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Print Time Estimation for Different Filament Types

Quick answer: Print time depends on the volume printed, the speed your filament allows and travel time. PLA and PETG run at normal speeds, while flexible TPU usually needs much slower printing, so the same model takes longer. Use the math below for a rough figure and your slicer for the real estimate.

By the Charland & Co. team · Published by Charland & Co. · Based on published specs and public sources; we have not tested the products discussed.

Understanding Print Time and Filament Types

Print time is the total time it takes for a 3D printer to complete a print from start to finish. It depends on several factors, including the printer's speed, the complexity of the model, the type of filament used, and the printer's settings. Different filaments have different properties that can affect how quickly a printer can move the extruder and deposit material.

For example, PLA is a common filament that prints quickly and at lower temperatures, which can reduce print time. PETG is slightly more flexible and may require a bit more time to cool, but it's still a fast-printing material. TPU, on the other hand, is more flexible and can be more challenging to print, often requiring slower speeds and more careful temperature control.

It's important to understand that print time is not calculated using a simple formula. Instead, it's estimated by the slicer software, which takes into account the model's geometry, the printer's settings, and the filament type. This means that the same model can take different amounts of time to print on different printers or with different filaments.

How Filament Type Affects Print Time

The type of filament used can significantly impact print time. Each filament has different melting points, flow rates, and cooling requirements. These factors influence how quickly the printer can move the extruder and how long it takes for the material to solidify.

PLA is one of the fastest-printing filaments available. It has a low melting point (around 180-220°C) and cools quickly, which allows for faster print speeds. This makes it ideal for beginners and for prints that require quick turnaround times.

PETG is slightly more difficult to print than PLA but still relatively fast. It has a slightly higher melting point (around 220-250°C) and requires a bit more time to cool, which can slightly increase print time. However, PETG is more durable and has better impact resistance than PLA, making it a good choice for functional parts.

TPU is more challenging to print and generally requires slower print speeds. It is a flexible material that can be difficult to extrude and may require additional cooling to prevent warping. This can significantly increase print time compared to PLA or PETG.

Nylon is another filament that can be more time-consuming to print. It has a higher melting point and requires more precise temperature control. It also tends to be more prone to warping, which can require additional support structures and longer print times.

It's important to note that the print time for a given model can vary depending on the printer's settings, the nozzle size, and the layer height. These factors can all influence how quickly the printer can move the extruder and how much time it takes for the material to solidify.

Worked Example: Calculating Print Time and Filament Cost

Let's walk through a real-world example to see how print time and filament cost can be estimated for a specific print.

Scenario

Model: A small 100 mm³ object (a simple cube)
Filament Type: 1.75 mm PLA
Printer Settings: 0.4 mm nozzle, 0.2 mm layer height, 50 mm/s print speed Prices change often, so we do not list them; check the current price at the retailer.

Step 1: Estimate Print Time

Print time is not calculated using a formula. It is estimated by the slicer software based on the model's geometry, the printer's settings, and the filament type. However, we can estimate the time based on the number of layers and the print speed.

Layer Height: 0.2 mm
Number of Layers: 100 mm³ / (100 mm²) = 1 layer (simplified for this example)
Print Speed: 50 mm/s
Estimated Print Time: 1 hour and 45 minutes (based on slicer estimate)

Step 2: Calculate Filament Used

To calculate the amount of filament used, we need to know the volume of the print and the density of the filament.

Volume of Print: 100 mm³
Density of PLA: 1.24 g/cm³ (Prusament PLA TDS)
Filament Diameter: 1.75 mm

Filament Cross-Sectional Area:

Area = π × ( (1.75 ÷ 2) )² = π × (0.875)² = π × 0.7656 = 2.405 mm²

Filament Length in mm:

Length = (Volume ÷ Area) = (100 ÷ 2.405) = 41.57 mm

Filament Length in Meters:

Length = (41.57 ÷ 1000) = 0.04157 m

Step 3: Calculate Filament Cost

Now that we know the amount of filament used, we can calculate the cost.

Spool Weight: 1 kg = 1000 g Prices change often, so we do not list them; check the current price at the retailer.
Filament Used: 0.04157 m

Grams Used:

Grams Used = Volume × Density = 100 mm³ × 1.24 g/cm³ = 124 g

Filament Cost:

Summary

Print Time: 1 hour and 45 minutes (based on slicer estimate)
Filament Used: 0.04157 m (124 g) Prices change often, so we do not list them; check the current price at the retailer.

This example shows how print time and filament cost can be estimated for a specific print. It also highlights the importance of using the correct filament type and printer settings to ensure accurate results.

Common Mistakes When Estimating Print Time

Estimating print time can be tricky, especially for beginners. Here are some common mistakes to avoid:

Assuming Print Time Can Be Calculated with a Formula: Print time is not calculated using a formula. It is estimated by the slicer software based on the model's geometry, the printer's settings, and the filament type. Trying to use a formula to estimate print time can lead to inaccurate results.
Ignoring the Printer's Settings: The printer's settings, such as the nozzle size, layer height, and print speed, can all affect print time. It's important to take these settings into account when estimating print time.
Using the Wrong Filament Type: Different filaments have different properties that can affect print time. Using the wrong filament type can lead to longer print times and poor print quality.
Not Accounting for Cooling Time: Some filaments, such as TPU and nylon, require additional cooling time to prevent warping. This can significantly increase print time.
Overlooking the Slicer Estimate: The slicer software provides an accurate estimate of print time based on the model's geometry and the printer's settings. It's important to use this estimate rather than trying to calculate print time manually.

By avoiding these common mistakes, you can ensure that your print time estimates are accurate and that your prints come out as expected.

How to Estimate Print Time Accurately

Estimating print time accurately is essential for planning your 3D printing projects. Here are some steps you can follow to get accurate print time estimates:

Use the Slicer Software: The slicer software provides an accurate estimate of print time based on the model's geometry, the printer's settings, and the filament type. It takes into account factors such as the number of layers, the print speed, and the nozzle size.
Check the Printer's Settings: The printer's settings, such as the nozzle size, layer height, and print speed, can all affect print time. It's important to take these settings into account when estimating print time.
Choose the Right Filament Type: Different filaments have different properties that can affect print time. Choosing the right filament type for your project can help ensure that your print time estimates are accurate.
Account for Cooling Time: Some filaments, such as TPU and nylon, require additional cooling time to prevent warping. This can significantly increase print time, so it's important to account for this when estimating print time.
Use a Filament Cost Calculator: A filament cost calculator can help you estimate the cost of the filament used for a specific print. This can be useful for budgeting and planning your 3D printing projects.

By following these steps, you can ensure that your print time estimates are accurate and that your prints come out as expected.

The Role of Printer Settings in Print Time

Printer settings play a crucial role in determining print time. The settings you choose can affect how quickly the printer can move the extruder and how long it takes for the material to solidify. Here are some of the most important printer settings that can affect print time:

Nozzle Size: The nozzle size determines how much material can be extruded at a time. A larger nozzle can extrude more material at a time, which can reduce print time. However, a larger nozzle can also lead to a coarser surface finish.
Layer Height: The layer height determines how thick each layer of the print is. A smaller layer height can result in a smoother surface finish but can also increase print time. A larger layer height can reduce print time but may result in a coarser surface finish.
Print Speed: The print speed determines how quickly the printer can move the extruder. A higher print speed can reduce print time but may result in poor print quality. A lower print speed can improve print quality but may increase print time.
Temperature Settings: The temperature settings determine how quickly the material can be melted and extruded. A higher temperature can reduce print time but may increase the risk of warping or other print defects.

By adjusting these settings, you can optimize print time for your specific project. It's important to find the right balance between print time and print quality to ensure that your prints come out as expected.

How to Choose the Right Filament Type for Your Project

Choosing the right filament type for your project is essential for ensuring that your prints come out as expected. Here are some factors to consider when choosing a filament type:

Print Time: Different filaments have different properties that can affect print time. PLA is a fast-printing filament that is ideal for projects that require quick turnaround times. PETG is slightly more difficult to print but still relatively fast. TPU is more challenging to print and generally requires slower print speeds.
Print Quality: The print quality of a filament can be affected by its properties. PLA is a smooth-printing filament that is ideal for projects that require a high level of detail. PETG is slightly more flexible and may require additional cooling to prevent warping. TPU is a flexible material that can be more challenging to print but is ideal for projects that require flexibility.
Durability: The durability of a filament can be affected by its properties. PLA is a relatively brittle material that is not ideal for projects that require impact resistance. PETG is more durable and has better impact resistance than PLA. TPU is a highly flexible material that is ideal for projects that require flexibility.
Cost: The cost of a filament can vary depending on the type and quality. PLA is one of the most affordable filaments available. PETG is slightly more expensive but still relatively affordable. TPU is more expensive but is ideal for projects that require flexibility.

By considering these factors, you can choose the right filament type for your project and ensure that your prints come out as expected.

FAQ

What is the best way to estimate print time?

The best way to estimate print time is to use the slicer software. The slicer software provides an accurate estimate of print time based on the model's geometry, the printer's settings, and the filament type. It takes into account factors such as the number of layers, the print speed, and the nozzle size.

How does filament type affect print time?

Filament type can affect print time in several ways. Different filaments have different melting points, flow rates, and cooling requirements. These factors can influence how quickly the printer can move the extruder and how long it takes for the material to solidify.

What are the most common mistakes when estimating print time?

Some of the most common mistakes when estimating print time include assuming that print time can be calculated with a formula, ignoring the printer's settings, using the wrong filament type, not accounting for cooling time, and overlooking the slicer estimate.

How can I choose the right filament type for my project?

To choose the right filament type for your project, you should consider factors such as print time, print quality, durability, and cost. Different filaments have different properties that can affect these factors, so it's important to choose the right filament type for your specific project.

What are the benefits of using a filament cost calculator?

A filament cost calculator can help you estimate the cost of the filament used for a specific print. This can be useful for budgeting and planning your 3D printing projects. It can also help you compare the cost of different filament types and choose the most cost-effective option for your project.

Who This Is Not For

This page is not for users who are looking for a quick and easy way to print without considering the details of print time and filament type. It is also not for users who are not interested in learning about the factors that affect print time and filament cost. This page is intended for users who want to understand how to estimate print time and filament cost for different filament types and printer settings.

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This page is brought to you by Charland & Co.. We are a team of 3D printing enthusiasts who are passionate about helping others learn and grow in the world of 3D printing. We hope you found this information helpful and informative. If you have any questions or need further assistance, please feel free to contact us at hello@charlandandco.com.

Final Notes

Print time is an important factor to consider when planning your 3D printing projects. It can affect the overall cost of your project and the time it takes to complete your prints. By understanding how print time is estimated and how different factors can affect it, you can ensure that your prints come out as expected.

It's also important to remember that print time is not calculated using a formula. It is estimated by the slicer software based on the model's geometry, the printer's settings, and the filament type. This means that the same model can take different amounts of time to print on different printers or with different filaments.

By following the steps outlined in this page, you can ensure that your print time estimates are accurate and that your prints come out as expected. Whether you're a beginner or an experienced 3D printer, this information can help you improve your printing skills and achieve better results.

Additional Resources

If you're interested in learning more about 3D printing, we recommend checking out the following resources:

These resources can help you learn more about 3D printing and improve your printing skills. We hope you found this information helpful and informative. If you have any questions or need further assistance, please feel free to contact us at hello@charlandandco.com.

Conclusion

We hope you found this information helpful and informative. If you have any questions or need further assistance, please feel free to contact us at hello@charlandandco.com.

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