In this article, you will discover why 3D printing time depends on factors like size, maintenance, and complexity and how software can give an estimate.
The time it takes to 3D print a part can vary significantly based on several factors. There's no one-size-fits-all answer as different parts, pellet extruders, settings and materials will result in different print times. Here are some of the key factors that influence the duration of a large format 3D printing process:
💡 All factors are connected to each other, they all go back to the same principle; temperature.
1. 3D print wall thickness:Various settings like wall thickness and double parameters for the wall affect print time. In general; the thicker the wall, the slower the print. A thicker wall means that you have to use more material, which contains more energy (heat) which has to disappear.
Layers need to cool down to a certain temperature for the new layer to be put on top. The smaller the bead, the faster it can cool down so the faster the 3D printer can put a new layer on top of it.
2. Layer height (resolution):The layer height you choose affects the print time in large scale 3D printing. Smaller layer heights have a bigger surface for the heat to disappear compared to bigger layers. On the other hand, the amount of layers will increase by making the layers a bit thinner.
3. Part size:Larger parts don’t necessarily have to take longer to print than smaller ones. A longer layer would only mean that the large format 3D printer has to output more material in the same time frame. Depending on the application, you need to choose the right pellet extruder. Ask your CEAD Engineer to help choose the right pellet extruder.
Additionally, parts with intricate geometries or fine details will generally take longer due to the precision required for their fabrication.
4. Part complexity:The complexity of the part can slow down the production process. As previously discussed, the layers need a certain time to cool down, this means that they also need free air around the part in order to cool this layer down. If a layer is very complex with a lot of layers next to each other, it cools down slower.
5. 3D printer print speed:Faster print speeds can reduce overall print time, but they might compromise the surface finish and accuracy of the 3D printed part. Slower print speeds generally result in better-looking 3D prints, although they heavily decrease the layer adhesion.
6. 3D print material and fibers:Different materials have different melt and cooling characteristics. Some materials might require lower printing speeds or extra cooling time between layers, which can influence the overall print time.
7. 3D Printer maintenance:A well-calibrated and maintained 3D printer is more likely to print accurately and efficiently. Poorly calibrated 3D printers might require more time due to errors and print failures.
To estimate the print time for a specific part, you can often find an estimated time in your slicing software before starting the print. Keep in mind that these estimates are rough and can vary based on real-world conditions. It's a good idea to add some buffer time to your estimates to account for unexpected factors or delays.
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