Image: Maslow CNC
Maslow 4.1 CNC Router Kit
Maslow CNC
Best for: Tinkerers who want full-sheet cutting on a small budget and are prepared to build a frame, calibrate and troubleshoot
Typical starting price
$525Editorial baseline for this machine
Overall score
Best current buying path
Where to buy
Prices change often: compare the stores below
- Shipping varies by retailer
- Check manufacturer site for availability
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Quick verdict
Maslow 4.1 is a revision of the belt-driven Maslow 4 kit, not a new design. A sled carrying a DeWalt compact router rests on the sheet while four motorized belts pull it into position, giving roughly a 4 x 8 ft area depending on where the anchors sit. The 4.1 changes are reliability fixes: JST connectors in place of the ethernet cables between encoder and control boards, star-drive screws, larger injection-molded belt guards, bearings on both sides of the idler gear and precision-cut linear rods. The published specs are otherwise unchanged, including the +/-0.5 mm accuracy target and 2,500 mm/min top speed. Maslow describes it as a kit for early adopters that still needs fiddling, and it was out of stock with a waitlist when checked.
Who this fits best
Tinkerers who want full-sheet cutting on a small budget and are prepared to build a frame, calibrate and troubleshoot
Buy this if
Tinkerers who want full-sheet cutting on a small budget and are prepared to build a frame, calibrate and troubleshoot. Covers a full 4 x 8 ft sheet for a kit price far below gantry machines of that size.
Skip this if
Kit was sold out with a waitlist when checked, and Maslow has said a restock will take months, and router, bits, anchors and a rigid frame or floor are extra.
What else you still need
A DeWalt DWP611 router (D26200 in 230 V countries), router bits, four solid anchor points on a floor or a rigid frame, a flat spoilboard and a phone, tablet or computer with a browser. A vacuum for dust collection is optional.
Material reality check
Plywood, MDF and other sheet goods, softwood, plastics and foam. Not suited to metal, and hardwood or thick stock needs many shallow passes.
Better alternative if...
If you want full-sheet capacity on a conventional rail gantry and do not want to wait for kit stock, the open-source LowRider CNC V4 can be built from parts now. See LowRider CNC V4
Where it wins
- Covers a full 4 x 8 ft sheet for a kit price far below gantry machines of that size
- 4.1 fixes known Maslow 4 weak points: JST connectors instead of ethernet cables, star-drive screws, larger belt guards and idler gear bearings
- Automatic calibration measures the anchor geometry, so the frame does not need precise dimensions
- Packs down to about 350 x 280 mm and can anchor to a floor, bench or simple frame
- Open-source hardware and firmware with frequent firmware releases and an active forum
Where it falls short
- Kit was sold out with a waitlist when checked, and Maslow has said a restock will take months
- Router, bits, anchors and a rigid frame or floor are extra
- Maker's own accuracy target is +/-0.5 mm and depends on a good calibration, coarser than gantry routers
- Top speed is 2,500 mm/min and Maslow itself cuts at about 2,000 mm/min, so large jobs take time
- Maslow says it still needs a fair amount of fiddling to work well
Specifications
1219 × 2438 mm
29719 cm²
900W
Not included: DeWalt DWP611 router (120 V) or DeWalt D26200 (230 V), bought separately; these are the only routers Maslow guarantees to fit
Maslow five-axis control board (Wi-Fi, Bluetooth, USB-C) running Maslow's fork of FluidNC firmware; 4.1 uses JST-XH connectors to the belt encoder boards
n/a
$525
DIY kit
Full specification table
Relative to database
Benchmark Scores
Overall Score
Composite across 5 dimensions
Community Sentiment
Owners on the Maslow forum describe it as a capable hobby machine once set up, but most report a learning curve, with calibration and frame stiffness as the usual sticking points. The forum and developer support get consistent praise.
What owners love
- Owners credit the forum community and the lead developer for getting them through setup
- Owners who get it calibrated report cutting full sheets and completing multiple projects
Common complaints
- Owners report calibration runs that end with low fitness or never converge, usually traced to frame stiffness, anchor measurements or belt condition
- Owners describe a long learning curve and some jobs stopping mid-cut from lost connections or firmware bugs
- Owners note that frequent firmware updates can change behavior and settings
Typical upgrades
- Owners build their own frames, with several moving to horizontal X-shaped or collapsible frames, or anchoring to shop walls
- Owners adjust belt retraction force and other settings in the configuration file
Community sentiment is aggregated from forums, Reddit, Discord, and manufacturer communities. Individual experiences may vary.