OrcaSlicer for Anycubic Kobra 2 / Neo / Plus / Max: Setup and Best Settings (2026)

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TL;DR: Complete OrcaSlicer setup guide for the Anycubic Kobra 2 family. Covers profiles, the Marlin vs Klipper firmware split, best settings overrides, and calibration sequence.

I picked up a Kobra 2 Neo as a backup printer last year and assumed the OrcaSlicer setup would mirror what I’d already done for my Kobra 3. Wrong family of firmware, wrong defaults, wrong everything. The Neo runs Marlin, the Pro and Plus and Max all run KobraOS (which is Klipper-based under the hood), and they each need different OrcaSlicer treatment. Bowden versus direct drive isn’t the question either, because the entire Kobra 2 family is direct drive despite what some older guides still say.

This guide covers all five Kobra 2 variants honestly. I’ll show you which OrcaSlicer profile to pick, what the defaults actually look like, and where you’ll want to override them. I’ll also tell you the truth about Wi-Fi upload to stock KobraOS, which is currently broken (GitHub Discussion #6178 if you want to read the wreckage), and when Anycubic Slicer Next is the smarter choice instead. If you’re cross-shopping the newer generation, our OrcaSlicer Kobra 3 guide is the right next step. And if you want the full menu of printers we cover, the printer profile hub is your map.

Table of contents

Which Kobra 2 do you actually own?

This sounds like a silly question, but the Kobra 2 line has five members and they don’t all behave the same way in OrcaSlicer. I’ve watched at least three friends pick the wrong profile because they assumed “Kobra 2” was one printer with size variants. It isn’t. The firmware split alone changes how pressure advance, retraction, and even your G-code header behave.

Here’s the comparison I wish someone had handed me on day one. Numbers come from Anycubic’s own product pages and the official OrcaSlicer machine JSONs.

Spec Kobra 2 Neo Kobra 2 (base) Kobra 2 Pro Kobra 2 Plus Kobra 2 Max
Build volume (mm) 220 x 220 x 250 220 x 220 x 250 220 x 220 x 250 320 x 320 x 400 420 x 420 x 500
Max print speed 250 mm/s 250 mm/s 500 mm/s 500 mm/s 500 mm/s
Typical print speed 150 mm/s 150 mm/s 300 mm/s 300 mm/s 300 mm/s
Max acceleration 2,500 mm/s squared 2,500 mm/s squared 20,000 mm/s squared 10,000 mm/s squared 10,000 mm/s squared
Hotend max temp 260 C 260 C 260 C 260 C 260 C
Bed max temp 110 C 110 C 110 C 90 C 90 C
Extruder Direct drive (4:1) Direct drive dual-gear Direct drive double-gear Direct drive double-gear Direct drive double-gear
Leveling LeviQ 2.0 (25-point) LeviQ 2.0 (25-point) LeviQ 2.0 (25-point) LeviQ 2.0 (49-point) LeviQ 2.0 (49-point)
Stock firmware Marlin-based Marlin-based KobraOS (Klipper) KobraOS (Klipper) KobraOS (Klipper)
MSRP (USD) ~$199 ~$259 ~$309 ~$449 ~$579

In plain English: the Neo and the base Kobra 2 are budget bedslingers running Marlin. The Pro is the speed king (Klipper firmware, tiny build plate, ridiculous acceleration ceiling). The Plus and Max are the large-format Klipper machines, with the Max in particular sporting a 420 mm bed that’s hard to find anywhere else for under $600.

I’ll say this once and not bury it: if you’re shopping new in 2026, the Kobra 3 line is the better buy unless you specifically need the Max’s footprint at this price. The Kobra 2 family is previous gen, and Anycubic’s R&D attention has clearly shifted. That said, if you already own one (or you found one used), it’s still a perfectly capable printer and OrcaSlicer treats it well.

OrcaSlicer profile support for the Kobra 2 family

Good news: every Kobra 2 variant has an official profile in mainline OrcaSlicer. I checked the SoftFever GitHub repository directly under resources/profiles/Anycubic/machine/, and all ten JSONs are there:

  • Anycubic Kobra 2.json (printer-model anchor)
  • Anycubic Kobra 2 0.4 nozzle.json
  • Anycubic Kobra 2 Neo.json
  • Anycubic Kobra 2 Neo 0.4 nozzle.json
  • Anycubic Kobra 2 Pro.json
  • Anycubic Kobra 2 Pro 0.4 nozzle.json
  • Anycubic Kobra 2 Plus.json
  • Anycubic Kobra 2 Plus 0.4 nozzle.json
  • Anycubic Kobra 2 Max.json
  • Anycubic Kobra 2 Max 0.4 nozzle.json

If your OrcaSlicer install doesn’t show one of those entries, you’re on a pre-1.9 build and need to update. The Pro profile in particular landed via PR #7082 (which closed Issue #6200) after the community pushed for it for months. I dug through that thread and the takeaway is simple: contributor keybl uploaded working JSONs, the maintainers merged them, and now you don’t have to hand-craft anything. Same story for the Plus via Issue #4210.

The defaults vary in ways that genuinely matter. Here’s a condensed table of the values I pulled directly from each 0.4 nozzle.json.

Variant G-code flavor Max accel (X/Y) Retraction length Retraction speed
Kobra 2 (base) (inherited) 2,500 mm/s² 2.0 mm 80 mm/s
Kobra 2 Neo marlin2 2,000 mm/s² 2.5 mm 100 mm/s
Kobra 2 Pro klipper 20,000 mm/s² 1.5 mm 30 mm/s
Kobra 2 Plus klipper 10,000 mm/s² 1.5 mm 30 mm/s
Kobra 2 Max klipper 10,000 mm/s² 1.5 mm 30 mm/s

Notice the pattern. Marlin variants get higher retraction (2.0 to 2.5 mm) at faster speed (80 to 100 mm/s). That’s OrcaSlicer’s defensive default for Marlin machines without firmware-side pressure advance dialed in. Klipper variants get the much tighter 1.5 mm at 30 mm/s, which is the Klipper-style approach: lean on the firmware’s pressure advance to clean up retraction artifacts and keep your filament from getting chewed.

One caveat about the Pro’s 20,000 mm/s² acceleration. That number is the firmware ceiling, not a recommendation. I’ll say this again later, but please don’t try to print at 20k accel and expect quality. You’ll get ringing that looks like ocean waves on every flat surface.

OrcaSlicer Printer Selection dialog with multiple printer profiles listed
OrcaSlicer’s Printer Selection dialog. Pick your Kobra 2 variant from the Anycubic vendor list, not Bambu. (Generic OrcaSlicer UI shown, applicable to any printer including the Kobra 2.)

Setup walkthrough, from first slice to first print

Adding the printer in OrcaSlicer

I’ll walk you through this on a fresh install. If you already have OrcaSlicer set up for another machine, the steps are nearly identical, just enter through the Printer panel instead of the first-launch wizard.

  1. Open OrcaSlicer (any current 2.x build, or 1.10.x if you’re on the older stable line).
  2. On first launch you’ll see the printer wizard. If you’ve already set up another printer, click the + next to the printer dropdown in the top toolbar.
  3. Select vendor Anycubic. The list expands to show all of Anycubic’s supported machines. Scroll until you see the five Kobra 2 entries grouped together.
  4. Pick the matching variant. Critical: if you own a Pro/Plus/Max, you want the Klipper-flavored profile (the wizard handles this automatically once you click the right model name). If you own a Neo or base Kobra 2, you’ll get the Marlin-flavored profile.
  5. Nozzle selection. Only 0.4 mm comes pre-populated. If you’ve swapped to a 0.6 or 0.8 mm hardened nozzle (which is very popular for the Max), you’ll need to clone the printer profile and edit nozzle_diameter, plus drop your retraction values down. Discussion #2461 on the OrcaSlicer repo documents this exact pain in detail.
  6. Filament. Add at least one PLA, PETG, and TPU profile from OrcaSlicer’s “Generic” filament set. You can also import Anycubic’s filament JSON if you’re brand-loyal, or pull in third-party Polymaker / Sunlu / Esun profiles from the community.

That’s it for the wizard. You’ll land in OrcaSlicer’s Prepare tab with your Kobra 2 bed visible. From here you import an STL, place it, slice it, and you’re ready to send to the printer.

OrcaSlicer Prepare tab with the bed visible and Add object tooltip
OrcaSlicer’s Prepare tab is where you’ll import your STL files. The Add object button (top toolbar) handles single or multi-part imports. (Generic OrcaSlicer UI applicable to any printer including the Kobra 2.)

Network upload, USB, and SD card (the honest version)

This is where I have to be blunt with you. OrcaSlicer’s network upload to stock KobraOS is broken. I wish it weren’t, because USB sticks are a 2014 solution, but here we are.

The reality of file transfer in 2026:

  • USB stick or SD card: the universally reliable path. Slice in OrcaSlicer, save the .gcode to USB or SD, plug into the printer. Works on every Kobra 2 variant without a single complaint. Ugly, but bulletproof.
  • Wi-Fi to stock KobraOS (Pro / Plus / Max): doesn’t work from OrcaSlicer. GitHub Discussion #6178 ends with no working host type. One contributor on that thread reports only port 8888 is exposed and OrcaSlicer can’t speak to it. The recommended workaround is Anycubic Slicer Next, which has cloud upload baked in because Anycubic built it.
  • Wi-Fi on Neo and base Kobra 2: doesn’t apply, because those machines have no Wi-Fi at all. SD card is the only path.
  • Klipper-modded machines (Rinkhals firmware or native Klipper): fully off the stock-firmware reservation, but here you can use Moonraker/Mainsail and OrcaSlicer’s “Print host upload” with the host type set to OctoPrint or PrusaLink pointed at Mainsail. This works great if you’ve already done the firmware swap.

My honest recommendation: if you only care about getting prints out the door, install Anycubic Slicer Next alongside OrcaSlicer. Use Slicer Next when you want a one-click cloud upload, and use OrcaSlicer when you want the calibration suite and the cross-printer profile management. They coexist on the same machine without conflict. I’ve been running both side by side for six months.

First print and what to look for

Before you slice anything, run the printer’s stock LeviQ 2.0 auto-leveling once. The Anycubic Wiki has a detailed leveling guide for the Neo specifically that’s worth bookmarking, and the procedure is similar across the family. If your bed level is off, no amount of slicer tuning saves you.

Once that’s done, slice a 20 mm calibration cube or the included Anycubic test cube at OrcaSlicer’s default 0.2 mm layer height with 60 mm/s outer wall speed. Don’t crank speeds yet. You want a baseline.

Things to inspect on that first print:

  • First layer adhesion. The PEI textured plate should grip without you having to fight it. If your print is sliding, check Z offset (too high) or bed temperature (too low). For PLA, 60 C bed is the standard starting point. For more on getting your filament-side dialed, our OrcaSlicer filament settings guide covers the temperature and cooling logic in depth.
  • Layer consistency. Look for over-extrusion bulges on corners (sign you need pressure advance) or gaps between perimeters (sign you need flow tuning).
  • Stringing. Especially on the Pro. If you see tiny hairs between separate features, your retraction or PA needs work.

Best settings overrides per variant

OrcaSlicer’s defaults are reasonable but conservative for Marlin variants and aggressive for Klipper variants. Here’s where I’d actually run each printer once it’s broken in.

Print speed

The numbers in this section are what I’d use for everyday quality printing, not for benchmark videos. They lean toward surface quality over speed.

  • Neo: outer wall 80 to 150 mm/s, infill 200 mm/s, overhang 60 mm/s. Pushing past 200 on the Neo causes ringing because the acceleration ceiling is genuinely low.
  • Base Kobra 2: same range as Neo. The hardware is nearly identical.
  • Pro: outer wall 100 to 150, infill 250 to 300, travel 350. The 500 mm/s headline number is marketing, not quality. I’ve never seen a Pro print well at 500.
  • Plus and Max: large beds invite ringing. Outer wall 80 to 120 mm/s, infill 200 to 250 mm/s. Inner walls can run faster.

Acceleration

Acceleration is where the big difference between Marlin and Klipper variants shows up. The Pro will let you set 20,000 in OrcaSlicer’s machine ceiling, but you should never actually print at that value.

  • Neo and base: cap outer wall accel at 1,500 mm/s² in the print profile, infill at 2,500. Defaults are already conservative but can be lowered for visual surface quality.
  • Pro: outer wall 3,000 to 5,000, infill up to 10,000. Do not run at the 20,000 ceiling.
  • Plus and Max: outer wall 2,000 to 3,000, infill 5,000 to 7,000. Larger gantries ring more, especially the Max with its tall Z column.

Pressure advance, the Marlin vs Klipper split

This is the section I wish I’d had when I first set up my Neo. Pressure advance (or linear advance, depending on firmware) lives on the printer side, not in OrcaSlicer’s print profile. But the way you tune and apply it differs completely between the two firmware families.

Marlin variants (Neo, base): the relevant feature is linear advance, set with the K factor. A typical PLA starting point is 0.04 to 0.08. You set it with a G-code line like M900 K0.06. You can drop this into OrcaSlicer’s “Machine start G-code” field so it applies to every print. Stock Anycubic Marlin firmware on the Kobra 2 Neo supports M900, though Anycubic doesn’t document it officially. Community threads on the Anycubic subreddit confirm it works.

Klipper variants (Pro, Plus, Max): the feature is called pressure_advance, with a typical PLA starting point of 0.025 to 0.05 (lower than Marlin K values). You set it either in printer.cfg (if you have shell access) or live with the Klipper command SET_PRESSURE_ADVANCE ADVANCE=0.04. KobraOS exposes this through the Anycubic app on Pro/Plus/Max. If you’ve installed Rinkhals or native Klipper, you have full Mainsail access and can tune from there.

OrcaSlicer’s pressure advance calibration helper (in the Calibration menu) works on Klipper variants via custom G-code injection. On stock Marlin Neo/base, it’ll generate the test pattern but you read the value visually and apply it manually. For a complete walkthrough, our OrcaSlicer pressure advance guide covers both flavors with screenshots.

Retraction tweaks for direct drive

Every Kobra 2 is direct drive. That means retraction stays small. The OrcaSlicer defaults err on the high side for Marlin variants because they’re written defensively, but you can tune them down once PA is dialed.

  • Neo and base: the 2.0 to 2.5 mm at 80 to 100 mm/s default is honestly a touch high for direct drive. After a retraction tower test, I’d recommend dropping to 0.8 to 1.5 mm at 35 mm/s. You’ll see less filament chew on the drive gear and faster prints with no quality loss.
  • Pro, Plus, Max: the 1.5 mm at 30 mm/s default is sane and rarely needs change for PLA. PETG often wants 2.0 mm at 25 mm/s because it strings more aggressively.

Always tune pressure advance before you tune retraction. If you tune retraction first, you’re using retraction to compensate for a missing PA setting, and your final values won’t be transferable across filaments.

First layer, cooling, and Z-hop notes

  • First layer speed: 25 mm/s for all variants on stock PEI textured plate. Don’t get clever here; first layer is the foundation.
  • Z-hop: 0.2 mm spiral helps on the Neo because the bed slings and the print can shift slightly during travels. Not strictly needed on the larger bedslingers if your first layer is dialed, but it doesn’t hurt.
  • Cooling: PLA at 100 percent fan after layer 2. PETG at 30 to 50 percent. ABS off (the Kobra 2 family isn’t enclosed; ABS will crack regardless of fan setting, so I wouldn’t print ABS on these at all unless you build an enclosure).
Zoomed view of the OrcaSlicer Support settings panel
OrcaSlicer’s Support settings panel, where overhang threshold and support style live. (Generic OrcaSlicer UI applicable to any printer including the Kobra 2.)

Calibration sequence for the Kobra 2 family

Run these in order. If you skip a step, the later steps will give you wrong answers because they’re tuning around the missing variable. I learned this the hard way with my Neo, calibrating retraction before PA and then having to redo everything.

  1. Bed level and Z offset. Use the printer’s LeviQ 2.0 auto routine first, then run a first layer square test. Adjust Z offset live during the first few layers if needed. For the broader logic of why you do this in this order, our OrcaSlicer calibration guide has the overview.
  2. Temperature tower for each filament. Run between 200 to 230 C for PLA, 230 to 250 C for PETG, 210 to 230 C for TPU. Pick the temperature where bridges look cleanest and stringing is lowest. Our temperature tower guide has the OrcaSlicer Calibration menu workflow.
  3. Flow rate calibration. OrcaSlicer’s two-pass test (pass 1 to find the ballpark, pass 2 to fine-tune). For the stock Anycubic hotend on PLA, you’ll typically land at an extrusion multiplier of 0.98 to 1.00. The full procedure is in our flow rate calibration guide.
  4. Pressure advance. Different procedure for Marlin vs Klipper variants as I covered above. Don’t skip this.
  5. Retraction test. Only after PA is dialed. Standard retraction tower; for direct drive, you’re tuning in 0.2 mm increments between 0.5 and 2.5 mm.
  6. Max volumetric speed. Important for Pro / Plus / Max owners pushing 250+ mm/s. Stock Anycubic hotend tops out around 18 mm³/s on PLA. Push past that and the cold side melts back into the heatbreak, jamming.

For filament-specific starting points, our PLA settings guide and PETG settings guide have temperature, fan, and retraction recommendations that work well as a baseline before you run the Calibration menu against your specific spool.

OrcaSlicer 3D bed view with cylinders placed and Print By Object tooltip
OrcaSlicer’s 3D bed view with multiple objects placed. The Print By Object option (right-side toolbar) prints each item top-to-bottom before moving to the next. (Generic OrcaSlicer UI applicable to any printer including the Kobra 2.)

OrcaSlicer vs Anycubic Slicer Next, which one for you

Anycubic Slicer Next is an official OrcaSlicer fork from Anycubic. The Anycubic Wiki confirms it includes “Orca’s excellent cutting ability, AC series machine printing parameters, and newly added remote control capabilities.” That’s the marketing language; the practical translation is that Slicer Next is OrcaSlicer with Anycubic’s cloud features bolted on, minus the broader cross-printer profile library.

I’ve used both extensively. Here’s my honest take.

Slicer Next wins when:

  • You only own Anycubic printers.
  • You want one-click cloud upload, remote control, and webcam monitoring without setting up Moonraker.
  • You’re new to slicing and want zero-config printer profiles for the Kobra 2 family.
  • You print exclusively with Anycubic-branded filaments.

OrcaSlicer (mainline) wins when:

  • You have multiple printer brands in the same household. Slicer Next only knows Anycubic; mainline knows Bambu, Prusa, Creality, Elegoo, Anycubic, and dozens more.
  • You want the full calibration suite (temp tower, flow rate, pressure advance, max volumetric speed, retraction tower) baked into the Calibration menu.
  • You want bleeding-edge features like the latest Arachne wall generator improvements, fuzzy skin variations, and organic supports.
  • You want third-party filament profiles (Polymaker, Sunlu, Esun) from the community.
  • You want updates faster than Slicer Next’s release cadence. Anycubic ships their fork every four to eight weeks; mainline OrcaSlicer ships nightly with stable releases every couple of months.

The honest recommendation: install both. They live happily side by side. Use Slicer Next when you want fast cloud upload and you’re printing standard parts. Use OrcaSlicer when you’re calibrating, when you’ve got a multi-printer setup, or when you want a feature that hasn’t trickled down to Slicer Next yet. You’re not picking a side; you’re picking the right tool for the moment.

Common pain points and fixes

I’ve collected the most frequent Kobra 2 + OrcaSlicer issues from GitHub, the Anycubic forums, Reddit, and my own experience. Here are the ones worth flagging.

“My Kobra 2 Pro doesn’t show up in OrcaSlicer.” You’re on a pre-1.9 build. The Pro profile landed via PR #7082 in late 2024 (closing Issue #6200). Update to a current build and it’ll appear under Anycubic.

Stringing on the Pro. Recurring on Printables (mrFenyx and Friis profile pages both flag this). The fix isn’t more retraction. Drop your nozzle temp 5 to 10 C and dial in pressure_advance to 0.03 to 0.05. Cranking retraction past 2 mm on a direct drive will chew filament without solving the underlying flow problem.

Bed leveling failures on the Neo. Documented on the Anycubic subreddit and the Anycubic Wiki itself. Root causes are usually loose V-slot wheels and a Y-axis tensioner shipped too tight. Tighten the eccentric nuts with the included wrench, run the module calibration, and LeviQ accuracy comes back.

“Anycubic cloud says my OrcaSlicer G-code is corrupted.” This shows up in Discussion #2461. Sometimes the thumbnail or remaining-time fields don’t render correctly on the printer screen because OrcaSlicer’s metadata format doesn’t perfectly match what KobraOS expects. The print itself is fine; the metadata isn’t. If it bothers you, slice in Slicer Next instead, or use a USB stick.

Pressure advance test crashes Klipper printers. OrcaSlicer Issue #9750. On Klipper-flavored Kobra 2 variants (Pro, Plus, Max with Rinkhals or native Klipper), the OrcaSlicer PA test sometimes hits firmware timeouts and the printer shuts down mid-print. Workaround: run shorter test ranges (smaller PA delta per layer), or run the test directly from Mainsail using its built-in PA tuning macro instead of from OrcaSlicer.

0.6 mm and 0.8 mm nozzle profiles missing. Only 0.4 mm ships in mainline. You’ll need to clone the printer in OrcaSlicer, edit nozzle_diameter, increase your line width and layer height proportionally, and adjust max volumetric speed. Discussion #2461 has the recipe and some users have published their 0.6 mm Pro profiles on Printables.

PETG bulging on top layers. Issue #7266. A known Pro behavior with PETG. Fix is pressure advance tuning plus reducing top layer speed by 30 to 40 percent.

For more general troubleshooting that isn’t Kobra 2 specific, our OrcaSlicer troubleshooting master guide has a wider net of common issues.

When to step up to a Kobra 3 instead

If you’ve read this far and you’re not yet committed to a Kobra 2, hear me out. The Kobra 3 family has a faster CoreXY-style motion system on the higher tiers, multicolor capability via the ACE Pro module, and significantly better out-of-box quality. Anycubic’s clearly invested more R&D in the Kobra 3 line, and the OrcaSlicer profiles for it are more polished.

The main reason to still buy a Kobra 2 in 2026 is price. The Neo at $199 is hard to beat for a first printer if you’re on a strict budget. The Max at $579 gives you a 420 mm build plate that costs much more on competing platforms. Outside those two cases, I’d point you at the Kobra 3 OrcaSlicer guide and let you compare.

Wrap up

The Kobra 2 family in OrcaSlicer is well-supported once you understand the firmware split. Pick the right profile (Marlin for Neo and base, Klipper for Pro/Plus/Max), run the calibration sequence in order (level, temp, flow, PA, retraction), and accept that file transfer to stock KobraOS is a USB-stick affair until Anycubic fixes the network upload story. If you want cloud upload today, run Anycubic Slicer Next alongside OrcaSlicer and use each for what it does best.

For more printers in the OrcaSlicer ecosystem, browse the printer profile hub. If you want to deepen your slicing skills with cross-machine techniques, the calibration guide and temperature tower walkthrough are good next reads. And if you’re considering the newer generation, our Kobra 3 setup guide covers what changed and whether it’s worth the upgrade.

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