# Computer-controlled cutting

### Weekly_Assignments :

``````-    design, make, and document a press-fit construction kit

The task for this week was to design and build a press-fit kit using vinyl cutter and laser cut. Moreover, our instructor wanted us to gain extra credits by creating a vinyl sticker.
``````

#### intro…

While looking for some examples to take inspiration from, I stumbled upon a peculiar way of working with cardboard, as shown in this video at the minute 2:00

The video shows how to perfectly bend the cardboard cutting the opposite side in a very simple way.

#### the idea

often use my macbook pro in the laboratory and I have to lay it over tables with dusty surfaces, that could scratch my precious laptop…so that, instead of buying an item like this (which litterally may cost a fortune, like 400 dollars to put your laptop on this way-too-much prestigious piece of wood) I wanted to create something that could suit my needs.

I wanted to spoil this assignment to create a laptop stand with a parametric configurator:

• using wates of cardboard or wood
• which can be easily built with press-fit joints
• including the vinyl cutter in order to make it cuter and less anonymous

#### workflow

Parametric project and test

###### -After writing some notes on a sheet of paper and writing a wrong code in OpenScad,

these are the settings to be included in OpenScad to generate your own laptop stand…obviously adding the kerf=K

Once I put in the measures of my Mac and the cardboard (such as thickness and base dimples) I just had to export the file in DXF and uncomment (meaning removing “//” in the second line after //+++++++++++Laser Cut cardboard (press F6 and export DXF) as shown below

###### //+++++++++++Laser Cut cardboard (press F6 and export DXF)

translate([X+P+X/5+K+K+10,0,0]) projection(cut = false) rotate([0,0,90]) layerdown();

projection(cut = false) overup();

I have also created a small test to understand the power of the laser cutting and check the cuts in the flexible section of the project.

###### //+++++++++++Test laser cut cardboard

projection(cut = false) testlaser();

###### -Unfortunately, OpenScad doesn’t export colours, so I had to use Autocad in order to open the dxf and change the colours of the cuts

I began with editing the file to test the power of the laser cutter…

##### Lasercut!

###### - Unfortunately we can not use the fabmodules to send in cutting, but we have to create a pdf and send the job directly from the PC connected to the laser cutter.

After a few moments of discouragement, I realized that the cardboard was different from the one I used in the cutting test.

Looking around in the FabLab I found another piece of cardboard similar to the one I used in the laser cut test…In the meantime, my instructor asked me to change the parameters of the file, to test the project for his MacBook Air.

##### vinyl cut!

###### //+++++++++++Vinyl Cut

projection(cut = false) vinile();

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