Avid CNC
Spec
Sienci Labs
$2800
Price
$1400
660 × 961 mm
Work area
1219 × 762 mm
152 mm
Z travel
114 mm
710 W
Spindle power
710 W
120 kg
Weight
32 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, custom)
Centroid CNC12, Fusion 360, VCarve, Aspire
Software
gSender, UGS, CNCjs, Easel
Sienci Labs LongMill MK2 48x30 is no longer sold new. Sienci Labs replaced the LongMill MK2 with the MK3, which adds linear rails and closed-loop motors. Closest current alternative: Sienci Labs LongMill MK3 48x30 (from $1,800) · Sienci Labs LongMill MK3 48x30 vs Avid CNC Benchtop Pro 2436

Specs are evenly split between both machines. Sienci Labs LongMill MK2 48x30 costs $1,400 less. Avid CNC Benchtop Pro 2436 leads by 6 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

74
Sienci Labs
42 Value 75
88 Rigidity 50
90 Precision 58
40 Ease of use 82
82 Capability 62

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 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

Verdict

These routers are evenly matched with 4 wins each. The right choice depends on your specific priorities — compare individual specs and scores above to decide.

Where to Buy

Price-first merchant links with the clearest reason to click first.

Avid CNC Benchtop Pro 2436

$2800

Sienci Labs LongMill MK2 48x30

$1400

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Frequently Asked Questions

What is the difference between Avid CNC Benchtop Pro 2436 and Sienci Labs LongMill MK2 48x30?

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 Labs LongMill MK2 48x30 ($1,400) features a 710W spindle with a 1219×762mm work area and a Steel and aluminum with anti-backlash lead screws frame. Both machines are evenly matched overall.

Which is better value for money — Avid CNC Benchtop Pro 2436 or Sienci Labs LongMill MK2 48x30?

The Sienci Labs LongMill MK2 48x30 is $1,400 cheaper at $1,400 vs $2,800. 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 Sienci Labs LongMill MK2 48x30 scores higher (82/100 vs 40/100). Both support Mach4, Fusion 360, VCarve among other software options.

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