to prevent the inside steel balls dropp,and if you buy ballnut from local market,it is not 100% sure can be use directly,may need adjust the backlash to suitable according change different size steel balls.

If you didn't install the ballnut and adjust the bachlash in before time,then we will send the new ball screw with ballnut together to you,or you can buy the completed set for ball screw and ballnut together.

You can do it in any convenient way for your project.

Sincerely apologize again.

Best wishes
Fred

[email protected]"




Another one:


"Hi Valdas,

Thanks for your kindly waiting,really sorry for delay your schedule,in order to aviad the the new ballnut not in correct backlash in your present ball screw,I think we'd better delivery the completed set to you,so I will arrange the ball screw with ballnut together for the new delivery.

Will arrange the production work once back to office."




So actually i will get another set of ballscrews the only downside of its the time.

And now about something different than screws and ballnuts. Maybe someone wants a Rital enclosure for free? Its 700 height 500 width and 200 depth. I has some holes allready cut but some of them can be used i think. It doesnt have a back plate. If anyone is interested just let me know if not it is going to skip, just trying to save it from such a destiny.






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