In the Advanced world of 3D printing, one can be easily confused as to what options are the best for beginners to try their hands on. The variety in the kinds of 3D printers and the material that goes into them for creating exceptional 3D models and objects is so vast and full of options that it gets a handful of jobs for a beginner to pick the right thing. To make things convenient for you, we are here to present the breakdown of what 3D printing is like and how you can go about it efficiently. This article will serve as a stepping stone in your journey of 3D printing.
Beginners guide to 3d printing:
Choice of Printer
First things first, you need to decide which printer is the right choice for you. Your needs and expectations from any 3D printer depend heavily on whether you are going to use it as a hobbyist or as a business benefactor. If you are getting into this art because of your passion for it, then we should suggest printers that are not too hard on the pocket to buy and will give you a satisfactory result. Most hobbyists use FDM printers, which are fuel-deposition model printers. They create a relatively thin layer of filament (material) to create the object, which is also cheap. If you are using it for your business, you would need a powerful printer that has relatively more features and is assembled as well. These printers lie in the category of SLI printers, which stands for Stereo Lithography printers. Although SLI printers are expensive, they produce high-quality prints. These printers use a laser or projector to harden the resin, and that’s how they print your 3D model. For hobbyists, the best printers are the “Creality Series”, “FlashFirge”, “TierTime”, and “SeemeCNC Rostock series”. Whereas, for business beginners, ” Pulse”, “Ultimaker”, “LulzBot”, “CraftBot”, and “SeemeCNC” are the best options.
Choice of Filament
The next thing you need to learn about 3D printing is what filaments are and how they are used. So, the filament is the material that the printer melts to create objects. Hence, you can say that it is the primary requisition for 3D printing. Filaments come in the form of a spool weighing 1 kg with a diameter of 1.75mm. It is attached to the nozzle of the printer, where it is heated at high temperatures to melt it and form objects. One can use many types of filaments, but the most frequently used are PLA and ABS. PLA comes in a variety of colours and is relatively affordable. As it is less stringy and sticky than ABS, it is also easier to use. PLA is also less toxic than other types of filaments; however, it is comparatively less durable than ABS as it is malleable. Other filaments you can find in the market include nylon, carbon fibre, TPU, wood, metal, and glow-in-the-dark. You can customize your objects by using any of these filaments to give a realistic look to your object.
First Model Print
Now, the most vital question is, “What do you want to print?” Experts suggest printing the mainstream 3D models on your printer is best if you’re not used to the setting yet. Multiple websites like “Thingiverse.com” and “myminifactory.com” present you with ample options to print. These websites feature the “ready-to-print” models that you can print and get the hang of your printer settings. This practice will not only help you fix your printer settings but will also help you compare your printed object with others through the abundant tutorials present on the web. This way, you can comprehend what went wrong with your print. But there’s one thing you must not forget! The first few models you print will not turn out perfect. You will have to take your time to get used to this magical machine.
Slicing Software
Next on our list is the “Slicing Software”. This software is where you set all the settings for your printer. It commands your printer to print your object in a certain manner. You can set your printer’s dimensions, colours, temperatures, etc.. Some popular slicing software includes “MakerWare”, “Cura”, and “Simplify 3D”.
3D Printing Model
Coming to the process of how 3D printing works! So you can either create a 3D Computer-Aided Model or get free ones from online forums, as we mentioned earlier. You then export that model as a “.STL” file into the slicing software, where you set all the settings for your print. Consequently, the slicer generates a “.G-code” file, which is sent to the printer. The filament attached to the extruder is then extruded according to the command, and your 3D object comes to life!
Extruders
Now, let’s focus our attention on “extruders”. There are two types of extruders: one is single, and the other one is dual. Most printers come with a single extruder, and they only extrude one type of filament. This means you can only have one colour and material coming out of the extruder at a time when using a single extruder. On the other hand, dual extruders can print two different types of materials or filaments at one time. This enhances productivity and creativity when printing 3D objects.
Heated Bed
Once the printer starts extruding the filament, it sets on your printer’s heated bed. Here, it is important to note that your adhesion settings in the slicer software must be set appropriately to keep your object adhered to the bed. These beds are categorized as glass beds and printer’s tape beds. Glass beds are less durable and sturdy than printer’s tape beds because once you scratch the bed to remove your object, the entire glass bed becomes useless, and you have to change it, which incurs an additional cost. On the contrary, painter’s tape beds are not as vulnerable to scratches and are definitely durable.
Conclusively, these factors must be considered when getting into 3D printing, as doing so will save you the trouble of wasting your material and your time.
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What is 3D printing and how does it work?
3D printing, also known as additive manufacturing, is a process of creating three-dimensional objects from a digital model by adding material layer by layer until the final object is formed. Unlike traditional subtractive manufacturing processes, which involve cutting away material from a solid block to create a shape, 3D printing builds up the object layer by layer, which allows for more complex and intricate designs to be produced.
The basic steps involved in 3D printing are as follows:
Designing the Model: The first step is to create a digital 3D model of the object you want to print. This can be done using computer-aided design (CAD) software or by using 3D scanning techniques to capture the shape of an existing object.
Slicing the Model: Once the digital model is ready, specialized software is used to slice it into thin horizontal layers, which the 3D printer will then recreate one layer at a time.
Printing the Object: The 3D printer follows the instructions from the sliced model and deposits material layer by layer according to the design. The material can vary depending on the type of 3D printer and the desired properties of the final object. Common materials used in 3D printing include plastics, resins, metals, ceramics, and even food-based materials.
Post-Processing (Optional): Depending on the type of 3D printing technology and the specific requirements of the object, post-processing steps such as cleaning, curing, sanding, painting, or assembly may be necessary to finish the object and achieve the desired surface finish and mechanical properties.
What are the 4 types of 3D printing?
The four main types of 3D printing technologies are:
Fused Deposition Modeling (FDM) or Fused Filament Fabrication (FFF): This method involves extruding thermoplastic filaments layer by layer to build the object.
Stereolithography (SLA): SLA uses a vat of liquid photopolymer resin cured by ultraviolet (UV) light to create solid objects layer by layer.
Selective Laser Sintering (SLS): SLS utilizes a high-powered laser to selectively fuse powdered material, typically nylon or polyamide, into a solid structure, layer by layer.
Digital Light Processing (DLP): DLP is similar to SLA, but instead of using a laser to cure the resin, it uses a digital light projector to flash a single image of each layer onto the surface of the resin, curing it all at once.