My print bed alignment setup

This might not be a new thing to some, but after I have changed to use brass rods to support my print bed instead of springs, I get much stronger compression force to work against some slightly warped plastic. this is the idea I've taken from nophead.

The bed was kinda leveled when using the brass spacer rods, but sometimes maybe due to the uneven glass or aluminium plate or caused by the bulldog clips, some parts of the plate appeared to be slightly lowered than others areas.. so I came up with this little nuts and bolt setup which can accurately adjust my build plate.

As you can see from the photo, there are 2 nuts under the aluminium plate, they act as lock nut to securely hold the plate to the top of the screw but not making it too tight, then a 3rd nut is used to tighten the screw with the brass rod.

Now I am able to get a very leveled surface against my nozzle, and I am quite chuffed with.