# Annex Engineering K3: specs, SimplyPrint compatibility and setup

> **Compatible** (We're sure). It's known to work with SimplyPrint, from documentation, the protocol or owners' prints.

- By Annex Engineering
- Launched January 2021
- Canonical page: https://simplyprint.io/compatibility/annex-engineering-k3

## Annex Engineering K3 at a glance

The Annex Engineering K3 is a 3D printer by Annex Engineering with a 180 x 180 x 180 mm build volume.

- Build volume: 180 x 180 x 180 mm
- Motion system: Other kinematics
- Prints well: PLA, PETG, TPU & flexibles

## Connect the Annex Engineering K3 to SimplyPrint

| Way of connecting | Status | What you need | Notes |
| :--- | :--- | :--- | :--- |
| SimplyPrint | Compatible |  | Through Klipper (Moonraker) |
| Klipper (Moonraker) | Compatible | Nothing extra: the printer runs Klipper as it ships | DIY design built around Klipper (Annex: 'Klipper Highly Recommended', configs in the repo); Moonraker as the builder installs it, like a Voron. ([Source](https://github.com/Annex-Engineering/Gasherbrum-K3)) |
| OctoPrint (Directly, over USB) | Not compatible |  | Built to run Klipper; OctoPrint only on top of it. ([Source](https://github.com/Annex-Engineering/Gasherbrum-K3)); Ships with Klipper: OctoPrint only runs on top of it, through the OctoKlipper plugin |

- [How to set up SimplyPrint on Annex Engineering K3](https://simplyprint.io/setup-guide/annex-engineering/k3.md)
- [How to set up Mainsail on Annex Engineering K3](https://docs.mainsail.xyz/setup)
- [How to set up Fluidd on Annex Engineering K3](https://docs.fluidd.xyz/installation)

### What works with SimplyPrint

Connected through Klipper (Moonraker), SimplyPrint supports most of what it offers on the Annex Engineering K3: the camera and AI failure detection, remote printing, skipping objects, temperature and movement control and AutoPrint. Not yet in SimplyPrint through Klipper (Moonraker): download the file before the print starts.

## What slicer to use for the Annex Engineering K3

None of the slicers in SimplyPrint's cloud has a ready-made profile for the Annex Engineering K3, but it takes standard G-code: start from a similar printer's profile and set the bed size, height and nozzle to match.

- [PrusaSlicer](https://simplyprint.io/features/slicer/prusaslicer): No profile for the Annex Engineering K3 · Runs in the SimplyPrint cloud
- [OrcaSlicer](https://simplyprint.io/features/slicer/orcaslicer): No profile for the Annex Engineering K3 · Runs in the SimplyPrint cloud
- [BambuStudio](https://simplyprint.io/features/slicer/bambustudio): No profile for the Annex Engineering K3 · Runs in the SimplyPrint cloud
- [ElegooSlicer](https://simplyprint.io/features/slicer/elegooslicer): No profile for the Annex Engineering K3 · Runs in the SimplyPrint cloud
- [CrealityPrint](https://simplyprint.io/features/slicer/crealityprint): No profile for the Annex Engineering K3 · Runs in the SimplyPrint cloud
- [Cura](https://simplyprint.io/features/slicer/cura): No profile for the Annex Engineering K3 · Runs in the SimplyPrint cloud
- [Kiri:Moto](https://simplyprint.io/features/slicer/kirimoto): No profile for the Annex Engineering K3 · Runs in the SimplyPrint cloud

We only list slicers you can use in the SimplyPrint cloud, so there may be others for the Annex Engineering K3.

## The app for the Annex Engineering K3

SimplyPrint works as the Annex Engineering K3's app: on your phone and in any browser, with a slicer in the cloud.

- An app for iPhone and Android, the same in any browser, and a slicer in the cloud.
- More than monitoring: a print queue, AI failure detection, AutoPrint and accounts for a team.
- Printers from many brands in one place, side by side.
- Hosted in Frankfurt, Germany, under the GDPR.

[Connect the Annex Engineering K3 to SimplyPrint, free](https://simplyprint.io/setup-guide/annex-engineering/k3) · [App Store](https://apps.apple.com/app/simplyprint-3d/id1519749400) · [Google Play](https://play.google.com/store/apps/details?id=com.simplyprint.appdev)

## Automate the Annex Engineering K3

### Ways to automate it

- [Your own ejection G-code](https://simplyprint.io/features/autoprint/custom): Write the routine that clears your plate, and AutoPrint runs it after every print.
- [A robot arm, or anything with an API](https://simplyprint.io/features/autoprint/api): Tell SimplyPrint the plate is clear through the API or a webhook, from a robot arm or your own system.
- [Clear it by hand, keep the queue](https://simplyprint.io/features/autoprint/manual-mode): AutoPrint waits for you to mark the plate clear, then starts the next job.

[How AutoPrint works](https://simplyprint.io/features/autoprint). AutoPrint comes with the Pro plan and up.

## Annex Engineering K3 specifications: bed size, print height and more

### Size

- Build volume: 180 x 180 x 180 mm
- Bed type: Square
- Bed size: 180 x 180 mm
- Max print height: 180 mm

### Printing

- Motion system: Other kinematics
- Max extruder temperature: 300 °C
- Has heated bed: Yes
- Max bed temperature: 110 °C
- Number of nozzles: 1
- Toolheads: 1
- Direct drive: Yes
- Probing tool / Auto Bed Leveling: Yes
- Filament width: 1.75 mm

### Multi-material

- Toolchanger or hotend changer: No
- IDEX (independent dual extruders): No

### Connecting

- Supports serial printing: No
- Shipped firmware: Klipper

### Files and slicing

- Supported file formats: G-code (.gcode, .gco, .g)

### The printer

- Printer manufacturer / brand: Annex Engineering
- Printer model name: K3
- Launched: January 2021

[Read more by the manufacturer](https://github.com/Annex-Engineering/Gasherbrum-K3)

## What filament can the Annex Engineering K3 print?

Filament compatibility for the Annex Engineering K3: the materials it can handle, judged from its hotend, bed, chamber and enclosure.

| Filament | Suitability | Notes |
| :--- | :--- | :--- |
| PLA | Great | The easiest filament to print. Works on almost any printer; a heated bed helps adhesion but is not required. |
| PETG | Great | Comfortably in range (PETG likes a ~230-250C hotend and a ~70-85C bed). |
| TPU & flexibles | Great | The direct-drive extruder feeds flexible filament well. Print slowly for clean results. |
| ABS & ASA | With care | The bed is hot enough, but ABS and ASA warp without an enclosure, which is strongly recommended for clean prints. |
| Nylon (PA) | With care | Possible with care - an enclosure and very dry filament are essential. |
| Polycarbonate (PC) | With care | On the edge - PC really wants an enclosed, hot chamber to avoid warping. |
| Carbon-fiber & glass-filled | With care | Possible if you fit a hardened or wear-resistant nozzle - the abrasive fibers quickly wear a stock brass nozzle. |

### Best filament for the Annex Engineering K3

Filaments the Annex Engineering K3 prints well, Annex Engineering's own first, then the best known.

- [Bambu Lab PLA Basic](https://simplyprint.io/filaments/bambu-lab/pla-basic): PLA, 190-230 °C
- [Bambu Lab PLA Matte](https://simplyprint.io/filaments/bambu-lab/pla-matte): PLA, 190-230 °C
- [SUNLU PLA](https://simplyprint.io/filaments/sunlu/pla): PLA, 200-240 °C
- [Anycubic PETG](https://simplyprint.io/filaments/anycubic/petg): PETG, 230-250 °C
- [Anycubic PLA Basic](https://simplyprint.io/filaments/anycubic/pla-basic): PLA, 190-230 °C
- [Anycubic PLA Plus](https://simplyprint.io/filaments/anycubic/pla-plus): PLA, 190-230 °C
- [Bambu Lab PETG Basic](https://simplyprint.io/filaments/bambu-lab/petg-basic): PETG, 230-260 °C
- [Bambu Lab PETG HF](https://simplyprint.io/filaments/bambu-lab/petg-hf): PETG, 230-260 °C

## Compare the Annex Engineering K3 with similar printers

- [Bambu Lab A1 Mini](https://simplyprint.io/compatibility/bambu-lab-a1-mini): Verified by SimplyPrint, 180 x 180 x 180 mm, Similar build volume
- [Kingroon KP3S](https://simplyprint.io/compatibility/kingroon-kp3s): Compatible, 180 x 180 x 180 mm, Similar build volume
- [Creality Ender-2 Pro](https://simplyprint.io/compatibility/creality-ender-2-pro): Compatible, 165 x 165 x 180 mm, Similar build volume
- [Creality CR-200B](https://simplyprint.io/compatibility/creality-cr-200b): Compatible, 200 x 200 x 200 mm, Similar build volume
- [Compare the Annex Engineering K3 with other printers](https://simplyprint.io/compatibility/compare?compare=annex-engineering-k3#choose)

Affiliate disclosure: Some links on this page are affiliate links. We may earn a commission if you make a purchase, at no extra cost to you. As an Amazon Associate, we earn from qualifying purchases.

## Frequently asked questions

### Is the Annex Engineering K3 compatible with SimplyPrint?

Yes. You can connect the Annex Engineering K3 to SimplyPrint via Klipper (Moonraker), then slice, queue, start and monitor prints from your browser or the mobile app.

### How do I connect the Annex Engineering K3 to SimplyPrint?

Follow our step-by-step setup guide for the Annex Engineering K3. It shows how to connect it via Klipper (Moonraker), what you need for each, and which to pick.

### What slicer should I use for the Annex Engineering K3?

Cura, PrusaSlicer and OrcaSlicer all work with the Annex Engineering K3, and you can run any of them in SimplyPrint's online browser slicer - no install needed, on any device.

### Can I use OrcaSlicer with the Annex Engineering K3?

Yes, but OrcaSlicer has no built-in profile for the Annex Engineering K3 that we know of: start from a similar printer's profile and set the bed size, height and nozzle to match.

### What filament can the Annex Engineering K3 print?

Based on its specs (hotend up to 300C, heated bed up to 110C), the Annex Engineering K3 handles PLA, PETG, or TPU & flexibles well. See the full filament guide above for ABS, nylon, PC and composites.

### Does the Annex Engineering K3 work with OctoPrint or Klipper?

The Annex Engineering K3 works with Klipper (Mainsail and Fluidd), and SimplyPrint connects to it through them - so you get cloud access, a queue and camera monitoring on top.

### What is the Annex Engineering K3's bed size and build volume?

The Annex Engineering K3 has a 180 x 180 mm print bed and prints up to 180 mm tall, a build volume of about 180 x 180 x 180 mm. See the full specifications table above for bed type, temperatures and more.

### When did the Annex Engineering K3 come out?

Annex Engineering launched the K3 in January 2021.

### Can the Annex Engineering K3 eject prints automatically?

There's no kit for it that we support yet, but SimplyPrint's AutoPrint can run your own ejection G-code, work with a robot arm through the API, or wait for you to clear the plate, and then start the next job from your queue.

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