How Long Does It Take to 3D Print: A Comprehensive Guide

With the rise in popularity of 3D printing, many enthusiasts and professionals are curious about the time it takes to complete a 3D printing project. Whether you are a hobbyist or a business owner, understanding the time involved in creating a 3D printed object is crucial for planning and managing expectations. In this article, we will delve into the factors that influence the duration of a 3D printing process, providing you with a comprehensive guide on how long it takes to 3D print.

Preparing the Print Job

Before initiating the 3D printing process, proper preparation is essential. This section will discuss the importance of slicing the 3D model, adjusting settings, and generating the necessary instructions for the printer.

Slicing the 3D Model

Slicing refers to the process of dividing a 3D model into multiple layers, which the printer can understand and print layer by layer. The complexity of the model, the desired level of detail, and the chosen slicer software can all impact the time it takes to slice the model. Large and intricate models with a high level of detail may take longer to slice compared to smaller and simpler models.

Adjusting Settings

Once the model is sliced, adjusting the settings becomes crucial to achieve the desired outcome. These settings include layer height, print speed, infill density, and support structures. Each setting affects the printing time differently. For example, a smaller layer height produces finer details but increases the printing time, while a higher infill density adds strength to the object but prolongs the printing process.

Generating Printer Instructions

After the settings are adjusted, the next step is to generate the instructions that the printer will understand. This process involves converting the sliced model into a format that the printer can interpret, such as G-code. The time it takes to generate these instructions depends on the complexity of the model and the processing power of the computer running the slicing software.

Print Setup and Calibration

Ensuring the printer is properly set up and calibrated plays a crucial role in achieving accurate and high-quality 3D prints. This section will cover printer calibration and the time it takes to set up the printer for a specific print job.

Printer Assembly and Leveling

Before starting a print job, it is essential to assemble the printer correctly and ensure that the build plate is level. This process involves following the manufacturer’s instructions and making adjustments to the printer’s components. The time required for printer assembly and leveling can vary depending on the specific printer model and the user’s familiarity with the process.

Bed Adhesion Preparation

Proper bed adhesion is crucial to prevent the printed object from detaching from the build plate during the printing process. This step involves preparing the print surface by applying adhesives such as glue stick, hairspray, or specialized 3D printing adhesives. The time required for bed adhesion preparation depends on the chosen method and the size of the print bed.

Calibration and Fine-Tuning

Calibrating the printer’s settings, such as the extrusion multiplier, flow rate, and temperature, is necessary to achieve accurate and high-quality prints. Fine-tuning these settings may involve trial and error to find the optimal values for a specific print job. The time required for calibration and fine-tuning depends on the complexity of the model, the chosen material, and the desired level of detail.

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Size and Complexity of the Object

The size and complexity of the object being printed significantly impact the printing time. This section will explore how different factors, such as layer height, infill density, and intricate designs, can affect the duration of the printing process.

Layer Height

The layer height refers to the thickness of each layer that the printer deposits. A smaller layer height produces finer details but increases the printing time, as more layers are required to build the object. On the other hand, a larger layer height reduces the printing time but may result in a less detailed final product. The choice of layer height depends on the desired level of detail and the time available for printing.

Infill Density

Infill density determines the amount of material inside the printed object. Higher infill densities provide greater strength but also increase the printing time. Conversely, lower infill densities reduce the printing time but result in a less solid object. The choice of infill density depends on the intended use of the printed object and the desired balance between strength and print time.

Intricate Designs and Overhangs

Objects with intricate designs, overhangs, or complex geometries often require support structures to ensure successful printing. The inclusion of support structures adds time to the printing process, as these structures need to be printed and later removed or dissolved. Additionally, objects with complex designs may require more time due to the increased number of layers and the need for precise printing movements.

Print Speed and Quality Settings

Print speed and quality settings are essential factors to consider when determining the duration of a 3D print. This section will discuss how adjusting these settings can impact both the printing time and the final quality of the printed object.

Print Speed

The print speed refers to how fast the printer moves during the printing process. Higher print speeds reduce the overall printing time but may sacrifice print quality. Slower print speeds allow for greater detail and accuracy but extend the printing duration. Finding the right balance between speed and quality depends on the specific print job and the desired outcome.

Layer Cooling and Retraction

Layer cooling and retraction settings are crucial for minimizing print defects, such as stringing, warping, and oozing. These settings control the cooling time between layers and the retraction of the filament to prevent unwanted material from being deposited. Adjusting these settings can impact both the printing time and the quality of the final print.

Resolution and Detail Settings

The resolution and detail settings determine the level of precision and accuracy in the printed object. Higher resolutions and finer details require more time to print, as the printer needs to deposit smaller layers and make more precise movements. Lower resolutions and coarser details reduce the printing time but may result in a less refined final product. The choice of resolution and detail settings depends on the desired outcome and the time available for printing.

Material Selection

The type of material used for 3D printing can have a substantial impact on the printing time. This section will explore how different materials, such as PLA, ABS, or nylon, require varying print settings and influence the overall duration of the print job.

Melting Point and Printing Temperature

Each material used for 3D printing has a specific melting point and recommended printing temperature. Higher melting points and printing temperatures require more time to heat the material to the desired consistency, resulting in longer print times. Conversely, materials with lower melting points and printing temperatures require less time to reach the optimal printing conditions, reducing the overall printing duration.

Material Properties and Print Settings

Different materials have varying physical properties, such as flexibility, strength, and adhesion. These properties influence the optimal print settings and the printing time. For example, flexible materials may require slower print speeds to prevent deformation, while stronger materials may require higher temperatures and longer cooling times. Understanding the properties of the chosen material and adjusting the print settings accordingly can help optimize the printing time.

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Filament Diameter and Extrusion Rate

The filament diameter and extrusion rate affect the amount of material being deposited during the printing process. Thicker filaments and higher extrusion rates result in faster printing, while thinner filaments and lower extrusion rates slow down the printing process. Matching the filament diameter and extrusion rate to the desired print speed and quality can help optimize the overall printing time.

Printer Technology

There are various 3D printing technologies available, each with its own advantages and disadvantages. This section will examine how different printer technologies, such as FDM, SLA, or SLS, affect the printing time and the overall quality of the printed object.

Fused Deposition Modeling (FDM)

FDM is one of the most common 3D printing technologies. It involves melting a thermoplastic filament and depositing it layer by layer to create the object. FDM printers are known for their relatively fast print speeds, especially when using larger layer heights. However, the printing time can increase significantly when printing with smaller layer heights or intricate designs that require more precise movements.

Stereolithography (SLA)

SLA printers use a liquid resin that is cured layer by layer using a UV light source. SLA technology allows for high levels of detail and accuracy in the printed object. However, the printing time can be longer compared to FDM printers, as each layer needs to be cured individually. Additionally, the post-processing time for cleaning and curing the printed object should be taken into account when considering the overall printing duration.

Selective Laser Sintering (SLS)

SLS printers utilize a laser to selectively fuse powdered material, such as nylon or polyamide, layer by layer. SLS technology offers excellent strength and durability in printed objects. However, the printing time can be longer due to the scanning process required by the laser. Additionally, post-processing steps, such as removing excess powder or applying heat treatment, may add to the overall printing duration.

Support Structures and Rafts

Support structures and rafts are often necessary for printing objects with overhangs or complex geometries. This section will discuss how the inclusion of support structures can impact the printing time and the effort required for post-processing.

Support Generation

When printing objects with overhangs or bridges, support structures are generated to provide temporary scaffolding for these unsupported areas. The time required to generate support structures depends on the complexity of the design and the chosen software. Some slicing software offers automatic support generation, while others require manual placement of supports. The more supports needed, the longer the printing time.

Support Removal

After the printing process is complete, the support structures need to be removed. This process can be time-consuming, especially for complex designs with intricate support structures. Support removal techniques include manual cutting, dissolving supports in a solvent, or using support removal tools. The effort and time required for support removal depend on the design complexity, the chosen material, and the support adhesion to the printed object.

Post-Processing and Finishing

After the printing process is complete, post-processing and finishing may be required to achieve the desired look and functionality. This section will explore the time involved in removing support structures, sanding, painting, or applying other finishing touches to the printed object.

Support Removal and Cleanup

After removing the support structures, post-processing often involves cleaning up the printed object. This can include removing any remaining support marks, smoothing rough surfaces, or sanding down imperfections. The time required for support removal and cleanup depends on the complexity of the object and the desired level of finishing.

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Sanding and Smoothing

To achieve a smooth and polished finish, sanding and smoothing techniques can be employed. This process involves using various grits of sandpaper or sanding tools to gradually refine the surface of the printed object. The time required for sanding and smoothing depends on the desired level of smoothness and the intricacy of the object’s design.

Painting and Coating

Adding color or protective coating to the printed object can enhance its appearance and durability. This step involves applying paint, varnish, or other coatings to achieve the desired aesthetic or functional properties. The time required for painting and coating depends on the complexity of the design, the number of layers required, and the drying time of the chosen materials.

Print Queue and Printer Availability

In scenarios where multiple print jobs are queued or when sharing a printer in a communal setting, printer availability becomes a significant factor. This section will discuss how the queue and printer availability can affect the waiting time for a 3D print to start.

Print Job Prioritization

In a shared printer environment or when multiple print jobs are queued, print job prioritization becomes essential. Depending on the printer management system, print jobs can be prioritized based on factors such as print time, urgency, or user preferences. The time it takes for a print job to start can vary depending on its position in the queue and the priority assigned to it.

Printer Availability and Maintenance

In communal or shared printer settings, printer availability can be affected by factors such as scheduled maintenance, repairs, or other users’ print jobs. The time it takes for a 3D print to start may be influenced by the printer’s availability and any maintenance activities required. It is essential to consider these factors when planning and managing print jobs.

Optimizing Print Time

This section will provide practical tips and strategies to help you optimize the printing time, such as using larger layer heights for faster prints, reducing infill density, or utilizing multiple printers simultaneously.

Choosing Appropriate Layer Height

By selecting a larger layer height, the printing time can be reduced. However, this may result in a loss of detail and surface quality. It is essential to strike a balance between print speed and desired output quality when choosing the appropriate layer height for a specific print job.

Adjusting Infill Density

Reducing the infill density can significantly impact the printing time without compromising the overall strength of the printed object. By lowering the infill density, less material is deposited, resulting in faster prints. However, it is crucial to consider the intended application and required structural integrity when adjusting the infill density.

Utilizing Multiple Printers

If available, utilizing multiple printers simultaneously can greatly reduce the overall printing time. By dividing the print job among multiple printers, each printer can work on a portion of the object, effectively increasing productivity. This approach is especially useful for larger projects or when time is of the essence.

Optimizing Print Settings

Fine-tuning print settings, such as print speed, temperature, and cooling, can help optimize the printing time. Experimenting with different settings and finding the right balance between speed and quality can lead to significant time savings without compromising the final product’s integrity.


In conclusion, the time it takes to 3D print can vary depending on several factors. From prepping the print job to selecting the right materials and printer technology, each step influences the overall duration. By understanding these factors and implementing optimization techniques, you can effectively manage your expectations and maximize the efficiency of your 3D printing projects. Remember to consider the size and complexity of the object, adjust print speed and quality settings accordingly, choose suitable materials, and explore different printer technologies to find the best balance between time and quality. With careful planning and experimentation, you can achieve impressive 3D prints and meet your project deadlines efficiently.

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