3D Printers: An Overview of Types and Specifications

Traditional printers are not capable of producing 3-Dimensional (3D) prints. This limitation often requires more time and effort in designing and developing prototypes. Fortunately, 3D printers are now available, capable of printing 3D documents and pictures.

These printers accept .stl files and convert them into gcode files. The gcode files are then used to print the layers one by one, building the 3D object. 3D printers are invaluable for quickly checking mechanical designs and ensuring proper fitment.

In contrast to traditional printing processes where you need to wait for prototype films, 3D printing allows for immediate physical evaluation of designs.

There are two primary types of 3D printers:

• DIY (Do It Yourself): These kits require assembly using a manual.
• Assembled: These printers arrive ready-to-use, allowing you to start printing immediately.

The following figure depicts the mojo 3D printer manufactured by Stratasys ltd.

Key Specifications to Consider

Before purchasing a 3D printer, consider the following specifications:

• Maximum Print Size: The largest dimensions the printer can produce.
• Horizontal and Vertical Resolutions: The level of detail the printer can achieve.
• Print Speed: How quickly the printer can complete a print job.
• Number of Print Heads (Extruders): The number of different materials or colors the printer can use simultaneously.
• SD Card and Display Support: Allows for standalone printing without a computer connection.

An SD card allows the printer to store print files and operate continuously without needing a constant computer connection.

Carbon fiber materials are often used in 3D printers, typically in the form of composites, for their strength and lightweight properties.

Assembled Desktop 3D Printer Manufacturers

Software Tools for 3D Printing

Several software tools facilitate the 3D printing process.

• Slicer: Helps represent 3D printing geometry, preparing the model for printing.
• TinkerCAD: Can convert normal image files into 3D image files.

DIY 3D Printer Manufacturers