AnyCubic Kobra 2: sub $300 fast printing 3D printer, auto z-offset, nozzle cleaning, 30 mins benchy

AnyCubic Kobra 2:
$249 with coupon code 20SUMMER
https://shrsl.com/42lof
Prusa Slicer profiles for AnyCubic Kobra 2 & Gcodes:

Kobra 2 Prusa Slicer Profiles:
For stock firmware:
https://drive.google.com/file/d/1xRKTQGgymFw3FAtVjINtNMWzweHxCR1M/view

For firmware v3.0.6:
https://drive.google.com/file/d/1ZNOGmGPSo8SZ9BioIqVIY0JSXSWmNQUE/view

All Gcode files I printed in this video:
https://auroratechchannel.com/download/EP120-gcodes.zip
00:00 Intro
02:51 Setup
08:08 Compare with 0.28 layer height(30m) and 0.2 layer(40m) height 3D Benchy
09:02 Retraction test: honeycomb drawer tower that requires an excessive amounto f retraction
10:56 Slow VS Fast print quality compare: 3h Jeep @250mm/s VS 9h Jeep @50mm/s
13:06 More test prints with PLA, ABS, TPU, and Nylon
16:14 Pros and Cons
Welcome back to Aurora Tech Channel. Today, I am going to test out the AnyCubic Kobra 2, which is a fast printing machine that claims to be able to print at 250mm/s, and it runs Marlin firmware instead of Klipper. Generally, we’d expect a fast-printing printer to run Klipper because when using input shaper.

Besides input shaper, if a 3D printer needs to print quickly, the kinematics, motion system, extruder, hotend, and cooling all play important roles. So, let’s take a look at what this AnyCubic Kobra 2 comes with. For the kinematics, it’s a bed slinger with a strong Y stepper motor, which is a Nema 17 48mm motor. While a normal bed slinger would probably use a Nema 17 34mm motor, this 48mm motor should be able to provide more torque and power to move the bed faster. For the motion system, it uses steel wheels on the X and Y axis, similar to those on the xTool laser engravers. So, when moving at higher speed, it won’t wear out like regular rubber or POM wheels. For the Z-axis, it just uses regular rubber wheels. The extruder is a 4 to 1 gear ratio direct drive. The heat sink is similar to the one used on the BambuLab, with a volcano-style heater block. For the cooling system, it uses a 5020 blower. When I visited the cooling fan manufacturer's website, the data sheet shows that the airflow of this 5020 blower is 6.1 CFM, which is almost double the 3.23 CFM of a 5015 blower.

Moving on to the other features: it has a dual Z-axis, but it doesn't use dual motors and instead uses a timing belt and bearings to synchronize both lead screws. It has a silicon block at the rear of the print bed, which is used to wipe the nozzle, and there’s a sensor next to it, similar to those tool height sensors on an auto tool changer CNC machine, which set the Z-offset automatically. There are no manual leveling knobs under the bed, so it relies solely on the inductive auto bed leveling.

It also comes with some features you would expect from a typical mid-range 3D printer, like a 4.3” color touchscreen, a 32-bit board, silent stepper drivers, a textured PEI spring steel sheet, belt tensioners on both the X and Y-axis, a filament sensor, clean cable management using a single ribbon cable, and a slightly more powerful 400W PSU.

The price of this printer is around $280, so for this price, the hardware looks really good. I would like to thank AnyCubic for sending me this machine to review. And with that, let’s get started.
Affiliate links:

AnyCubic Kobra 2:
$249 with coupon code 20SUMMER
https://shrsl.com/42lof
Eryone filament (PLA, PETG, ABS, ASA, TPU as low as $13 per roll, min 10 rolls):
https://auroratechchannel.com/links/eryone

$16.99 VOXELPLA Pro:
https://bit.ly/3UhJpYS

AMOLEN Sparkle PLA:
https://amolen.com/?ref=jrrw8k7q
10% OFF Coupon: AURORATECH

Overture Nylon filament:
https://amzn.to/3FgovSM
Prusa Slicer profiles for AnyCubic Kobra 2 & Gcodes:

Prusa Slicer Profiles for PLA/PETG/ABS/TPU/Nylon:
https://auroratechchannel.com/download/Anycobic_Kobra2_PrusaProfiles.zip

All Gcode files I printed in this video:
https://auroratechchannel.com/download/EP120-gcodes.zip
3D Models:

Trash can:
https://www.thingiverse.com/thing:4725064

Crate:
https://www.thingiverse.com/thing:4734271

Print in Place Suzuki Jimny
https://www.printables.com/model/211483

3D Benchy:
https://www.thingiverse.com/thing:763622

Видео AnyCubic Kobra 2: sub $300 fast printing 3D printer, auto z-offset, nozzle cleaning, 30 mins benchy канала Aurora Tech