

Our Pick: Sienci Labs LongMill MK2 48x30
It scores 74/100 overall versus 64/100, winning 7 out of 9 comparison categories.
Sienci Labs LongMill MK2 48x30 wins 3 of 4 spec categories. Both are similarly priced. Sienci Labs LongMill MK2 48x30 leads by 10 points overall — here’s where those points come from:
Benchmark Scores
Side-by-side score comparison across all five benchmark dimensions.
Overall
Sienci Labs LongMill MK2 48x30
Pros
- Large 48x30 inch work area handles full-width projects
- Same excellent documentation as the 30x30 model
- Anti-backlash lead screws on all axes
- gSender software is beginner-friendly and well-maintained
- Responsive Canadian customer support
Cons
- Router not included adds to total cost
- Larger span reduces rigidity compared to 30x30
- Requires significant workspace footprint
- Heavier and more complex assembly
- Lead screw speed limits rapids on longer axis
Inventables X-Carve
Pros
- Easel software is the most beginner-friendly CAD/CAM available
- Router included for out-of-box cutting
- Large 750x750mm work area
- Massive community with years of projects and tutorials
- Good selection of add-ons and accessories
Cons
- V-wheel motion system is outdated compared to linear rail competitors
- Rigidity is below average for the price
- Belt drive limits precision
- Easel Pro requires a subscription for advanced features
Verdict
Sienci Labs LongMill MK2 48x30 wins this comparison with 7 categories to 2.
It scores 74/100 overall versus 64/100, winning 7 out of 9 comparison categories.
Where to Buy
Price-first merchant links with the clearest reason to click first.
Sienci Labs LongMill MK2 48x30
$1400Inventables X-Carve
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Frequently Asked Questions
What is the difference between Sienci Labs LongMill MK2 48x30 and Inventables X-Carve?
The Sienci Labs LongMill MK2 48x30 ($1400) features a 710W spindle with a 1219×762mm work area and a Steel and aluminum with anti-backlash lead screws frame. The Inventables X-Carve ($1400) features a 900W spindle with a 750×750mm work area and a Aluminum extrusion with steel gantry plates frame. Overall, the Sienci Labs LongMill MK2 48x30 wins more comparison categories.
Which is better value for money — Sienci Labs LongMill MK2 48x30 or Inventables X-Carve?
Both machines are identically priced at $1400. Our value scores rate the Sienci Labs LongMill MK2 48x30 higher at 75/100.
Which router is easier to set up and use?
Based on our ease-of-use benchmarks, the Inventables X-Carve scores higher (92/100 vs 82/100). Both support gSender, UGS, CNCjs among other software options.