Adjustable Thin 10-inch Tablet Stand

So I made a 7-inch tablet stand for myself which you can check it out here 
( https://www.instructables.com/id/Adjustable-Tablet-Stand-1/ ) 
and my mum liked it so much I made another one for her, but since she uses a 10-inch tablet  I made this bigger, stronger and a little cooler. This one is not quite as compact but it is however very flat, so look at my 7-inch version for a more compact one
i carry that around but this is usually sitting beside my mum's laptop

By the way it is 100% Lego
but i am providing the dimensions in cm so you can make your own out of any materials, the important dimensions are mainly those that tell where to put the hinge

First up, some dimensions
 (L x W x H) = (26.2cm x 13.4cm x 1.4cm) or in Lego its (30studs x 17studs x 2studs) *notice the height... its sooo flat

There are 2  hinges which i will call the "main hinge" and the "strut's hinge"

Basically, in this design the main hinge determines the highest point of the whole stand when collapsed/folded. So you want to put it just above your base.

For the strut's hinge, I placed mine such that there are 7 studs between the 2 hinges or the distance between center of axis to center of axis is 6.3cm

The strut is 11.8cm long (15 studs)

The slider/pin used is 4cm (5studs) long
Basically its like a door sliding bolt lock

Anyway here is a series of photos that show the possible angles