3D Printer Belt Tension: How to Properly Tension a 3D Printer Belt?


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3d printer belt tension is the most common problem in 3d printing. The tension of your 3d printer’s belt is crucial to ensuring a high-quality 3D print.

If you’re not sure how to tension the belts on your 3D printer properly, this article will walk you through it.

To overcome the problems of belt tension and how to prevent this on your 3D printer- Follow this Guide.

If you’re new to 3D printing or have been having problems with the results of your prints that you can’t figure out what’s causing them, you could find that adjusting the tension on your printer belt solves the problem.

Belt tension may appear to be a minor aspect of your 3D printer, but it has a substantial impact on the quality of produced items. Let’s look at how and why they should be tightened and maintained.

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How To Function 3D Printer Belt?

3D printer belt works as the print bed. The belt only moves when a layer is in printing. 3D printer belts use titled nozzles, not FDM nozzles. It is less of a Standard Cartesian frame.

Its top is tilted sideways and CoreXY gantry. One side is tilted downward. In the printer, because of the hot end being suspended by using the CoreXY frame, the belt pulls and pushes ongoing prints away from the printer nozzles.

Hot end visits a titled XY-plane while the printer belt travels in the Z and Y-axes of the printer. 3D printers are presumed to have infinite Z-axis.

How Tight Should a 3D Printer Belt be?

To be specific, the belts should be tight enough to avoid slack. But the belt shouldn’t be too tight that they start to place a lot of stress on the motor shift or printer pulleys. The belt should be loose to a point when you pluck the belt, it should move four or five times before stopping.

Another way to check is the belt should click back quickly when you pull it but not too tight that you can’t pull your finger in. On the y-axis, you can tighten or loosen the belt through screws.

If you put too much pressure on it, you can notice some separation or some peeling on the actual belt. Though the pressure can be different for different printers the mentioned process can be a starting point.

Over tightening of the belts puts stress on the gear as well as on the bolts that hold the gears together in the printer. It also puts pressure on the shaft that the stepper motor has gone into it with the operational gear on it.

Due to that, the shaft can bend. Gates power grip belt is a good choice to use for a 3D printer belt.

How To Properly Tension The 3D Printer Belt?

A loose belt on your 3D printer can lead to a few issues, the most widely recognized skipped steps, or missed layers during printing. Assuming that the belt is excessively free, it will slip, and the print quality will again be poor.

Figuring out the perfect balance where the belt is tight enough to stay in place but not so tight that it significantly worsens printing accuracy can be challenging.

When tensioning your 3D printer belt, there are a few factors to keep in mind. One of the most significant is to involve the right tensioning tool for your belt type. You’ll require a hex wrench, requiring only a couple of moments.

Start by tracking down the belt tensioning screws on your printer. They will be situated on the top or lower part of the printer and have a tiny Allen wrench head. Relax the screws until the belt is, as of now, not tight, then fix them until the belt is simply cozy. Don’t overtighten the screws, which can harm the belt or printer.

How Do I know If My 3D Printer Belt is Too Tight?

Much strain can put pointless weight on the belt and pinion wheels, prompting skipped advances or harmed parts. One sign that your 3D printer belt is too tight is poor print quality.

When the belt is excessively tight, it puts weight on the orientation and different parts, which can cause them to fail; it can’t move freely or slips. You can determine whether the belt is excessively tight, assuming the carriage on your 3D printer moves gradually or doesn’t move by any means.

Also, a tight belt can prompt little commotion and vibration. The belt will likewise be hot to the touch, assuming it is excessively tight.

Assuming that your belt is excessively tight, it can create a few issues, including poor print quality, lack of filament flow, and even harm to the printer. Watching out for your printer’s belt tension and making adjustments is necessary.

About Tighten an Ender 3 Belt

It is important to keep the belt of our 3D printer machine tight. We can look at the following common things to keep the belt of our 3D machine tight.

The belt I need to tighten has to be accessed by locating the tensioner on one end.

If the tension on the frame is loose, hold the frame with one hand and apply moderate force.

Hold the tensioner in the back position and release the frame. Then reattach the belt tensioner to the frame with the previous tool.

In this way, all the belts of the printer have to be tightened.

Belt Tension Spring3D Printer

3D printer belt tension spring consumes loose and permits you to modify tension on your rolling wave chain or belt. A built-in spring authorizes the adaption arm to apply continuous tension. 3D printer belt tension spring uses sprockets or pulleys.

Weighty belt and roller + tensioners

Keep right drive tension to make sure easy operation for highest power and an extended favor life. Planed for use on the big belt and string drives, tensioners are spring full to give sustained tension and reflex adaptation for pulsating loads. An idler shaft (sold separately) is needed.

Radical-short-profile channel-lead roller chain tensioners

These tensioners are small enough to fit in confined spaces and are only 3″ tall. Built-in springs set sustained tension on roller chain to sock up and buffer shock, bring down vibration, and better drive performance

Short–side view- channel-lead- roller chain tensioners

A minimum of 4″ in height is better for utilization on low-authorization drives. Intraoral-in springs set continuous tension on string chain to sock up and buffer shock, and down vibration, and improve drive performance.

Delta 3d Printer Belt Tension

Delta 3D printer is the printer that executes its movement differently. Most 3D printers move by following the Cartesian method. While Delta printers move the print head by arms. These three arms are connected vertically with three posts. That gives it a triangular shape.

Although the arms can move only up and down vertically, by moving this way the print head can be executed in different directions.

Like all other 3D printers Delta 3D printers also use belts to execute the functions smoothly. But sometime you may find some problems in adjusting belt tension.

Most of the users declare that the most effective method for testing the printer’s belt’s tension is to feel it. You might be wondering how this is feasible.

All you need to use your finger to check the appropriate measure of tension. If you push it down, the belt moves slightly. The belt will also vibrate to and forth rapidly. Though it is not a secure method with experience, you will be used to the technique.

You can also try to notice the sound that a perfect tensioned belt makes. As many users say that the sound should be like a profound, cello-like tune. There are also some useful mobile apps to test the tension.

Here you can see the video to enrich your knowledge,

Anycubic Vyper Belt Tension

The Anycube Vyper is assumed to be one of the best options for beginners. It’s a 3D printer with an open frame. It has a rather large printing area. It is quite faster than other printers. Users also say it is amazingly easy to maintain the machine.

There is no doubt all types of machinery need to be adjusted. The Anycubic is not different from this. The most common issue found by many people is the belt tension adjustment.

To know more about your Vyper check the video below:


We will feel ourselves succeeding if this article helps eliminate your frustration with 3d printer belt tension.

This article has elaborated that the easiest technique to verify that your 3D printer belts are correctly tensioned is to tighten them until they have no slack and are resistant to being pushed down.

It should be about the same tension as a stretched rubber band, but don’t over tighten your belts because this will cause them to wear out faster.

Moreover, this article through a detailed examination has covered the topics such as functions of 3d printer belts, how to properly tension 3d printer belts, how to know the belt is too tight, etc.

The basic idea here is that a motor rotates a belt which, in turn, rotates a pinion shaft. The pinion shaft then meshes with your spool or reel such that it can deliver the filament to the printer head when instructed to.

Shamim Ahmed
Shamim Ahmed
I’ve been an innovator in this space for years and am really excited to share my knowledge with you. I’m an entrepreneur and love helping others achieve their goals by teaching them how to build a business around the newest innovations in technology.

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