Question about the printing

Vertex 3D Printer
1

Hello, I have a K8400 since 2 years ago and I’d like to ask about a simple question that I don’t whether it is normal or not.

Every time I remove the glass bed to remove the parts I’ve printed, I fell that I disadjust the leveling of the bed and thus I have to do a fine adjustment of the three screws below the bed when I’m going to print again.

I’ve read in the forum that Z-axis in this printer is as solid as a rock but I notice that, even being very careful when I take the glass apart, the bed doesn’t keep the leveling that I made last time.

Could anybody help me to solve this doubt? If you do this in another way, please tell me.

Thanks in advance.

2

You may want to check the screws that hold the brackets for the bed to the bearings and rods.
I went through this one time on mine until I found they were very loose.
Now I check them every so often just to make sure.