Z-Axis_synchronisation system: A8_

Hi 'thingy people'....
I have reviewed as many as possible of the Z synch & anti-wobble systems for any 3D printer on 'thingiverse'.
They all looked very good but some for me, were too complicated, so I have adapted, changed, remixed, to a system I feel works for me; I hope you fell the same?

The Anti-wobble Top Plates I have adapted from https://www.thingiverse.com/thing:2288314 thanks to 'SmallArtFly'
A GT2 Smooth Idler pulley https://www.thingiverse.com/thing:2618509 thanks '3D_PP'

The 'synchronisation system' I have designed is specifically for the Anet A8, I am sure that this could be modified for other printers.

I do not use a LCD2004 Controller, I use a 12864 LCD Controller so have no use for the button holes.

Extras you may need...
2 x 698ZZ 8mm x 19mm x 6mm Bearing
1 x GT2 Closed Timing Belt 6mm Wide 2mm Pitch: Length & Tooth; L 800mm; T 400. (from Ebay)
2 x GT2 Timing Belt Pulley: 20 Teeth - Bore 8mm (from Amazon) or Print your own
2 x m3 x 30mm set scre