Our Pick: Avid CNC Benchtop Pro 2436

It scores 80/100 overall versus 62/100, winning 5 out of 8 comparison categories.

Avid CNC
Spec
Sienci LongMill
$2800
Price
$800
660 × 961 mm
Work area
305 × 305 mm
152 mm
Z travel
114 mm
710 W
Spindle power
710 W
120 kg
Weight
18 kg
Aluminum frame with profile linear guides and ball screws on all axes
Frame
Steel and aluminum with anti-backlash lead screws
Avid CNC control system running Centroid CNC12; motor and control package selected when ordering
Controller
LongBoard (GRBL-based)
Centroid CNC12, Fusion 360, VCarve, Aspire
Software
gSender, UGS, CNCjs, Fusion 360, VCarve
Sienci LongMill MK2 12x12 is no longer sold new. Sienci has moved on to the LongMill MK3 and no longer sells the 12x12 size. Closest current alternative: Sienci Labs LongMill MK3 30x30 (from $1,400) · Sienci Labs LongMill MK3 30x30 vs Avid CNC Benchtop Pro 2436

Avid CNC Benchtop Pro 2436 wins 3 of 4 spec categories. Sienci LongMill MK2 12x12 costs $2,000 less. Avid CNC Benchtop Pro 2436 leads by 18 points overall — here’s where those points come from:

Benchmark Scores

Side-by-side score comparison across all five benchmark dimensions.

80
Avid CNC

Overall

62
Sienci LongMill
42 Value 58
88 Rigidity 52
90 Precision 60
40 Ease of use 88
82 Capability 48

Avid CNC Benchtop Pro 2436

Pros

  • Industrial-grade linear rails and ball screws
  • Aluminum frame with profile linear guides and ball screws on every axis
  • Designed for wood, plastics and non-ferrous metal work with a suitable spindle and tooling
  • True CNC motion controller (not GRBL) for advanced features

Cons

  • Expensive for the work area offered
  • Spindle, control package and work surface affect the complete-system cost
  • CNC12 setup and learning the machine still take time
  • Requires a suitable Windows control PC for CNC12
  • Assembly is more involved than consumer machines

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

Avid CNC Benchtop Pro 2436 wins this comparison with 5 categories to 3.

It scores 80/100 overall versus 62/100, winning 5 out of 8 comparison categories.

Where to Buy

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Frequently Asked Questions

What is the difference between Avid CNC Benchtop Pro 2436 and Sienci LongMill MK2 12x12?

The Avid CNC Benchtop Pro 2436 ($2,800) features a 710W spindle with a 660×961mm work area and a Aluminum frame with profile linear guides and ball screws on all axes 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 Avid CNC Benchtop Pro 2436 wins more comparison categories.

Which is better value for money — Avid CNC Benchtop Pro 2436 or Sienci LongMill MK2 12x12?

The Sienci LongMill MK2 12x12 is $2,000 cheaper at $800 vs $2,800. Our value scores rate the Sienci LongMill MK2 12x12 higher at 58/100.

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 40/100). Both support Mach4, Fusion 360, VCarve among other software options.

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