3D Printer Parts: Beginner Guide

 Introduction

 Nowadays 3D printing is more popular and you can see a lot of people getting into the business. The greatest strategy for entering into the 3D printing industry is to start from the basics. Learn about all the components of a 3D printer before you start looking for the best 3D printers for beginners or the best affordable 3D printers. By knowing 3D printing parts, you can select the right 3D printing machine according to your requirements, and upgrade and modify parts for specific applications.

So, start with what is the 3D printer.

3D printing is a process of making a three-dimensional physical object from a digital file. It is done by applying multiple layers of material until the design is complete. This material is in the form of liquid or powdered plastic, metal, or cement.

What are 3d printer parts?

Let’s learn about the components that go into assembling a 3D printer. It helps to understand the working of a 3D printer.

• Controller Board

• Filament

• Frame

• Stepper Motors

• Belts

• Threaded rods

• End Stops

• Power Supply Unit (PSU)

• Print Bed

• Steel sheet

• Print Head

• Feeder System

• Dual Extrusion

• User Interface and Connectivity

    • File Transfer Options

Controller Board

The Controller board is the brain of the computer because it sends out instructions to all other parts including the motors. MKS BASE-L is suitable for 3D printer manufacturers and is used as the main control board.  It reads instruction files (G-Codes) and controls the motors, heat bed, and heater based on the instructions found within the G-Code.

                             

Filament

It is the most important part of 3D printing. It is the source material of printed objects.

The filament is made from plastic which is known as thermoplastic. This plastic is melted in a heated chamber at the tip of a Hot end. It is then squirted out in a very controlled manner along a precise shape and thickness. The shape is an outline of what you want to print and the thickness depends on the settings, usually between 0.1 to 0.3 mm thick. (In standard printers).

                                

Filaments are available in many colors and materials. The basic types of 3D printing filament are

1.      ABS Filament 

2.      PLA Filament 

3.      PET Filament 

4.      PETT Filament 

5.      Nylon Filament 

6.      PVA Filament 

7.      Sandstone Filament 

8.      Wood Filament 

9.      Metal Filament 

10.  HIPS Filament 

ABS filament is used to print plastic automotive parts, moving parts, musical instruments, kitchen appliances, and toys.

PLA filament is the most commonly used material for 3D printing. The PLA prints are very hard. It is used to print for various surgical implants, including surgically implanted pins, rods, screws, and mesh. 

PET filament is suited for food containers like plates and cups.

Nylon is a very strong, ductile, and versatile material. To print mechanical components, machine parts, and structural parts, Nylon filaments are used. You can choose the right filament according to your application.

Frame

The frame helps keep all electrical and mechanical components of your 3D printer together in one place. Variety of frames available in the market. While purchasing frames consider factors including Robustness, Aesthetics, Printing space, Cost, and Assembly. The frame supports the structure of the printer.

Stepper Motors

Stepper motors are so named because they rotate in steps. The stepper motor is used to construct 3D objects in multiple steps. It drives the printer head, printer bed, rods, and screws. Mostly NEMA-17 Stepper Motor is used inside 3D printers.

 

                                  

Belts

                                      

The stepper motor is linked to the drive gears by belts that fit over the gears and allow them to move smoothly with the motor. Belts occur in two types: a long strip with connectors at both ends, or a circular piece with no such connectors.

 

Threaded rods

                                

Threaded rods are used to move the 3D printer head up, down, and in Z-direction. Belts provide x-axis and y-axis movement, whereas threaded rods provide z-axis movement.

End Stops

When components are moved, end stops ensure that the endpoints are designated along the three axes. It specifies the range of motion for each component.

Power Supply Unit (PSU)

For the operation of the 3D printer, a power supply unit is required to supply power. It can be mounted on the frame. You can choose PSU according to the temperature range of the material (filament)used in the 3D printer. It can be also placed in a separate unit contained within a box.

 

 Print Bed

The print bed is available in two types: heated and non-heated. Here a final 3D model is created. To create 3D objects, filament materials are deposited on this print bed. Heated beds are preferred for advanced filament material. A non-heated bed is suitable for PLA.

 

Steel sheet

It is placed on the top layer of the print bed. It helps remove the object after printing easier and prevents it from sticking to the print bed. There are three types of print surfaces: smooth, textured, and satin. Spring steel sheets are easy to maintain and make removing the printed object. Never print directly on a heatbed.

Print Head

The print head consists of a cold end and a hot end. The filament enters through the cold end which is present at top of the print head and goes down towards the hot end. Through this hot end, filament flows out and takes the shape of the object that needs to be printed. A nozzle is present at the hot end which melts solid filament into liquid filament. According to instructions given to the controller board, this liquid filament is pushed out of the filament.

 

Feeder System

There are two types of feeder systems used in 3D printers, Bowden and Direct feeder systems. The feeder system is a part through which filament is fed into the print head.

In the Bowden feeder system, the hot end and the extruder are placed far away from each other. Due to this, the filament has to travel a longer distance to reach the hot end of the print head. In a direct feeder system, the hot end is placed near to extruder so the filament drops directly into the hot end.

The direct feeder system is most commonly used, and it is best for flexible filament but according to your own preference you can choose the Bowden system

Dual Extrusion

The extruder can be categorized into two sections: single and dual. As the name suggests single extrusion means there is only one nozzle present. On the other hand, dual extrusion means there are two nozzles present in one printer head. Or two nozzles are connected with two different print heads.  In this, you can use two filaments to print a 3d object. Dual extrusion is more popular as it has the choice of printing an object using two distinct colors or materials.

User Interface and Connectivity

The user interface helps to measure printer parameters such as temperature and filament levels and control the loading and unloading of filament. Advanced 3D printers come with a touchscreen LCD interface, which is an attractive feature for users.

The latest 3D printer has a wi-fi connectivity option. So, you do not need to stand to monitor the printing process.

File Transfer Options

The interface can help in establishing a Wi-Fi connection between your mobile device or laptop and your 3D printer. Any of the three methods can be used to transfer files.

The most common file transfer option is using SD card/USB flash drive. For this, you need to upload a working printing file to the SD card/USB drive from your computer. Then plug it into the slot present on the 3D printer. And run some commands to start the printing process.

How to create your own 3D model?

To create a 3D model, you need a program. The easiest way to create a 3D model is Thinker Cad. It is an online editor and does not need to install. Tinker cad is a great and intuitive tool for beginners. Here you can create your 3D model directly in the browser window. It is free and easy to operate. Tinker cad is available at www.tinkercad.com.

If you want to start designing more complex objects, or even various components that should fit together, then you need to select a more professional tool. Fusion 360 is a popular option.

Where Can You Buy? 

There are many options available online for purchasing 3D printer parts. As part of my research, you can choose Robu. Here you will find cheap 3D printer parts.  You can find everything related to a 3D printer. You can use an affordable online 3D printing service to print 3D models and get them delivered to your doorstep in as little as two days. Here you will get instant quotations. A variety of 3D printer kits are available at affordable prices. so, you do not need to search for other products elsewhere. 

If you want to buy 3D printer parts you can easily buy them online at https://robu.in/product-category/3d-printer-parts/.  

Final thoughts

3D printer parts are becoming more and more popular, as people are starting to see the potential for these devices. However, there are still some things to be aware of before purchasing these parts. Make sure to do your research and find the best printer according to your needs.