In this blog, we are going to discuss what FDM printing is, what are the print parameters, and how it works.
Being one of the top service providers of 3D printing in Hyderabad, we have a clear idea about fdm 3D printing.
FDM stands for Fused Deposition Modeling is a material extrusion method of additive manufacturing. In this, the materials are extruded via a nozzle and joined together to make 3D objects.
When it comes to FDM, its standard process differs from material extrusion techniques. The techniques include concrete, as well as food 3D printing by making use of thermoplastics as feedstock materials. It uses this mainly in the form of pellets or filaments.
FDM is one of the widely popular 3D printing technologies and is the easiest way to 3D print stuff.
FDM printers are more straightforward as compared to resin 3D printing and as a result, it dominates the 3D printing market. Moreover, as compared to powder-based methods like SLS 3D Printing, it is cheaper.
FDM is characterized mainly by the extrusion and selective deposition of thermoplastics into layers, which develops a 3D object.
Print Parameters for FDM 3D printers
With most FDM systems, you can adjust the parameters of several processes.
It includes the temperature of the nozzle and builds platform, builds speed, the height of the layer, and the speed of the cooling fan.
Now, if you’re a designer, then you don’t have to worry about these adjustments. This is because an AM operator probably has that covered already.
When it comes to FDM 3D printing, there are some important factors to consider. It includes build size and layer height. The common build size of a desktop 3D printer is 200 x 200 x 200 mm but industrial machines can reach sizes of 1,000 x 1,000 x 1,000 mm.
If you’re using a desktop machine for printing your part, then you can break a big model into smaller parts. After that, reassemble it.
The measurement of the height of FDM’s typical layer is between 50 and 400 microns. Moreover, printing shorter layers provide smoother parts and captures curved geometries more accurately. However, printing taller layers allow you to create parts fastly and for a lower price tag.
How does 3D Printing Function?
The functioning of a 3D printer is done by depositing melted filament material over a developed platform layer by layer until you get a completed part.
FDM makes use of digital design files, which are uploaded to the machine and translated into physical dimensions.
When it comes to FDM, the materials include polymers such as ABS, PETG, PEI, and PLA which the machine feeds as threads via a heated nozzle.
If you want to operate an FDM machine, then you need to load a spool of thermoplastic filaments into your printer. Wait for the nozzle to reach the required temperature. After that, the printer feeds the filament using an extrusion head, as well as the nozzle.
This extrusion head is attached to a 3-axis system, which enables it to move across the X, Y and Z axes.
The printer extrudes the material melted in thin strands. Then, it deposits them layer by layer along a path determined by design. Once the depositing process is over, the material will get cooled and be solidified. Now, you can attach fans to the extrusion head for accelerating cooling in some cases.
When it comes to filling an area, several passes are required like coloring in a shape using a marker. Once the printer finishes one layer, the build platform descends and the machine starts working on the next layer.
However, in a few machine setups, the extrusion head moves up. This entire process will repeat until the part gets completed.
We believe that you’ve got a clear picture of FDM printing.
However, if you need more clarification on this, feel free to reach us.
We are one of the leading providers of 3D printing services in Chennai.