something about 3d printer RAOIDBOT 3.0

1. Department of mechanical engineering
Experiment 09
Aim: Demonstration of 3D Printer.
Fig. RapidBot 3.0
Introduction
RapidBot 3.0 is a latest generation 3D printer, capable of printing 3D objects RapidBot 3.0 uses
high quality Linear motion guides. So it is very easy to build. Self-ensures rigid frame with easy
steps(Without need of any measurements, during building) Any person can easily build it by
following Manual.

2. Department of mechanical engineering
General principles
Modeling
Main article: 3D modeling
3D printable models may be created with a computer aided design (CAD) package or via a 3D
scanner or via a plain digital camera and photogrammetry software.The manual modeling
process of preparing geometric data for 3D computer graphics is similar to plastic arts such as
sculpting. 3D scanning is a process of collecting digital data on the shape and appearance of a
real object, creating a digital model based on it.
Printing
Before printing a 3D model from an STL file, it must first be examined for "manifold errors,"
this step being called the "fixup." Especially STLs that have been produced from a model
obtained through 3D scanning often have many manifold errors in them that need to be fixed
Once that is done, the .STL file needs to be processed by a piece of software called a "slicer,"
which converts the model into a series of thin layers and produces a G-code file containing
instructions tailored to a specific type of 3D printer (FDM printers). This G-code file can then be
printed with 3D printing client software (which loads the G-code, and uses it to instruct the 3D
printer during the 3D printing process).
Printer resolution describes layer thickness and X-Y resolution in dots per inch (dpi) or
micrometers (µm). Typical layer thickness is around 100 µm (250 DPI), although some
machines can print layers as thin as 16 µm (1,600 DPI).[18]
X-Y resolution is comparable to that
of laser printers. The particles (3D dots) are around 50 to 100 µm (510 to 250 DPI) in diameter.
Construction of a model with contemporary methods can take anywhere from several hours to
several days, depending on the method used and the size and complexity of the model. Additive
systems can typically reduce this time to a few hours, although it varies widely depending on the
type of machine used and the size and number of models being produced simultaneously.
Traditional techniques like injection moulding can be less expensive for manufacturing polymer
products in high quantities, but additive manufacturing can be faster, more flexible and less
expensive when producing relatively small quantities of parts. 3D printers give designers and
concept development teams the ability to produce parts and concept models using a desktop size
printer.

3. Department of mechanical engineering
Finishing
Though the printer-produced resolution is sufficient for many applications, printing a slightly
oversized version of the desired object in standard resolution and then removing material with a
higher-resolution subtractive process can achieve greater precision.
Product description:
1.Technical Specification:
• Machine size 400 x 200 x 320 mm
• Build size 220 x 220 x 165 mm
• Nozzle Diameter : 0.4mm
• Layer Thickness : 0.1mm
• Speed : 60 mm/s
• Positioning Precision : 27 microns
• Input Format : STL
• Software : Pronterface (Available on site for free under Download section)
•System Compatibility : Windows 7 and Vista
• Power Supply : ATX, 450W
• Weight (Kg) : 12
2.Features of RapidBot3.0 3D Printer
1) LCD Controller Support
2) It uses high quality linear motion guide.
3) PrintrBoard REV D and Power Supply are placed at the bottom to give clean and neat look.
4) Mechanically more Stable Compact design.
5) Improved PrintBed Adjustment.
6) Improved Extruder Design and Z axis.
7) Accurate and easy belt placement.
8) Large build volume with easy accesibility.
9) Uses high quality acrylic from: www.perspex.co.uk
10) Integrated Power supply for both PrintrBoard and HeatBed.
11) Uses high quality GT2 belt and pulley(Aluminium), to give high accuracy.
12) Self locking design ensures rigid frame.
13) Extruder is designed for easy filament changing.

4. Department of mechanical engineering
Dual Extruder Kit Includes :
1) Dual Extruder Board
2) Complete Extruder Set.
This complete RapidBot 3.0 3D Printer contains :
1)PrintrBoard Electronics – with presoldered endstops with molex connectors and high
temperature heat cables for connecting Heater and Thermistor.
2) All hardware, bearings, bolts, nuts, washers, Linear motion guide, Flange Bearings, Flange
nut etc.
3) All acrylic sheets (Side plates, Bottom plate, Top plate, Middle plate, Y frog support,
Extruder base, Extruder motor plate, Heated printbed)
4) M8 Threaded rods (255mm)
5) Chrome plated Smooth rods (292mm)
6) Stepper Motors – with presoldered Molex connectors.
7) M4 Brass insert piece - for direct drive on motor shaft (5mm inner diameter)
8) Pre-assembled J-Hotend, including G550 Thermistor, Heat Resistor, Cooling fan, etc.
9) Kapton tape 15mm (Insulation of Thermistor legs)
10) Kapton tape 40mm (To print on)
11) High Quality Mk2 PCB Heatbed (214x214mm)
12) Cooling paste (To use between Printbed and Heater blocks)
13) PTFE strain-relief
14) GT2 belts and pulleys
15) Power Supply 350W, Input: AC 100-240V, 50-60Hz, 1.3A, Output: DC 12V, 20A
16) USB and Power supply cables
17) 2GB Micro SD card
18) Extras such as Endstops, Magnetic leveler, Forceps, Few meter of PLA, Plastic tie etc.

5. Department of mechanical engineering
-prepared object in 3D printing
CONCLUSION: