SCAN DATA
Softwares and Apps for 3D scanning
123D Catch: http://www.123dapp.com/catch
(FREE/lowest quality)
AUTODESK REMAKE: http://remake.autodesk.com/about
SCANNERS
Next Engine: http://www.nextengine.com/
Creaform : http://www.creaform3d.com/en
(School’s lab scanner)
POLY GROUPS:
Select poly groups: control + shift + click on the group.
To invert selection: control + shift + click and drag on the
document.
Show all groups: control + shift + click on the document.
World axis:
Z axis: blue line
Y axis: green line
X axis: red line
Positive direction: coming towards you in space.
Negative direction: going further in space.
PREVIEW: it enables you to show you its orientation and move
the model and reposition it where you want. Move the model in the preview
window until desired position and then press “store”. This is much faster than
using the transpose line.
By changing the color of the original scan it will give you
a visual cue of the differences between the two models. Use the transpose line
to align the models.
To scale the model without using the alignment put the
transpose line over the tip of the nose.
Once you scaled the two models, use the move brush to move
around the mesh and match it as close as possible to the 3D scan. Once you have
the mesh as close as possible to the liking of your scan, use the project
button in the subtool palette. Make sure to create subdivision levels as you project,
so it lets the mesh adapt to the details of the scan.
Create insert mesh: Press “B” for brush and press the “create
insert mesh” button. Anything that you create on Zbrush can be made into a
brush using this function.
To adapt a mesh to a surface: Select your insert mesh brush
that you created. Go to the modifiers menu in the brush palette and raise the
projection strength slider. Use the ZIntensity slider to make the geometry
adapt to the surface.
ZREMESHER
Geometry palette > ZRemesher
Target Polygons Count slider: lets you control the amount of
polygons in the geometry.
ZRemesher button: cleans geometry / atl + click: alternate
algorithm (geometry flow).
You want to have a solid silhouette with the least amount of
polygons.
ZREMESHER GUIDES brush: pushes the geometry to the direction
you want it to go. Draw them out over the geometry. To delete press “alt” and
draw over the live you want to delete.
AdaptiveSize slider: it allows to calculate the range in
geometry around the model. 50 is the preferred number to have it on. The lower
slider goes the less size difference between polygons.
Curve Strength: Allows to force geometry flow around the
curves drawn with the ZRemesher Guides brush.
FreezeBorder button: next to ZRemesher button. It allows the
zremesher to maintain the edge fidelity.
FreezePolygroups button: Remeshes keeping the polygroups.
Use Polypaint button: Allows you to tell Zbrush to be twice
as dense (polygons) where the poly paint is. The slider allows you to measure
the density in the geometry.
RESOLUTION CHART:
1024x1024: 1K
2048x2048: 2K
4096x4096: 4K
8192x8192: 8K
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For any kind of print you will need to fill up this kind of paper, that can be found in the 3D printing room. Each printer has its own kind of paper to fill up ( like the blue one- for the Object printer). You will fill it up while setting up your project for print. Ask people that work there for advices- they are nice and ready for communication.
The price really depends on the size and material that you are going to use- you will be able to know the price only after you'll set up the printing ( as it counts how much material will be used for the actual thing + for the support).
For object they have 2 kinds of material - matte and glossy. Discuss what kind of material is better for your print. The system places objects on the tray automatically, but watch out and adjust the parts in a way to protect details ( like don't put the side with the most details downwards as you will cut off the supporting material from this side).
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The price really depends on the size and material that you are going to use- you will be able to know the price only after you'll set up the printing ( as it counts how much material will be used for the actual thing + for the support).
For object they have 2 kinds of material - matte and glossy. Discuss what kind of material is better for your print. The system places objects on the tray automatically, but watch out and adjust the parts in a way to protect details ( like don't put the side with the most details downwards as you will cut off the supporting material from this side).
