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What Is Gantry Height Cura?

What Is Gantry Height Cura? | 3D Printing Spot

Updated by

William Stone


November 1, 2023

Key Takeaways

  • Gantry height affects the vertical clearance for 3D printing.
  • It determines whether the printer can clear objects while moving.
  • Adjusting gantry height may be necessary for multi-height prints.
  • Beware of not pausing prints when altering gantry height.
  • Some 3D printing software may not allow manual control of gantry height.

Gantry is an unknown word to many and can be a bit confusing, especially in 3D printing. Let's find out what gantry means.

The gantry height is the vertical space or distance between the tip of the nozzle and the plate you are printing on. This measurement is sometimes overlooked, though it is important, especially when printing multiple models during sequential printing.

Your 3D printer has many actions going on and tons of settings to play with per print. But what does the gantry height do? We've done plenty of research on 3D printing and have a technical understanding of printing processes. 3D printing has lots of technical terminologies, and we enjoy explaining them.

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Table of Contents

What is Gantry Height Cura?

Let's start by explaining a little about gantries. Unless you work within architecture or engineering (honestly, if you work with a 3D printer regularly, you might work in these fields!), you might not recognize the word because it isn't used often.

The gantry is the frame structure that holds up something else -this can include a platform used to transfer a mobile crane or the vertical towers that hold the space shuttle until it is launched. Gantries work as support structures, like the columns that support a bridge.

In the case of 3D printing, the gantry Cura height is the vertical distance between the plate you are printing on and the bottom of the nozzle as it touches the plate. The setting is used to print only one object at a time. It should not be used to print multiple objects or printing in sequence.

How Do I Use Gantry Height?

Gantry Cura height is based on the size of the print head. Along with several other x and y-axis settings, these heights determine how much your printer moves when printing a single item.

Gantry height is crucial when simultaneous printing of multiple objects without allowing the bed to cool down is desired. Having the correct height is essential for this process.

Otherwise, the printhead can collide with other printed objects on the bed and potentially wreck them right after printing – The printhead can also damage the products during its movement to the next print location or when returning to its starting position.

For instance, let's say you're in the process of 3D printing a set of small towers with varying heights. To ensure a successful print, it's essential to design these towers in a way that keeps them below the gantry height.

This prevents any possibility of the printhead accidentally colliding with the towers as it moves over them. Additionally, you should consider the sequence in which the printhead moves during printing and avoid placing a shorter tower in a location where the printhead returns to its starting position.

While this might seem complex, most 3D printing software applications include safety features that alert you if there are any issues with your design that could lead to collisions between the printhead and previously printed parts.

Can I Change the Gantry Height?

Yes, you can change the gantry height within the software with your 3D printer, like Cura. The gantry height might need to be raised to print larger objects so that the print head doesn't hit anything.

If you replace your printhead, you'll certainly have to change the default gantry height. This helps you prevent knocking over your own prints accidentally or printing the wrong heights entirely with a new printhead.

When Should I Change the Gantry Height?

Most 3D printing software is equipped to assist with this aspect, but it's important to manually adjust the gantry height when working on prints that involve multiple varying heights.

This adjustment ensures that the first printed object does not create obstacles that hinder the printhead's movement or return to its starting position.

Can I Print Taller Objects Without Changing the Gantry Height?

Yes, you can! With some planning, you can set up your prints to have the tallest model finish last. This way, your printhead will have to be a little higher when finishing and lower as it's on its “way home.”

You might also need to set this tall object as close to “the end” as possible to avoid having the printhead swing over the finished objects.

How Do I Measure Gantry Height?

If you are printing similar-sized objects, you might not have to worry about this. If you want to know your printer’s gantry height and how to measure it, start by getting a gauge that measures in millimeters or smaller – or, for that matter, the measurement your software accepts.

You can then measure vertically from the base of your build plate up to the bottom of your printhead. This will be applicable if you print multiple pieces with varying heights.

You'll know how much distance you have and be able to plan your printhead route for the purpose without crushing anything.

Pausing with Gantry Height

It's important to note that not all 3D printing software functions identically. When working with prints involving adjusted gantry heights, it's advisable to avoid pausing the print process.

Pausing can lead to complications, as the printhead might bypass the established route to return to its starting position, potentially damaging the prints in its path.

Therefore, either provide specific instructions for the printhead's return path or refrain from pausing when dealing with gantry height adjustments or multi-height prints.

Can I Print Multiple Items with Gantry Height on?

You can use it in some software, but it's not easy. Gantry height is meant to limit you to a “One at a time” print, which also includes printing a few things and then stopping. The biggest limitation is that some printers don't let you choose which order to print in.

In such cases, you may need to devise a workaround to override the software's restrictions that discourage the use of particular gantry heights during multi-printing processes.

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What Is Gantry Height Cura?


William Stone

William Stone

William has spent 20 plus years in the custom manufacturing industry as a COO, CEO and Owner of various custom product businesses. His experience has exposed him to all types of manufacturing from die cast, die struck, injection molding, CNC machining, laser etching, engraving and of course 3D printing.

Learn more about William Stone

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