How to make 3D grid?

Hey guys!
So I’m trying to make a 3D square grid in grasshoper, but I don’t really know where to start. I want to be able to change the cells’ size, so I guess I would have to use some sliders for that, but other than that I have no idea.
If anyone can help, please let me know.
Thanks in advance! :slightly_smiling_face:

thanks for the quick answer!
but I actually want the lines of the grid to be displayed and not the points. like in a 2D square grid for example

Lines created from points