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Workshop On 3D Printing

The document discusses a workshop on 3D printing and rapid prototyping. It describes how a 3D printer using fused deposition modeling works by unwinding a thermoplastic filament that is selectively deposited through a heated nozzle to build a prototype in layers. The steps for making a rapid prototype are outlined as converting a CAD model to STL format, importing it into 3D printing software to slice layers, and printing. The main purpose of rapid prototyping is to save costs associated with tooling and mold making by testing designs before full production.

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Ajay Bains
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45 views2 pages

Workshop On 3D Printing

The document discusses a workshop on 3D printing and rapid prototyping. It describes how a 3D printer using fused deposition modeling works by unwinding a thermoplastic filament that is selectively deposited through a heated nozzle to build a prototype in layers. The steps for making a rapid prototype are outlined as converting a CAD model to STL format, importing it into 3D printing software to slice layers, and printing. The main purpose of rapid prototyping is to save costs associated with tooling and mold making by testing designs before full production.

Uploaded by

Ajay Bains
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Workshop on 3D Printing & Rapid Prototyping

(Conducted by CAD Desk)

In this workshop, we get the knowledge about the 3D printing and rapid prototyping and its use in the
industries along with its application in the modern era. For the 3D printing a FDM fused deposition
modeling machine is used.

Prototype: A prototype is a physical model of an individual component or product. A prototype has


properties such as the product geometry as modeled
in the cad software with same physical shape.

This real component helps:

 in obtaining the necessary information


generation such as appearance
 Check the feasibility og new design
concepts
 Assess the fit of complex mechanisms
 Make moulds for wax cores in castings.

Working of 3D printer:

The 3D printer that we have seen in the workshop


was working with the FDM (fused deposition
modeling) technique.

In which, a thermoplastic filament is unwound from


a coil and supplies material to an extrusion nozzle. The nozzle is heated to melt the plastic and has a
mechanism which allows the flow of plastic to be turned on and off. The nozzle can be moved in
horizontal as well as in vertical position, but table is remaining stationary on which prototype is made.
Prototype is made in the layers.

Steps followed to make a rapid prototype:

 Making a cad model in any cad software.


 Then converting and saving as STL (standard triangular language) file.
 Import this file into 3D printing software such as CURA 2.0
 Change the scale if required.
 Now make the sliced layers of the model which is the path to be followed by the nozzle while
printing.
Main purpose of using rapid prototype is to save the cost of tooling , mould making process before
production which can be result as wrong product design and impractical design which can lead to failure
etc.

The products which will not manufactured after single or double time, leading to wastage of mould dies
after single use can also use rapid prototyping as a product. For example space shuttle made by NASA is
the example of rapid prototypes.

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