Placing the build plate with the strong magnet is something I never get totally right the first time. I wanted a simple way to align the plate so I created this little clip that goes on the back right hand corner and snaps on snuggly. After sliding it in place press the bottom and it should easily snap snuggly into place. It is slightly raised above the bed level so you can just place the plate in the corner and it will be perfectly aligned evey time. I created a little video to show how to install it https://youtu.be/c2uYBHbEX7Y.