I ordered this kit in 2021, when it arrived the shipping company had torn the package and some components fell out. I contacted VXB gave them some pictures and explained what was missing, and I was advised of some back ordered things. But there were more issues, they never sent the ball screws in the first shipment, and when they finally did they didn't send any of the linear blocks, nor did they send the Z-axis screw and anti-backlash nut.
In may of 2021 I sent an email requesting the status of the rest of my order, and have yet to receive a response or the rest of my order, which I spent roughly 1k on these because I wanted to make a dual drive x axis so ordered a second x-axis.
As for quality the linear rails were cut in a way that left them not identically the same length and you can see they didn't properly cut the rails are there is discoloring from severer temperature change, which can warp these rails or cause other issues with the precision of these rails, I cannot give an opinion on the rest of the kit as I have not been able to properly test it due to lack of follow through from VXB personnel.
