# Geeetech A20T: specs, SimplyPrint compatibility and setup

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

- By Geeetech, China
- Canonical page: https://staging.simplyprint.io/compatibility/geeetech-a20t

## Geeetech A20T at a glance

The Geeetech A20T is a 3D printer by Geeetech with a 250 x 250 x 250 mm build volume.

- Build volume: 250 x 250 x 250 mm
- Prints well: PLA, PETG

## Connect the Geeetech A20T to SimplyPrint

| Way of connecting | Status | What you need | Notes |
| :--- | :--- | :--- | :--- |
| SimplyPrint | Compatible |  | Through Klipper (Moonraker) or OctoPrint |
| Klipper (Moonraker) | Compatible | Nothing extra: the printer runs Klipper as it ships |  |
| OctoPrint (Directly, over USB) | Compatible | A Raspberry Pi running OctoPrint, plugged into the printer with a USB cable |  |

- [How to set up SimplyPrint on Geeetech A20T](https://staging.simplyprint.io/setup-guide/geeetech/a20t.md)
- [How to set up Mainsail on Geeetech A20T](https://docs.mainsail.xyz/setup)
- [How to set up Fluidd on Geeetech A20T](https://docs.fluidd.xyz/installation)
- [How to set up OctoPrint on Geeetech A20T](https://staging.simplyprint.io/compatibility/geeetech-a20t/octoprint-setup)

### What works with SimplyPrint

Connected through Klipper (Moonraker), SimplyPrint supports most of what it offers on the Geeetech A20T: 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. Not available through Klipper (Moonraker): print binary G-code (.bgcode).

## What slicer to use for the Geeetech A20T

Use PrusaSlicer, OrcaSlicer, BambuStudio, ElegooSlicer, or Cura: each has a ready-made profile for the Geeetech A20T.

- [PrusaSlicer](https://staging.simplyprint.io/features/slicer/prusaslicer): Ready-made profile for the Geeetech A20T · Runs in the SimplyPrint cloud
- [OrcaSlicer](https://staging.simplyprint.io/features/slicer/orcaslicer): Ready-made profile for the Geeetech A20T · Runs in the SimplyPrint cloud
- [BambuStudio](https://staging.simplyprint.io/features/slicer/bambustudio): Ready-made profile for the Geeetech A20T · Runs in the SimplyPrint cloud
- [ElegooSlicer](https://staging.simplyprint.io/features/slicer/elegooslicer): Ready-made profile for the Geeetech A20T · Runs in the SimplyPrint cloud
- [Cura](https://staging.simplyprint.io/features/slicer/cura): Ready-made profile for the Geeetech A20T · Runs in the SimplyPrint cloud
- [CrealityPrint](https://staging.simplyprint.io/features/slicer/crealityprint): No profile for the Geeetech A20T · Runs in the SimplyPrint cloud
- [Kiri:Moto](https://staging.simplyprint.io/features/slicer/kirimoto): No profile for the Geeetech A20T · Runs in the SimplyPrint cloud

We only list slicers you can use in the SimplyPrint cloud, so there may be others for the Geeetech A20T.

## The app for the Geeetech A20T

SimplyPrint works as the Geeetech A20T'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 Geeetech A20T to SimplyPrint, free](https://staging.simplyprint.io/setup-guide/geeetech/a20t) · [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 Geeetech A20T

### Ways to automate it

- [Your own ejection G-code](https://staging.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://staging.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://staging.simplyprint.io/features/autoprint/manual-mode): AutoPrint waits for you to mark the plate clear, then starts the next job.

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

## Geeetech A20T specifications: bed size, print height and more

### Size

- Build volume: 250 x 250 x 250 mm
- Bed type: Square
- Bed size: 250 x 250 mm
- Max print height: 250 mm

### Printing

- Max extruder temperature: 250 °C
- Has heated bed: Yes
- Max bed temperature: 100 °C
- Number of nozzles: 1
- Direct drive: No
- Probing tool / Auto Bed Leveling: No
- Filament width: 1.75 mm

### Connecting

- Supports serial printing: Yes
- Shipped firmware: Marlin

### Files and slicing

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

### The printer

- Printer manufacturer / brand: Geeetech
- Printer model name: A20T
- Made by a company from: China

## What filament can the Geeetech A20T print?

Filament compatibility for the Geeetech A20T: 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 | With care | Possible, but a Bowden extruder makes flexibles harder - print slowly and prefer firmer (higher-shore) TPU. |
| 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) | Not ideal | Not recommended - PC needs very high hotend temps and an enclosed chamber. |
| 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 Geeetech A20T

Filaments the Geeetech A20T prints well, Geeetech's own first, then the best known.

- [Geeetech Matte PLA](https://staging.simplyprint.io/filaments/geeetech/matte-pla): PLA, 190-220 °C
- [Geeetech PETG](https://staging.simplyprint.io/filaments/geeetech/petg): PETG, 220-240 °C
- [Geeetech PLA](https://staging.simplyprint.io/filaments/geeetech/pla): PLA, 185-215 °C
- [Geeetech PLA Marble](https://staging.simplyprint.io/filaments/geeetech/marble-pla): PLA, 185-215 °C
- [Bambu Lab PLA Basic](https://staging.simplyprint.io/filaments/bambu-lab/pla-basic): PLA, 190-240 °C
- [Bambu Lab PLA Matte](https://staging.simplyprint.io/filaments/bambu-lab/pla-matte): PLA, 190-230 °C
- [SUNLU PLA](https://staging.simplyprint.io/filaments/sunlu/pla): PLA, 190-230 °C
- [Anycubic PETG](https://staging.simplyprint.io/filaments/anycubic/petg): PETG, 190-270 °C

## Compare the Geeetech A20T with similar printers

- [Geeetech A10](https://staging.simplyprint.io/compatibility/geeetech-a10): Compatible, 220 x 220 x 260 mm, Also by Geeetech · Similar build volume
- [Geeetech A20M](https://staging.simplyprint.io/compatibility/geeetech-a20m): Compatible, 255 x 255 x 255 mm, Also by Geeetech · Similar build volume
- [Bambu Lab P1S](https://staging.simplyprint.io/compatibility/bambu-lab-p1s): Compatible, 256 x 256 x 256 mm, Similar build volume
- [Creality Ender-3](https://staging.simplyprint.io/compatibility/creality-ender-3): Compatible, 220 x 220 x 250 mm, Similar build volume
- [Compare the Geeetech A20T with other printers](https://staging.simplyprint.io/compatibility/compare?compare=geeetech-a20t#choose)

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## Frequently asked questions

### Is the Geeetech A20T compatible with SimplyPrint?

Yes. You can connect the Geeetech A20T to SimplyPrint via Klipper (Moonraker) or OctoPrint, then slice, queue, start and monitor prints from your browser or the mobile app.

### How do I connect the Geeetech A20T to SimplyPrint?

Follow our step-by-step setup guide for the Geeetech A20T. It shows how to connect it via Klipper (Moonraker) or OctoPrint, what you need for each, and which to pick.

### What slicer should I use for the Geeetech A20T?

We recommend PrusaSlicer for the Geeetech A20T. You can run it, and 6 other slicers, directly in SimplyPrint's online slicer - no install, on any device, with profiles for the Geeetech A20T kept up to date automatically.

### Can I use OrcaSlicer with the Geeetech A20T?

Yes. OrcaSlicer comes with a profile for the Geeetech A20T, and you can run it in SimplyPrint's online slicer, so there's nothing to install.

### What filament can the Geeetech A20T print?

Based on its specs (hotend up to 250C, heated bed up to 100C), the Geeetech A20T handles PLA or PETG well. See the full filament guide above for ABS, nylon, PC and composites.

### Does the Geeetech A20T work with OctoPrint or Klipper?

The Geeetech A20T works with OctoPrint or 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 Geeetech A20T's bed size and build volume?

The Geeetech A20T has a 250 x 250 mm print bed and prints up to 250 mm tall, a build volume of about 250 x 250 x 250 mm. See the full specifications table above for bed type, temperatures and more.

### Can the Geeetech A20T 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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