fernando meneses

about me

1 principles and practices

2 computer-aided design

3 computer-controlled cutting

4 electronics production

5 3D scanning and printing

6 electronics design

7 embedded programming

8 computer-controlled machining

9 molding and casting

10 input devices

11 output devices

12 composites

13 networking and communications

14 interface and application programming

15 applications and implications

16 mechanical design, machine design

17 invention, intellectual property, and income

18 project development

19 project presentation

5_3D scanning and printing

_design and 3D print an object (small, few cm) that could not be made subtractively

For this activity I will present a part of the final project (the final project is a device that helps to cultivate and identify bacteria). It is a part that has to support the cultivation of bacteria with 12 different media (enteropluri).

The main qualities of the piece are: should not have any curves and is very small, so the workpiece shopkeeper on all sides, if we do by subtractively, by this and by the size, I have the intention of making an additive method as 3D printing.

Here a screenshot, the design in rhino.

here we see the geometry without isocurves.

the geometry is closed and has no corners.

here we see the types of geometry by color.

green = flat surfaces, red = patches, blue = loft, orange = surfaces of revolution

here geometry with isocurves.

you can see the changes in topology geometries.

After modeling, stl is exported, and in our case the print on a uPrint, here are some pictures of the process.

To print use CatalystEX.

We print the ABS in a uPrint.

Here a picture of the printing process.

Here the final result of printing.

This is the back of the object.

_3D scan an object (and optionally print it)

For the activity 3D, I will use 123D Catch scanner, select two objects, one simple and complex.

high density cube cut.

Sculpture by artist Federico López Castro.

I used a rotating basis to control the movement of the object.

_conclusions

After the great success of 3D printing in recent years, it would be superfluous to say that knowledge of 3D modeling is essential, on the other hand it is not only matter of modeling, there are options such as scanning to capture the physical world, here the scanner 3D is also very important.

In this activity try to control geometry using different geometric topology, but in the end to send it to print was only one 3d stl, this makes me think; A few years ago scanning and 3D modeling was a science of very few, today is surprisingly affordable to almost everyone.

I think beyond 3D modeling techniques, the success of 3d printing, makes me think of the democratization of these technologies, and I wonder if one day all will be able to develop our own microcontrollers and not only the PCB.

_files

petri 3d
Scan

Update: in the activity of machine design, design a prototype of a 3D scanner.. >>>
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Original source: http://academy.cba.mit.edu/classes/scanning_printing/index.html

Contact:  fernando.meneses@udem.edu / fernandomeneses@nodolab.com /  f  /  in  /  g+ / b / v / mx / w