This instructable is dedicated to building a laptop stand with a built-in swivel support for smartphone; It might seem almost useless, but my experience tells me that sometimes I have to use them both simultaneously, and the ability to listen to music or watch some videos without overloading it too the computer and possibly download a few files from phone to pc.
Then we go to start explaining.

Step 1: The Components

  In the picture below you can see the components that made this laptop stand.
It's aluminium profiles with square section 23.5 mm section specially designed to fit each other through special inserts designed to create joints at 90°, 180° or in various combinations such as variable angle couplings or joints.
I have found these joints in a specialized hardware but I think this thing, with various brands, we are everywhere.
Now, I have not found it necessary to describe the phases of construction in words because the images speak for themselves, and then my English (taken from a simple copy and paste of  Bing translator,) is probably not the best.
So I'll just say a few tips on editing:
1) possibly useless hint: measurement precision. I, having taken the salient measures by my two laptops I did a design on paper with measures to prevent more possible errors (which, however, there have been the same)
2) to insert the profile joints I helped with a hammer as they are very hard to insert and virtually impossible to remove; to avoid damaging the work I used pieces of wood on both sides to cushion the blow.
3) each piece that has been sawed (I used a jig saw because they have other things) has been carefully deburred and eventually worked with the grinding wheel to fine-tune the perpendicularity of the cut, which in any case is not critical since the same joints shall ensure "straighten" profile in the right way.
4) the sequence that I wrote is obviously not mandatory.
As regards the last link of this first phase, I think it's the gentlest and Board of control the skis of two tubes above and below before arriving at the bottom so you can adjust some throw in final stage.

Step 2:

 This is the result of the first phase of work that got the backbone.
I then fastened in the back lifts made of "T" joints swivel through self-tapping screws, after pre-drilled aluminium profile to the right position.
Swivel joints allow me to adjust in two places the lift height of the laptop.

Step 3: Second Part

  We came to the second part of the work consists in the creation of swing arm for your smartphone, which I positioned, for my convenience from the left side of the laptop because I'm left-handed, and then the left side is my favorite.
To create all the joints I needed I devised a system of my invention that is to use a pvc pipe 20 mm diameter inserted between two aluminium strips to serve as a centerpiece for a rotating joint.
Since the pvc pipe remains perfectly inscribed on the inside of the aluminum, but without friction to the rotation, I had to slightly narrow the aluminium tube so that the pvc pipe you entered by force and rotate allowing fatigue to rìmanere's semifisso.
As you can see in the picture, to create this joint I also modified the articulated joint coupling "T": in order to put the aluminum tube to pvc I had to create an open space and to do this I have decreased the size of interlocking joints that have a this case reduced to about 2 cm.

Step 4:

  A similar operation was carried out to create the second bearing, with the final part which consists of a T-joint articulated the same type used for lifts and that will serve to support for your smartphone.
Then I built, using a piece of wood with a thickness of 10 mm a template for hosting support for the smartphone which consists, in my case a template that I had recovered from the packaging of the same smartphone and therefore perfectly suited to it.


Step 5:

  And here's the result almost final.
Finally I fixed a piece of plexiglass at the bottom of the structure to prevent slipping of the laptop.
I wanted to color the support of a matte black color which is my favorite color for this kind of technical stuff.
I omitted to paint only the top of the Plexiglas to allow me to easily see the different warning lights on my laptop that you are right in that area.
And here is the final result
I left a little "unfinished" support for your smartphone as it is my intention to coat it with imitation leather to make it more elegant

Step 6: The End Result

 Finally here is a short  gallery of photos of the finished and already in use with several laptops.
A greeting to all, thank you for your attention and please feel free to post comments if you want!
Good Instructable.

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