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harp 120, the bridge tool

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yahbluez

@yahbluez

Bridges nothing else, less than 10 minutes, any size, printer, nozzle, filament, no stress, saves a lot time and money.

Ocena: 4,857 / 5
Polubienia: 56
Pobrania: 803
Wydruki: 5
Wyświetlenia: 4796
Oceny: 7

Aktualizacja u źródła: 5 kwi 2023

Informacje o modelu

Źródło: Printables
Kategoria: Test Models
Licencja: GNU General Public License v3.0

Szczegóły Pliki (1)Wydruki i komentarze (Wydruki: 5) (Komentarze: 9)Remiksy (0)Kolekcje (124)

TL;DR

Tool to figure out the bridge quality of printer + filament combination, between 20 and 120 mm in steps of 10 mm, needs less than 2g of filament and less than 10 minutes, save a lot of money.

Collection

tools, 3d printing

Motivation

Needed a test model to proof and check the bridging capability of a printer/filament combination while creating a model for the printables trophy and award contest #62. Liked to have a fast one without wasting of time and filament.

A tool, reduced and focused to one single task.

Let's get started

Same tool, different printers The harp 120

The long story

FDM (Fused Deposition Modeling) is a type of 3D printing technology that uses a thermoplastic filament to create an object layer by layer. One of the challenges in 3D printing with FDM is creating overhangs or bridges, which are sections of the object that hang over empty space without any support underneath.

In traditional FDM printing, supports are required under overhangs or bridges to prevent the filament from drooping or sagging during printing. However, this can be time-consuming and difficult to remove once the print is complete.

To print bridges without support, there are a few techniques that can be used. One technique is to increase the printing speed during the bridge section. This reduces the amount of time that the filament has to sag and ensures that the filament is deposited in a straight line.

Another technique is to use a cooling fan to cool the filament as it is being deposited. This helps to solidify the filament and prevent it from sagging. Additionally, reducing the printing temperature can also help to reduce sagging.

It's important to note that the capability to print bridges without support can also depend on the design of the object being printed. For example, adding support structures or modifying the design to include less overhangs can help to make the print more successful.

Overall, FDM printing technology has come a long way in recent years, and the ability to print bridges without support is just one of the many benefits of this technology.

These are the two screws we have, the speed the printhead moves while printing the bridge and the amount of cooling the fans can deliver. This depends heavily on the chosen filament and the nozzle temperature, the only way to find out is to test print. It could be useful, especially for long bridges to reduce the print temperature to the lowest value the filament needs and to ramp up the speed for the very first layer of a bridge.

Attribution

Can I sell copies of this?

Yes! Yahbluez shared this project under the GNU GPL v3.0 license. This license allows selling copies, but you must provide proper attribution and use the GPL 3.0 license, as detailed in the GPL v3.0 license itself. You have not the right to use any other licence than GNU GPL 3.0.