Our Pick: Sienci Labs LongMill MK2 30x30
It scores 76/100 overall versus 60/100, winning 5 out of 9 comparison categories.
Benchmark Scores
Side-by-side score comparison across all five benchmark dimensions.
Overall
Sienci Labs LongMill MK2 30x30
Pros
- Excellent build quality with steel and aluminum construction
- Anti-backlash lead screws on all axes
- Outstanding documentation and video tutorials
- gSender software is purpose-built and beginner-friendly
- Strong community and Canadian customer support
Cons
- Router not included adds to total cost
- Assembly takes 4-6 hours
- Lead screws are slower than belt drives for rapids
- Dust shoe is an optional extra
OpenBuilds LEAD 1515 CNC Router
Pros
- Enormous 1500x1500mm work area at an unbeatable price
- Open-source design allows extensive customization
- OpenBuilds CONTROL software is free and excellent
- Massive community with years of modifications and improvements documented
- BlackBox controller is plug-and-play
Cons
- Frame rigidity is seriously compromised at this span
- V-wheel bearings wear quickly under the stresses of this size
- Belt drive introduces noticeable accuracy loss at the extremes
- Router not included and needs to be purchased separately
- Requires a very large, flat work surface
Verdict
Sienci Labs LongMill MK2 30x30 wins this comparison with 5 categories to 4.
It scores 76/100 overall versus 60/100, winning 5 out of 9 comparison categories.
Where to Buy
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Sienci Labs LongMill MK2 30x30
$1200OpenBuilds LEAD 1515 CNC Router
$1100As an Amazon Associate, CNCRouterInfo earns from qualifying purchases at no extra cost to you.
Frequently Asked Questions
What is the difference between Sienci Labs LongMill MK2 30x30 and OpenBuilds LEAD 1515 CNC Router?
The Sienci Labs LongMill MK2 30x30 ($1200) features a 710W spindle with a 762×762mm work area and a Steel and aluminum with anti-backlash lead screws frame. The OpenBuilds LEAD 1515 CNC Router ($1100) features a 710W spindle with a 1500×1500mm work area and a V-Slot aluminum extrusion frame. Overall, the Sienci Labs LongMill MK2 30x30 wins more comparison categories.
Which is better value for money — Sienci Labs LongMill MK2 30x30 or OpenBuilds LEAD 1515 CNC Router?
The OpenBuilds LEAD 1515 CNC Router is $100 cheaper at $1100 vs $1200. Our value scores rate the OpenBuilds LEAD 1515 CNC Router higher at 88/100.
Which router is easier to set up and use?
Based on our ease-of-use benchmarks, the Sienci Labs LongMill MK2 30x30 scores higher (85/100 vs 65/100). Both support gSender, UGS, CNCjs among other software options.
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