3D scanning and printing

Back to Mónica Pedro ←main page ←Assigments

    individual assignment:
        -  design and 3D print an object (small, few cm3, limited by printer time)
             that could not be made subtractively
        -  3D scan an object (and optionally print it)

    group assignment:
      - test the design rules for your 3D printer(s)

Design a 3D object that could not be made substracyively

an Hinge for my final project...

Fusion 360 model to download

them I went to print it...

Exported the 3D model from Fusion to STL and through Cura generated the Gcode...

So tried two positions for the same model... and got this conclusion...

.... which is: It should be printed flat, since only this version works as hinge, the version printed top does not move...

In the Lab... previous experiences...

The Lab printer is a Ultimaker 2+

needed to instal Cura

and the process to print was:

import STL to Cura
set MATERIAL - PLA
set NOZZLE - 4 mm
set Layer height - 0.1
set Infil - 20%
select NOZZLE - 4 mm
Generate Suport - OFF
Build Plate Adhesion - OFF
Generate GCODE and sabe in a SD CARD

and this are the first prints to know how to operate the machine

configuration for the first prints...

finaly some objects to play with Geometry...

---------------------------- (-).(o) -----------------------

Shoe sole

Changing the Printing process and doing something not possible other way

I'll try the Flexible Filamente using larger NOOZLE, to evaluate both the material and the viability of such product

3D modeling in Fusion 360

I'd decied to design a ergonomic modular sole so that the Printer tests would be quiker ;-)

Thikness of the sole: 3mm

Changing the NOOZLE

steps:

- spray the Printer bed with special Spray for cleaning

Hot the Noozle head, by choosing on the menu - Settings -> change material

When the temperature is high (around 210C), use the special tool to change the Noozle

... make sure is tight enough
On the printer menu return to main menu and fallow the indications to change material, I'll use the Flex

Configuring CURA for the new material

When printing.....

Final print... its not very bad, but NOT GOOD for the purpose...because it's not flexible and soft enought to give a "no Shoo sense"

New trial

I'll try a print without Infil...INFILL = 0

and the Printing becomes quite strange....

Look fuzy... but it has its qualities.. flexible... soft

another trial

I'll try with lower thikness of the sole...EXTRUDE = 1.5mm

sent it to Cura

and then this was happening in the printer

the BAD RESULT

3D Scanning

Learning

Photogrammetry: is the art and science of making measurements from photographs, especially for recovering the exact posotions of surface points. Photogrametry is as old as modern photography...

HP 3D Scan

Objective: scan a insect that's in danger

calibrating the Scan

xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx

Scaning scarab

Editing the Scanned file

programs in use

MeshLab

TIP: to deal with such huge file, origanly with 909 Mb, its to open it in MeshLab and apply reduse complexity

MeshMixer

TIP: easy to clean the extra data that does not belong to the bug

Saved to STL in order to import it in Fusion 360 and model my BUG

Youtube Video -

important concepts:

STL File
- Native to Stereolithography
- "Standard Triangle Language"
- "Standard Tesselation Language"
- Unstructured Triangular
OBJ File
- "objective File"
- Contain Color and Texture Data on the outer surface
- Unstructured Triangular Surfaces
BREP Format
- Boundary Representation
- Completely solid & watertight
- Topological & geometry info

In FUSION 360

Insert Mesh: Take some time to position and center the object
Turn Off the Capture Design History
Change visual style to: Shaded with visible edges only
MESH: Reduce
- Select Body from Browser menu
- Reduce Type: Adaptative
- Reduce Target: Face Count
- Density: 30000 (it was 80360)
- Preserve Boundaries: YES
MODEL workspace
- Right click on the objectmesh
- Mesh to BREP... New Component... OK

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