Tablet Stand with Add-ons customizable (Pendrive, MicroSD, SD, Pen holder)

Tablet stand customizable with various modules including Pendrive, MicroSD, SD, Pen holders and a free compartment.
The stand is pretty stable with my 10.1" tablet. I believe it will do well up to 13".

You must print at last:
1. Tablet Stand.stl
2. Tablet Stand ADDONS JOINTS.stl x2
3. Any of the ADD-ONS from 1 to 6

ADD-ONS Description:
AD1: Pen Holder x1, MicroSD x2, Pendrive x2
AD2: Pendrive x3, MicroSD x2
AD3: Pen Holder x2, MicroSD x1, Pendrive x1
AD4: Pen Holder x3
AD5: SD