Makera Carvera
The most automated desktop CNC in the hobby price band — a 6-tool automatic tool changer, auto-probing, auto-levelling, WiFi, and a fully enclosed frame, all running on GPL v3 Smoothieware firmware that Makera open-sourced. The proprietary mainboard is the caveat; the firmware and CAM ecosystem are genuinely open.
If you want the most automated compact CNC router available without building a custom rig, the Carvera earns its place: GPL firmware, open CAM choices, no cloud mandate, and a 6-tool ATC that genuinely removes the most tedious part of multi-operation jobs. The mainboard is proprietary and the price ($5,499–$5,799) is steep — but you are buying a machine that is meaningfully open at the firmware and software layer, not a locked appliance. The Carvera Air ($2,499–$2,699) trades the ATC for a quick-change spindle and halves the price; the newer Z1 ($899) adds a camera and text-to-relief AI features but shrinks the work envelope to 200 × 200 mm.
What it is
The Carvera is a fully enclosed desktop CNC milling machine made by Makera, a company that launched the machine via Kickstarter and now ships directly. The flagship Carvera is a gantry-style 3-axis router with a 360 × 240 × 140 mm work area, a 0–15,000 RPM closed-loop spindle, and — the headline feature — an automatic tool changer (ATC) that holds up to six bits and swaps them without operator intervention. Auto-probing maps the workpiece surface and compensates for unevenness; auto-levelling adjusts toolpaths dynamically. The enclosure runs to around 65 dB in operation and has an interlock safety switch on the lid.
Makera sells two other models: the Carvera Air (300 × 200 × 130 mm, 200 W / 0–13,000 RPM, quick lever tool-change rather than automatic, ~30 kg, $2,499–$2,699) and the newer entry-level Z1 (200 × 200 × 100 mm, 150 W, $899, camera-equipped with text-to-relief AI — reviewed separately). This leaf covers the flagship Carvera and notes Air differences where they matter for openness.
The machine cuts wood, plastics, foam, carbon fibre, aluminium, brass, and FR4 PCB. An optional 4th-axis module (with harmonic drive) and a 2.5 W laser module are sold as add-ons for the flagship; the Air has its own rotary and 5 W laser add-ons.
Openness
The Carvera's openness story splits clearly: the firmware and CAM layers are genuinely open; the mainboard is proprietary.
- Firmware — GPL v3, open. The Carvera runs a branch of Smoothieware, the free, open-source G-code interpreter written in C++ for the LPC17xx ARM Cortex M3. Makera open-sourced their fork under GPL v3 on GitHub (
MakeraInc/CarveraFirmware). The community has an active parallel branch at Carvera-Community/Carvera_Community_Firmware that extends the official release with extra fixes and hosts prebuilt binaries so you do not need to compile. Firmware is updated via the Makera controller app or an SD card. No signed/locked bootloader prevents reflashing. - Mainboard — proprietary, but documented MCU. The controller PCB is Makera's own design — no published schematics, no open-hardware designation. The MCU itself is the LPC17xx (ARM Cortex M3), the same chip used by the open Smoothieboard, so the architecture is well-understood and the firmware can run on standard Smoothieware-compatible hardware. The Carvera Community org maintains an open-source controller project including builds for Linux and macOS. Replacement boards are sold by Makera, but they are proprietary parts, not commodity hardware.
- Klipper — not applicable. Klipper is 3D printer firmware; CNC routers use GRBL-family or Smoothieware controllers. The Carvera is in the Smoothieware/G-code-sender world. The open-source equivalents for anyone wanting to swap the controller are FluidNC (ESP32-based) or grblHAL — neither has been tested on the Carvera's hardware, but the Smoothieware firmware base is fully replaceable given the standard MCU.
- CAM — open-friendly. Kiri:Moto (browser-based, open-source, free) is officially listed by Makera as a supported CAM tool. Makera Studio (the unified CAM + controller app, formerly Makera CAM + CarveraController) is proprietary but free for Carvera owners and runs on Windows, macOS, and Android. Third-party CAM — Fusion 360, VCarve, SolidWorks — works via downloadable post-processor profiles from Makera's GitHub repository. The machine accepts standard G-code; no CAM lock-in. LightBurn is supported for the laser module.
- Ecosystem — semi-open. WiFi and USB connectivity are both supported; no internet connection is required to run the machine. Makera Studio is proprietary, but the community has an open-source CarveraController with Linux and macOS builds. There is no subscription and no mandatory cloud account — the machine runs offline once configured. The Carvera Community org maintains post-processors, tool libraries, and machine profiles for popular CAM packages.
AI tooling
There is none on the Carvera or Carvera Air. What the machine calls "smart" features are electromechanical automation: the ATC swaps bits under G-code control, auto-probing maps the stock surface with a contact probe, and auto-levelling compensates toolpaths in software. These are precision automation features — genuinely useful and well-executed — but they are not AI.
The newer Makera Z1 ($899) is the model in the Makera range that does include AI features: an integrated camera for remote monitoring and time-lapses, and text-to-relief design generation from text prompts or 2D images. If AI-assisted toolpath generation or camera-based job monitoring matters to you, the Z1 is where Makera has invested in that direction — at a smaller work envelope and without the ATC.
The Smoothieware firmware base and standard G-code interface mean that wiring in a camera or a tool-monitoring script is entirely feasible as a DIY project — the open-source CarveraController is a starting point — but nothing ships out of the box on the Carvera itself.
Where it wins
- 6-tool ATC at hobby prices. Automatic tool changing is rare under $10,000 in desktop CNC; the Carvera brings it to $5,499. Multi-operation jobs — rough with a large end mill, finish with a ball-nose, drill holes with a dedicated bit — run unattended. That changes what you can realistically produce in a session.
- GPL firmware, open-sourced by the vendor. Makera did not keep the firmware closed; the GPL v3 release is genuine and the community fork is active. This is materially better than a machine running a locked Klipper fork or an undisclosed binary blob.
- Open CAM ecosystem. Kiri:Moto (free, open-source), Makera Studio (free for owners), Fusion 360, VCarve, and SolidWorks all work with standard G-code. No walled CAM garden.
- No cloud mandate. WiFi is for convenience, not operation. The machine runs fully offline; no subscription, no account, no service dependency.
- Enclosed, quiet-ish, safe. ~65 dB with the enclosure closed, lid interlock, built-in dust collection on the flagship. A real consideration for shared spaces and home workshops.
- Active community. The Carvera Community org on GitHub maintains firmware, machine profiles, post-processors, and documentation. This is a meaningful signal for long-term repairability and support.
Where it's locked down
- Proprietary mainboard. No published schematics; the PCB is a Makera-only part. If Makera stops selling it, the controller becomes hard to replace. Compare this to a machine running a standard BTT or Duet board: there, replacements are commodity items. The LPC17xx MCU is standard hardware, but the PCB is not.
- Makera Studio is proprietary software. The community CarveraController is open-source, but Makera's official control software is not. Owners on Linux must use the community controller or a third-party G-code sender — doable, but the official stack does not support Linux.
- ATC bits under 1/4" only. The automatic tool changer is limited to shank diameters under ¼ inch. Larger-shank tooling requires a manual swap — a real limitation for heavier material removal. This is a design constraint of the ATC mechanism, not a software lock, but it narrows the machine's practical scope.
- Price premium for the ATC. At $5,499–$5,799, the flagship Carvera costs more than a Shapeoko 5.1 Pro or a Onefinity Elite, both of which offer more rigidity and a larger work envelope. You are paying specifically for the ATC and the all-in-one integration — justified if you actually use multi-tool operations, not if you mostly run single-tool jobs.
- Spindle is fixed, not router-swappable. Unlike the Shapeoko (which accepts third-party routers and spindles via the Z-plate mount), the Carvera's spindle is integrated into the ATC mechanism. You cannot drop in a Makita or Dewalt router to increase torque or reduce cost.
Who it's for
Makers and small workshops running multi-operation jobs — jewellery, PCBs, precision aluminium parts, inlays — who want to leave the machine unattended between tool changes. The Carvera is the right machine when the ATC is the thing you actually need and the price is in budget; it is the wrong machine when you just want the cheapest enclosed desktop CNC or the most rigid one for single-tool aluminium work.
The Carvera Air is the sensible starting point for most users: same firmware base, same open CAM ecosystem, nearly the same work area, at roughly half the price — you swap tools manually and lose the integrated dust collection, but everything else is equivalent. The Z1 is the entry point if AI-assist and a camera matter more than work area or ATC. For users who want a more open mainboard, the 3018 Pro (commodity Arduino electronics) or a custom MPCNC build are the alternatives — both sacrifice integration and automation for hardware transparency.
Specs & links
- Models (2026):
- Carvera — 360 × 240 × 140 mm, 0–15,000 RPM, 6-tool ATC, ~50 kg, $5,499 (sale) / $5,799 (regular)
- Carvera Air — 300 × 200 × 130 mm, 200 W / 0–13,000 RPM, manual quick-change, ~30 kg, $2,499 (sale) / $2,699 (regular)
- Z1 — 200 × 200 × 100 mm, 150 W / 0–15,000 RPM, camera + AI assist, ~$899 introductory
- Collets (Carvera): 1/8" standard; optional ¼", 6 mm, 4 mm. ATC limited to ≤¼" shanks.
- Connectivity: WiFi + USB; no mandatory internet connection.
- Firmware: MakeraInc/CarveraFirmware — Smoothieware branch, GPL v3.
- Community firmware: Carvera-Community/Carvera_Community_Firmware — prebuilt binaries, active.
- Open-source controller: Carvera Community org on GitHub — Linux + macOS CarveraController builds, machine profiles, post-processors.
- Official CAM / controller: Makera Studio — free, proprietary, Windows / macOS / Android.
- Open-source CAM: Kiri:Moto — browser-based, officially supported.
- Third-party CAM: Fusion 360, VCarve, SolidWorks via post-processor profiles at Carvera Community GitHub.
- Product pages: Carvera · Carvera Air · Carvera vs Air comparison (Makera).