开放性：大多开放（5分制3.9分）
封闭生态系统打开

Two Trees (TwoTrees) is a Shenzhen maker of desktop fabrication machines, founded in 2017. It built budget 3D printers from 2018 (the Sapphire Pro and Sapphire Plus, and the Bluer) and launched the SK1, a Klipper-based CoreXY printer, at the end of 2023. By October 2026 its own stores sell CNC routers and laser engravers; the 3D printer section lists no printers, and only spare parts for the SK1 remain. Its printers were bought mostly by hobbyists who like to tinker.

成立: 2017 · 总部: Shenzhen, China · 所有权: Parent company: Shenzhen TwoTrees Holdings Co., Ltd. · 网站: twotrees3d.com

Open in practice: the SK1 runs stock Klipper with no cloud, and the older printers ran Marlin. The weak spot is support rather than lock-in: Two Trees has moved on to CNC and laser machines, documentation is thin and some SK1 parts are hard to find.

固件和自定义固件
●●●●●		 Tom's Hardware found the SK1 runs unmodified ('vanilla') Klipper, which is open source and replaceable. For the older Sapphire printers, a GitHub account named TwoTrees-china published Marlin 2.0 source for their MKS Robin Nano board in 2020 (not updated since), and upstream Klipper ships configs for the Sapphire Pro and Sapphire Plus. [7][9][10]
本地控制与集成
●●●●●		 Tom's Hardware found the SK1 runs vanilla Klipper: files and settings are reachable from a computer on the home network, files can also go by USB stick, and there is no cloud or phone app to use. Klipper's standard web stack, Moonraker, documents its API, so other software can control the printer locally. [7][16]
第三方耗材、切片软件和零件
●●●●●		 Any 1.75 mm filament and any slicer (Cura and PrusaSlicer profiles come on the SK1's USB stick). But the SK1's hotend copies Bambu Lab's design with a small separate nozzle, which Tom's Hardware found hard to source. [7]
维修和备件
●●●●●		 Two Trees' store still sells SK1 parts: mainboard, heated bed, touchscreen, fans, PEI plate and power adapter, and it published a printable SK1 extruder kit on GitHub. Tom's Hardware found nozzles and hotends hard to find, and we found none listed in the store. [11][12][13][8][7]
社区和文档
●●●●●		 Tom's Hardware called the SK1's documentation sparse. Two Trees has a wiki and a download page, now centred on its CNC and laser machines; beyond that, owners rely on upstream projects such as Klipper. [7][14][15]
优点
  • The SK1 runs stock Klipper: control it from a browser on your own network, with no account or cloud.
  • Open-source firmware, so the SK1 can be modified and tuned freely.
  • Common SK1 spare parts (mainboard, heated bed, touchscreen, fans) are still sold by Two Trees.
  • Works with any 1.75 mm filament and any slicer; Cura and PrusaSlicer profiles are included.
缺点
  • Two Trees no longer lists any 3D printer in its own stores; it now focuses on CNC routers and laser engravers.
  • Sparse documentation for the SK1, per Tom's Hardware.
  • The SK1's Bambu-style hotend and nozzle are hard to source.
  • Tom's Hardware found typos and wrong-language menus on the SK1 touchscreen.
实绩
  • 二月 2026: By February 2026 the 3D printer page of Two Trees' US store listed no products; in October 2025 it still showed the SK1 (Internet Archive captures). In October 2026 the store sells CNC routers and lasers, plus SK1 spare parts. [5][6][4]
  • 十月 2024: Two Trees published a redesigned SK1 extruder kit (filament cutter, consumable detection) on GitHub under GPL-3.0, with firmware and printable STL files. [8]
  • 2023: Two Trees introduced the SK1, its first high-speed CoreXY printer, at the end of 2023. [1]
基于16个来源整理，最后核查于2026年10月18日。 显示来源
  1. About TwoTrees | CNC Routers and Laser Engravers for Makers twotrees3d.com
  2. Contact Us - Twotrees twotrees3d.com
  3. Twotrees | CNC Router Machine for Beginners twotrees3d.com
  4. TwoTrees 3D Printers (store collection) twotrees3d.com
  5. Internet Archive: twotrees3d.com 3D printer collection, 6 October 2025 web.archive.org
  6. Internet Archive: twotrees3d.com 3D printer collection, 4 February 2026 web.archive.org
  7. Two Trees SK1 Review: High Speeds, Open Source | Tom's Hardware tomshardware.com
  8. Twotrees3Dofficial / SK1 Extruder kit (GitHub) github.com
  9. TwoTrees-china / Marlin2.0_MKS-Robin_nano (GitHub) github.com
  10. Klipper: printer-twotrees-sapphire-pro-sp-3-2020.cfg github.com
  11. Twotrees Motherboard with Driver for SK1 3D Printer twotrees3d.com
  12. Twotrees Heated Bed for SK1 3D Printer twotrees3d.com
  13. Twotrees Touch Screen for SK1 3D Printer twotrees3d.com
  14. TwoTrees Wiki wiki.twotrees3d.com
  15. TwoTrees Download twotrees3d.com
  16. moonraker.readthedocs.io