AnyCubic Kobra Plus 3D Printer Review

Technical sheet

Build volume: 300x300x350mm
Memory: SD card
Nozzle size: 0.4mm
Layer height: 0.05-0.30mm
Bed: Carborundum glass
Software: CURA
Materials: PLA, PETG, ASA, ABS, Flex

Introduction

AnyCubic is well known for its solid, well-priced machines, with the Kobra series the company’s latest release. As with previous AnyCubic 3D printers, the build and design are solid, and the approach is simple, solid, reliable, and usable.

There aren’t great upgrade options or the ability to swap and change parts; although the nozzle can be replaced, it is a simple and high quality 3D printer.

AnyCubic Kobra Plus

(Image credit: AnyCubic)

The range is inexpensive and follows the same design aesthetic throughout, with only marginal changes depending on size. Ease of use is the running theme here, with the solid build and easy-to-navigate LCD touchscreen making the AnyCubic Kobra ideal for beginners and intermediate users.

The Kobra Plus has one of the largest print platforms of any fused filament printer of this size that we have reviewed. The Kobra Plus has a lot going for it, following AnyCubic’s previous successful FFF 3D printers, and the fact that it’s a bit more expensive than many of its full-scale rivals also means it has a lot going for it. to prove its worth.

Design

The AnyCubic Kobra Plus is the largest 3D printer in the Kobra line. It has a huge 400x400x450mm build platform that allows you to produce much larger models than most other 3D printers at this price point like the Mingda Magician Plus 320x320x400mm.

The use of plastic in the construction of 3D printers and here AnyCubic has played it safe with mass-produced injection molded parts mixed with a metal frame that provides a solid printing base.

When the printer arrives, it’s relatively quick to set up; however, the size and weight make it a little fiddly, especially when bolting into the vertical frame. An extra pair of hands may be required for some builders.

Once the main upright is installed, the jumper wires can be plugged in and the machine powered up. As with most machines, there’s a quick calibration process and a few test prints show any adjustments needed to fine-tune initial prints. We found that there was a need to fine-tune the Z axis, and probably due to the ambient heat in the workshop at the moment, the shrink and heat settings of the PLA material were also adjusted.

As for the design, the filament spool is mounted on the side of the machine, which means the machine takes up quite a bit of countertop space and there is no option for mount the spool on top – unless you’re printing a custom one. assembly that you design yourself.

AnyCubic Kobra Plus

(Image credit: AnyCubic)

The power outlet and switch are neatly stored to the side behind the filament spool holder, which helps keep things clean.

One issue with the design was the amount of space the printer took up. It is large in height, width and depth. The spool of filament extends the width, then the depth is increased by a stepper motor that protrudes at the back and the belt tensioner that protrudes at the front and another at the side.

AnyCubic Kobra Plus

(Image credit: AnyCubic)

Once enough space was found for the printer, the initial setup was complete and a few test prints were run through the system, and early signs were encouraging.

Features

The Kobra Plus is large physically as a machine and in rig size with a build area of ​​300 x 300 x 350mm. The physical size of the machine is 605 x 560 x 546 mm which also makes it one of the largest machines of its type, weighing 11 kg which is about average.

AnyCubic has also incorporated advanced features that until recently would not have been on a printer at this price point. These include a twin-screw motor that ensures precise Z-axis movement, AnyCubic LeviQ, an intelligent auto-leveling system, and filament run-out detection that pauses the print if the filament runs out or runs out. breakage during the printing process.

Along with its advanced features, the Kobra Plus offers a nozzle size of 0.4mm, and this nozzle is replaceable. It can reach a temperature of 260°C, which means wide compatibility with most common filaments. Made from ultra-strong textured Carborundum glass, the print platform offers plenty of space and decent grip and can be heated to 90ºC

AnyCubic Kobra Plus

(Image credit: AnyCubic)

Print speeds are impressive at 18cm/s with a print accuracy of ±0.1mm and layer thickness choices between 50 and 300μm – but it’s not too noisy for that. We measured the printer at ≤60dB, so while you can hear it, you can also get on with other tasks without it being too distracting.

Performance

AnyCubic supplied the new printer with its own 1.75mm PLA filament, which we used with filaments from PRUSA and ColorFabb. The quality of the AnyCubic filament was easily comparable and allowed the Kobra Plus to produce very fine prints.

As already mentioned, setting up the Kobra Plus was simple, if a bit tedious, due to its bulk and weight. Once done, the 3D printer quickly calibrated with only a slight Z-axis height adjustment needed before test prints could be properly run in the machine.

The Owl model that comes pre-installed on the MicroSD card prints flawlessly with the precision and finish you would expect from a sample model.

AnyCubic Kobra Plus

(Image credit: AnyCubic)

When we started printing my own 3D models, we had to create the Kobra Plus profile in Cura. Cura is software that essentially slices a 3D model into a series of coordinates and layers that can then be understood by the 3D printer. Since the profile was pre-installed at the time of the review, the initial setup took a little longer than expected, but was by no means difficult – there are plenty of online instructions to guide you through it of the process.

Once these Cura tweaks were done, there wasn’t much more to do with the machine; insert the MicroSD card in the front, select the model using the touch screen interface and click print – everything is very simple.

AnyCubic Kobra Plus

(Image credit: AnyCubic)

In typical AnyCubic style, the touchscreen interface is functional rather than beautifully designed, but there’s nothing wrong with this feature.

By checking the printer with a series of tests, the printer started to come into its own. Ease of use is really at the heart of this printer. Want to print big? This is not a problem; the Kobra Plus is relatively fast, quiet and extremely reliable.

When printing at this scale, having a printer with a filament run out sensor is essential. Here, the AnyCubic end-of-run sensor does a great job, stopping when the filament runs out and letting you install another spool before continuing printing.

AnyCubic Kobra Plus

(Image credit: AnyCubic)

Performance-wise, there’s not much to complain about.

Dimensional accuracy – score of 4

Target 25 = X: error 24.61 mm / 0.39 mm | Y: 24.88mm / 0.12mm error

Target 20 = X: 19.70 mm / 0.30 mm error | Y: 19.97mm / 0.03mm error

Target 15 = X: 14.74mm / 0.26mm error | Y: 14.96mm / 0.04mm error

Target 10 = X: 19.89mm / 0.11mm error | Y: 10.00mm / 0mm error

Target 5 = X: 4.93mm / 0.07mm error | Y: 5.09mm / 0.09mm error

Mean error X = 0.23

Mean error Y = 0.07

X&Y error mean = 0.15

Fine flow control – rating of 2.5

Fine negative features – score of 4

Cantilevered – score of 5

Bridge – score of 5

XY Resonance – rating of 2.5

Z axis alignment – rating of 2.5

Adding the totals gives a final score of 25.5 out of 30.

Verdict

The AnyCubic Kobra Plus is a great 3D printer with the company giving you the ability to print big on a low cost machine.

The size is the first thing that strikes you about the machine – not only the huge build volume, but also the overall physical size and weight. Although compared to other machines with this print area size, the Kobra Plus is actually quite light.

What stands out about the Kobra Plus is that all the features are so integrated into the design and function of the machine that you forget they’re there. For example, automatic bed leveling works once an initial Z-axis adjustment is made. Then there’s the filament detection and touchscreen that combine to make your 3D printing job easier.

AnyCubic Kobra Plus

(Image credit: AnyCubic)

A few areas, however, started to bother me during the review; the glass print bed can be a nightmare when extracting prints. Most were removed without issue, but a few, including the Owl sample, didn’t budge even after being left for a few hours to cool down properly. These days, a flexi-metal bed is definitely a requirement.

A metal bed and the UI design could all be a little more polished, but you have to remember that this 3D printer is not that expensive and you get what you pay for.

The AnyCubic Kobra Plus is a 3D printer that impresses with its size, print quality and reliability.