About this 3D model

Hi guys, i'm back with this new vitamina to improve stability of our P3 Steel!I use smooth rod lenght as per wiki project dimensions (http://reprap.org/wiki/P3Steel) 320 mm but theese were free to move along Z axis, and threated rods were not fixed on the top plate causing a lot of rumors, so i decided to make these plates to improve stability and reduce noise of rotation.With theese plates now i can print better and i use it since a lot of days, so they are tested well.Feel free to share and give me feedbacks ;)