# Geeetech Thunder: specs, SimplyPrint compatibility and setup > **Not confirmed yet - help us find out** (We can't tell). We don't know yet. If you have one, you can find out in a few minutes and confirm it for everyone. - By Geeetech, China - Launched September 2022 - Canonical page: https://simplyprint.io/compatibility/geeetech-thunder ## Geeetech Thunder at a glance The Geeetech Thunder is a 3D printer by Geeetech with a 250 x 250 x 260 mm build volume. - Build volume: 250 x 250 x 260 mm - Enclosure: Open frame - Max print speed: 300 mm/s - Motion system: Bed slinger - Prints well: PLA, PETG, TPU & flexibles, ABS & ASA - Connectivity: USB, SD card ## Connect the Geeetech Thunder to SimplyPrint | Way of connecting | Status | What you need | Notes | | :--- | :--- | :--- | :--- | | SimplyPrint | Not confirmed yet - help us find out | | | | OctoPrint (Directly, over USB) | Not confirmed yet - help us find out | | 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](https://wiki.geeetech.com/index.php/Geeetech_Thunder_3D_printer)) | | Klipper (Moonraker) | Not compatible | | Ships Geeetech's own closed-loop firmware (configured with Smartto Kits); no Klipper port for its board is known. ([Source](https://wiki.geeetech.com/index.php/Geeetech_Thunder_3D_printer)) | - [Help us confirm](https://simplyprint.io/compatibility/geeetech-thunder/confirm) ## 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. - [PrusaSlicer](https://simplyprint.io/features/slicer/prusaslicer): No profile for the Geeetech Thunder · Runs in the SimplyPrint cloud - [OrcaSlicer](https://simplyprint.io/features/slicer/orcaslicer): No profile for the Geeetech Thunder · Runs in the SimplyPrint cloud - [BambuStudio](https://simplyprint.io/features/slicer/bambustudio): No profile for the Geeetech Thunder · Runs in the SimplyPrint cloud - [ElegooSlicer](https://simplyprint.io/features/slicer/elegooslicer): No profile for the Geeetech Thunder · Runs in the SimplyPrint cloud - [CrealityPrint](https://simplyprint.io/features/slicer/crealityprint): No profile for the Geeetech Thunder · Runs in the SimplyPrint cloud - [Cura](https://simplyprint.io/features/slicer/cura): No profile for the Geeetech Thunder · Runs in the SimplyPrint cloud - [Kiri:Moto](https://simplyprint.io/features/slicer/kirimoto): No profile for the Geeetech Thunder · Runs in the SimplyPrint cloud We only list slicers you can use in the SimplyPrint cloud, so there may be others for the Geeetech Thunder. ## Geeetech Thunder specifications: bed size, print height and more ### 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 [Read more by the manufacturer](https://wiki.geeetech.com/index.php/Geeetech_Thunder_3D_printer) ## 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. | ## Printers like the Geeetech Thunder that work with SimplyPrint - [Geeetech Mizar Pro](https://simplyprint.io/compatibility/geeetech-mizar-pro): Expected to work, 220 x 220 x 260 mm, Also by Geeetech · Similar build volume · Also prints ABS & ASA - [Geeetech Mizar S](https://simplyprint.io/compatibility/geeetech-mizar-s): Expected to work, 255 x 255 x 260 mm, Also by Geeetech · Similar build volume · Also prints ABS & ASA - [Creality Ender-3 V3 KE](https://simplyprint.io/compatibility/creality-ender-3-v3-ke): Compatible, 220 x 220 x 240 mm, Similar build volume · Also prints ABS & ASA - [Creality Ender-3 S1 Pro](https://simplyprint.io/compatibility/creality-ender-3-s1-pro): Compatible, 220 x 220 x 270 mm, Similar build volume · Also prints ABS & ASA ## About Geeetech 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: https://www.geeetech.com Openness: Mostly open (3.6 of 5) 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 (3 of 5): 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. - Local control and integrations (4 of 5): 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. - Third-party filament, slicers and parts (4 of 5): 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. - Repairs and spare parts (4 of 5): 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. - Community and documentation (3 of 5): 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. ### 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. - 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. - 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. How Geeetech compares with every other brand: https://simplyprint.io/articles/best-3d-printer ## Frequently asked questions ### 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. ### When did the Geeetech Thunder come out? Geeetech launched the Thunder in September 2022. --- © 2026 SimplyPrint. All rights reserved. This page and the compatibility, specification and review data on it are compiled by SimplyPrint and may not be copied, scraped, reproduced or republished, in whole or in part, without prior written permission. Printer images are the property of their respective manufacturers and are shown for identification purposes only; SimplyPrint claims no ownership of them. Quoted reviews belong to their authors.