Does the Geeetech Thunder 3D printer work with SimplyPrint, OctoPrint, Mainsail and Fluidd?
Each way of connecting it, what it needs, and how to set it up.
Has a USB-B (CH340) device port, used by Geeetech's Smartto Kits at 115200 baud, but no source shows it accepting a G-code stream from OctoPrint.
Source
Ships Geeetech's own closed-loop firmware (configured with Smartto Kits); no Klipper port for its board is known.
Source
What slicer to use for the Geeetech Thunder
None of the slicers in SimplyPrint's cloud can slice for the Geeetech Thunder that we know of: it doesn't take standard G-code. Use the slicer its maker recommends.
We only list slicers you can use in the SimplyPrint cloud, so there may be others for the Geeetech Thunder.
No online slicing for the Geeetech Thunder
Geeetech Thunder specifications: bed size, print height and more
Its size, temperatures, multi-material and how it connects, from the maker and our own research.
Read more by the manufacturer
Size
Build volume
250 x 250 x 260 mm
Bed type
Square
Bed size
250 x 250 mm
Max print height
260 mm
Printing
Enclosure
Open frame
Motion system
Bed slinger
Max print speed
300 mm/s
Max extruder temperature
250 °C
Has heated bed
Yes
Max bed temperature
110 °C
Number of nozzles
1
Toolheads
1
Direct drive
No
Probing tool / Auto Bed Leveling
Yes
Filament width
1.75 mm
Multi-material
Toolchanger or hotend changer
No
IDEX (independent dual extruders)
No
Connecting
Connectivity
USB, SD card
Prints from
microSD card, USB stick
USB socket for printing over USB
USB-B
Supports serial printing
Unknown
Shipped firmware
The maker's own
Files and slicing
Supported file formats
G-code (.gcode, .gco, .g)
The printer
Printer manufacturer / brand
Geeetech
Printer model name
Thunder
Made by a company from
China
Launched
September 2022
Disclaimer:
We strive to keep this information as current and accurate as possible, but cannot guarantee its completeness or reliability. Our data is based on user submissions and manufacturer references.
What filament can the Geeetech Thunder print?
Filament compatibility for the Geeetech Thunder: the materials Geeetech lists for it.
Filament
Suitability
Notes
PLA
Great
On the maker's list of materials for this printer.
PETG
Great
On the maker's list of materials for this printer.
TPU & flexibles
Great
On the maker's list of materials for this printer.
ABS & ASA
Great
On the maker's list of materials for this printer.
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.
Tip: this is a general guide from the printer's specs - always check your filament's recommended settings. With SimplyPrint you can save a profile for each spool and track exactly what filament you have in stock.
Printers like the Geeetech Thunder that work with SimplyPrint
Printers from the same maker, of a similar size, printing the same engineering materials or multi-material like it, that you can buy today and that we know work with SimplyPrint.
Who makes the Geeetech Thunder, and how open Geeetech leaves you: whether its printers run without its cloud, take any filament and slicer, and can be repaired. Each area is rated from public sources.
Openness: Mostly open (3.6 of 5)
Mostly open
Walled gardenOpen
Geeetech (HK GETECH Co., Limited, with its office at Shenzhen Getech Technology) is a Chinese 3D printer and filament maker that says it has worked on 3D printers since 2011. It made a long line of budget printers, from Prusa i3 kits through the A10/A20/A30, Mizar and Thunder series, and now sells the compact M1 and M1S for children and beginners alongside a large filament range.
Founded:
2011 ·
Headquarters:
Shenzhen, China (company registered in Hong Kong) ·
Ownership:
HK GETECH Co., Limited; China office Shenzhen Getech Technology Co., Ltd ·
Website:www.geeetech.com
Mostly open, with a caveat: the older printers came with published Marlin source and schematics, while the current M1 line has closed firmware but still runs locally with any filament and open slicers.
Firmware and custom firmware ●●●●●
Geeetech published Marlin-based firmware source and board schematics for its earlier printers on GitHub (Geeetech3D) and its download centre, including open-source files for the Mizar S updated until 2024. For the current M1 and M1S it offers firmware binaries only; we found no source.
[11][12][9][7]
Local control and integrations ●●●●●
The M1 Mini prints from a TF card or over USB with no account. The M1S adds Wi-Fi and the Geeetech app for printing from its model library 'anywhere', a remote feature that runs through Geeetech's app. Geeetech documents no network interface for other software, and for these models it offers only firmware binaries.
[4][5][8]
Third-party filament, slicers and parts ●●●●●
Any 1.75 mm filament (PLA and TPU on the M1), and Geeetech publishes Cura and OrcaSlicer profiles for it. Nozzles and hot-end parts for the M1 are Geeetech's own, sold in its store.
[4][7][10]
Repairs and spare parts ●●●●●
Geeetech sells M1 parts (hotbed, nozzles, hot-end components, PEI plate) and posts videos on replacing the nozzle and the motherboard; schematics for older boards are published.
[10][7][9]
Community and documentation ●●●●●
A long-running wiki, a download centre with manuals, firmware, profiles and videos per model, and GitHub repositories. Independent coverage of the current M1 line is scarce.
[13][6][11]
Pros
Inexpensive compact printers aimed at children and beginners.
Any 1.75 mm filament, with Cura and OrcaSlicer profiles published.
Spare nozzles, hotbeds and hot-end parts for the M1, plus repair videos.
Downloads (manuals, firmware) kept online for printers going back many years.
Cons
No published firmware source for the current M1 and M1S.
The M1S's remote printing runs through Geeetech's phone app; we found no privacy terms covering the app.
Small 100 x 110 x 100 mm build volume on the M1.
Little independent testing of the current models that we could find.
Track record
November 2025: Geeetech added the M1S, an M1 with Wi-Fi and a phone app; its app was posted in September 2025 and its quick guide in November 2025.
[8]
February 2025: Geeetech released the M1 mini printer for children and beginners; its first setup and maintenance videos were posted in February 2025 and its manual in March 2025.
[7]
October 2022: Geeetech published open-source files for the Mizar S on GitHub, updated until March 2024; files for the Mizar and Mizar Pro followed in November 2022.
[12][11]
Researched from 13 sources, last checked October 18, 2026. Show sources
Is the Geeetech Thunder compatible with SimplyPrint?
We don't know yet. SimplyPrint works with 130+ brands and 600+ models via OctoPrint, Klipper and built-in integrations; if you have a Geeetech Thunder, our compatibility check tells you in a few questions how it could connect.
What slicer should I use for the Geeetech Thunder?
None of the slicers in SimplyPrint's cloud can slice for the Geeetech Thunder that we know of: it doesn't take standard G-code. Use the slicer its maker recommends.
What filament can the Geeetech Thunder print?
Geeetech lists PLA, PETG, TPU & flexibles and ABS & ASA for the Thunder.
What is the Geeetech Thunder's bed size and build volume?
The Geeetech Thunder has a 250 x 250 mm print bed and prints up to 260 mm tall, a build volume of about 250 x 250 x 260 mm. See the full specifications table above for bed type, temperatures and more.
China
PrusaSlicer
OrcaSlicer
BambuStudio
ElegooSlicer
CrealityPrint
Cura
Kiri:Moto
