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Additive Manufacturing
Additive Manufacturing
3D Printing is also called additive manufacturing. Additive Manufacturing is when a raw material is placed, over time, one layer at a time, to build up a three-dimensional object.
vs. Subtractive Manufacturing
vs. Subtractive Manufacturing
The opposite of additive manufacturing is Subtractive Manufacturing where material is cut away from a solid material until the object that is desired is created. Wood carving is an example of subtractive manufacturing.
What can 3D printing do?
What can 3D printing do?
-Small Batch Manufacturing
-Small Batch Manufacturing
3D printing is great for “small batch” manufacturing or “one off” manufacturing where you only need a very limited number of objects created.
-Using Existing Digital Designs for Physical Products (click on the links below to see the sites)
-Using Existing Digital Designs for Physical Products (click on the links below to see the sites)
FDM - FUSED DEPOSITION MODELING
FDM - FUSED DEPOSITION MODELING
FFF - Fused Filament Fabrication
FFF - Fused Filament Fabrication
MakerBot's 3D Printers rely on a technology called Fused Deposition Modeling or FDM. It uses an extruder, which acts similar to a hot glue gun. Plastic filament is fed in through the top, is melted at 215℃, and finally is “extruded” out of a small nozzle into the layers that build a 3D print.
CARTESIAN COORDINATES
CARTESIAN COORDINATES
MakerBot 3D Printers know where to move using a three dimensional cartesian coordinate system which defines every point of a 3D model with a unique position along the X, Y, and Z axes. The coordinates are fed to the printer from MakerBot Print and MakerBot Mobile.
TED Talk on 3D Printing
TED Talk on 3D Printing
PRINTING WORKFLOW
PRINTING WORKFLOW
STEP 1: 3D FILE
STEP 1: 3D FILE
In order to 3D print, you must have a 3D file. Here are a few ways to get a file:
STEP 2: PREPARE
STEP 2: PREPARE
Before sending a 3D file to your 3D printer, you must prepare the file. Preparing an object in our softwares translates your objects into a language the 3D printer can understand. This is referred to as slicing.
RAFTS AND SUPPORTS
RAFTS AND SUPPORTS
PRINTS WITH OVERHANGS
PRINTS WITH OVERHANGS
An overhang is when a layer extends outward, potentially unsupported, over the previous layer.
If your models have overhangs greater than 68 degrees (measured from the vertical axis) for certain printers, then you will need to print with support material.
WHAT ARE RAFTS & SUPPORTS?
WHAT ARE RAFTS & SUPPORTS?
Supports are printed scaffolding for overhangs. You can turn on supports in slicer program.
A Raft helps with adhesion to the build plate by laying down an even flat foundation. Rafts are turned on by default in certain slicer programs.
COMPLETED PRINT
COMPLETED PRINT
Both rafts and supports are physically removed after the print is finished. Once rafts and supports are removed, your model is complete!
INFILL PERCENTAGE
INFILL PERCENTAGE
Infill is the support structure inside your object. Changing Infill affects your print’s density. A higher percentage will result in a more solid object, while 0% infill will make your object hollow.
NUMBER OF SHELLS
NUMBER OF SHELLS
Shells are the outer layers that make up the surface of your prints. Adding more shells does not affect its external dimensions, but can make your object stronger.
LAYER HEIGHT AND PRINT RESOLUTION
LAYER HEIGHT AND PRINT RESOLUTION
Layer Height, also known as Print Resolution, changes the surface quality of a 3D print. Low resolution means the layers are thicker, objects print faster, and the surface quality is rougher. High resolution means the layers are thinner, objects print slower, and the surface is smoother. We suggest printing at our standard print quality.
STEP 3: PRINT
STEP 3: PRINT
Follow specific steps of the printer being used. Refer to the manuals if necessary.
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