Week no. 5

3D Printing

To this part of the assignment we need to design and print an object that could not be made subtractively.

So i started to design...

First i did a sphere and some cilinders and did a bolean difference to make some holes in the sphere.

Then i did another sphere, smaller in way to fit inside de other one.

hided the other layer to focus on this one

and did some other cilinders to make some holes in this sphere too.

To make the holes i used again the bollean difference, but i didn't delet the imput so i can change it later if i nedded.

And this is my impossible object.

Now i need to save it on .stl format so i can generate a code to send it to the printer.

Sanving the stl file we can see some export options and a mesh perview so we ca decide ir we need do triangutate more or less.

At this point we need to upload the stl file to Cura software to generate a G code and send it to the printer.

When i uploaded the model into Cura i noticed some mistakes and i needed to go back to my design to correct them.

To correct the interior edges left by the ciliders cuts, i designed a sphere inside and did a bollean diference to take it of.

Then i reduced the size of the inside sphere and moved it up for the suport part.

I uploaded the new stl file to Cura again.

Set the parameters like you can see on the images. The .15 layer is because of the overhangs of the cylindrical shapes.

And put it on the layer view mode to see how it grow's.

Now i think i'm ready to print. I used my boyfriend's printer, is a printer based on a prusa i3 with a wood frame,

and printed with 1.75mm black pla filament.

here's a movie to show the spheres moving:

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