RAPID PROTOTYPING

MECHANICAL

2147 Om Sonawane S219042 0120200

2152 Ashutosh Deshmukh S219047 0120200

2153 Sairaj Pise S219048 0120200

2156 Harshal Wadibhasme S219051 0120200269

2160 Pritam Chavan S219054 0120200

2168 Nikhil Satbhai S219061 0120200316

Content:-
• Introduction
• Concept Drawing
• CAD modelling
• Slicing in CURA
• G-code generation
• Print
• Bill of Material
• Application
• Advantage
• Limitations

 Introduction:-
A folding table is a type of folding furniture, a table with legs that fold up
against the table top. This is intended to make storage more convenient and to
make the table more portable. Many folding tables are made of lightweight
materials to further increase portability.
A folding table is one that you can collapse in half or more for a quick
instalment, movement or storage. These tables are often made of light
materials that you can easily move around from one place to the other.
 Concept Drawing:-

 CAD Modelling:-
 Slicing in CURA:-
In 3D printing process there are many different
forms of 3D printing some of which use powder
material to build objects whereas others use liquid
material to build objects. Nearlly all types of
process required slicing.
Slicing 3D models means taking the 3D design (
usually in stl format) and slice it into individual
layers.
Slicing is necessary for 3D printing because it
translates the 3D drawing into a language that 3D
printer can understand and print.
Here to slice the model we use ultimaker cura. It is
easy to use, it have dual extrusion, in cura time &
material estimation are exact & it creae support
structure.
Here according to printing parameters we adjust
model parameters in cura software like thikness,
infill density, layer height etc.
Ex: Initially the required time for slicing is 11Hr
22mins after increasing in layer height the time
required for slicing is reduced.
 G-code Generation:-
G codes direct the machine motion and function.
Basically G-code is programming language for
CNC machine. G-codes stand for “Geometric
Code” . The G- command instruct the machine
where to move how fast to move & what path to
follow. Here each line of code tells machine to
perform one discrete action including position,
speed, rotation etc.
 3D Print:-

 TIME ESTIMATION
Infill: 00:18 3%
Inner Walls: 01:49 17%
Outer Wall: 01:31 14%
Retractions: 00:39 6%
Skin: 06:18 57%
Skirt: 00:07 1%
Travel: 00:15 2%

 MATERIAL ESTIMATION
Custom Material 5.58m 44.2g € 0.00

 Bill of Material:-
 Raw materials Cost : Rs.1200
 Machine Cost for one product : Rs. 300

 Electricity Cost :
Electricity Cost = 12 Unit × Rs. 7.34
Electricity Cost = Rs. 88.08
 Labour Cost : Rs. 300

Total Cost:- Rs. 1888.08

 Application:-
Folding tables are used in homes, schools, churches, and other buildings
that have rooms intended for various functions. Folding tables can be used for
sit-down activities, and then easily removed and stored out of the way when
open space is needed.
While there are different models of folding tables, the basics are always
the same. These parts of a folding table make it what it is and give you the
convenience of their easy utilisation

 Advantages:-
1. Space saving
One of the most important advantages of buying Foldable
furniture for homes is that it takes minimum space inside your homes
which in turn gives a lot of empty space as well to arrange your favourite
decorative items. The space-saving furniture solves many problems and
is designed to fit into your space comfortably.

2. Easy to carry
One of the most challenging tasks which arise while shifting home
is moving heavy furniture from one place to another. Also while moving
the furniture to a newer place, most of the time our furniture gets
damaged due to starches, etc. But in case you buy foldable furniture,
then these kinds of problems will not arise at all as foldable furniture is
easier to shift from one place to another. They can be easily moved from
one place to another.
3. Can entertain many guests
Another important and impressive advantage of having foldable
furniture inside your homes is that they act as a support when so many
guests arrive at your place and don't have adequate seating
arrangement for all of them. Just grab a few foldable chairs, and you are
ready to offer a comfortable seating arrangement for all guests and
when they leave, you can again fold them and keep them at their place.

4. Affordable Prices
Another important reason which needs to be considered is that
foldable furniture is much cheaper as compared to bulky furniture that
takes much of the space inside our homes. These foldable pieces of
 furniture are comparatively lightweight and much easier to handle or to
be moved around in the house.
 Limitations:-
1. Low Durability
Most of the folding table and chairs are made of aluminium,
plastic or other types of lightweight metal. If you see it from how long it
will stand, we can say that it can last longer. However, the lightweight
metal means that it doesn’t have enough strength to support the weight
too long or too often. Therefore, if you plan to use the folding furniture
like this for everyday usage, it will be easily damaged and even broken.

2. Usefulness Problem
Mostly, this furniture is only used for a specific occasion, for
example, when you are holding a party at your place. However, if you
don’t have those kinds of event, you won’t need to use it. That means
you need to keep it, which can take a lot of space in your house. By
keeping the table and chairs without using it for a long time that means
you also need to face that it will be damaged because of the aging or
other factors. It means you must spend more time and even money to
keep its condition.

3. The Design Problem