Our Pick: CNC 6040 Router
It wins 6 out of 9 comparison categories across specs and benchmark scores.
Benchmark Scores
Side-by-side score comparison across all five benchmark dimensions.
Overall
CNC 6040 Router
Pros
- Cast aluminum frame provides excellent rigidity for the price
- 800W water-cooled spindle cuts hardwoods and aluminum
- Ball screws on all axes deliver good precision
- Massive aftermarket parts and upgrade ecosystem
- Well-documented platform with years of community experience
Cons
- Quality varies dramatically between sellers and batches
- No brand warranty or consistent customer support
- Water cooling system requires setup and maintenance
- Electrical components may need upgrading for safety
- Assembly quality requires inspection and adjustment out of the box
Sienci LongMill MK2 12x12
Pros
- Excellent documentation and beginner-friendly setup from Sienci
- Anti-backlash ACME lead screws on all axes
- gSender is a polished, purpose-built CNC sender
- Active community forums with responsive manufacturer support
- Generous Z-axis travel of 114mm
Cons
- Small 12x12 inch work area for a machine at this price
- Router not included adds $100+ to total cost
- Larger LongMill models offer better value per square inch
- V-wheel motion system rather than linear rails
- Lead screws are slower than ball screws
Verdict
CNC 6040 Router wins this comparison with 6 categories to 3.
It wins 6 out of 9 comparison categories across specs and benchmark scores.
Where to Buy
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CNC 6040 Router
$800Sienci LongMill MK2 12x12
$800As an Amazon Associate, CNCRouterInfo earns from qualifying purchases at no extra cost to you.
Frequently Asked Questions
What is the difference between CNC 6040 Router and Sienci LongMill MK2 12x12?
The CNC 6040 Router ($800) features a 800W spindle with a 600×400mm work area and a Cast aluminum with ball screws frame. The Sienci LongMill MK2 12x12 ($800) features a 710W spindle with a 305×305mm work area and a Steel and aluminum with anti-backlash lead screws frame. Overall, the CNC 6040 Router wins more comparison categories.
Which is better value for money — CNC 6040 Router or Sienci LongMill MK2 12x12?
Both machines are identically priced at $800. Our value scores rate the CNC 6040 Router higher at 85/100.
Which router is easier to set up and use?
Based on our ease-of-use benchmarks, the Sienci LongMill MK2 12x12 scores higher (88/100 vs 35/100). Both support Mach3, UGS, CNCjs among other software options.