Image: Sienci Labs
Sienci LongMill MK2 12x12
Sienci Labs
Best for: Beginners with limited space who want excellent documentation and a supportive community for learning CNC
Typical starting price
$800Editorial baseline for this machine
Overall score
Best current buying path
Where to buy
Bundle from $800 · checked Apr 12
- Shipping varies by retailer
- Check manufacturer site for availability
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Quick verdict
The Sienci LongMill MK2 12x12 is the entry-level model in the LongMill lineup, offering a compact 305x305mm work area. What sets it apart from budget machines is the build quality -- anti-backlash lead screws, steel components, and the ability to mount a full-size trim router. Sienci Labs provides some of the best documentation in the hobby CNC space, and their gSender software is purpose-built and polished. The 12x12 model is best for those with limited workspace or budget, though the 30x30 model is a significantly better value if space and budget allow.
Who this fits best
Beginners with limited space who want excellent documentation and a supportive community for learning CNC
Where it wins
- 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
Where it falls short
- 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
Specifications
305 × 305 mm
930 cm²
710W
Router mount (Makita RT0701C or DeWalt DWP611, not included)
18 kg
$800
mid range
Full specification table
Relative to database
Benchmark Scores
Overall Score
Composite across 5 dimensions
