Our Pick: Sienci Labs LongMill MK2 30x30

It scores 76/100 overall versus 70/100, winning 5 out of 9 comparison categories.

Sienci Labs
Spec
MillRight Mega
$1200
Price
$2699
762 × 762 mm
Work area
889 × 889 mm
114 mm
Z travel
159 mm
710 W
Spindle power
1500 W
26 kg
Weight
n/a
Steel and aluminum with anti-backlash lead screws
Frame
Heavy-duty aluminum extrusion frame and gantry with thicker joining plates; linear profile rails on all axes, steel rack-and-pinion X/Y drive with independently driven Y motors, screw-driven Z
LongBoard (GRBL-based, custom)
Controller
GRBL in a pre-wired control box; Masso G3 Touch with jog MPG and tool setter optional
gSender, UGS, CNCjs, Easel
Software
UGS (MillRight version), Fusion 360, Easel, Vectric Cut2D, VCarve or Aspire
Sienci Labs LongMill MK2 30x30 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 30x30 (from $1,400) · Sienci Labs LongMill MK3 30x30 vs MillRight Mega V 2 XL CNC Router

MillRight Mega V 2 XL CNC Router wins 3 of 4 spec categories. Sienci Labs LongMill MK2 30x30 costs $1,499 less. Sienci Labs LongMill MK2 30x30 leads by 6 points overall — here’s where those points come from:

Benchmark Scores

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

76
Sienci Labs

Overall

70
MillRight Mega
72 Value 82
58 Rigidity 45
62 Precision 48
85 Ease of use 58
60 Capability 58

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

  • Needs a 1067 x 1257 mm (42 x 49.5 inch) footprint plus working room around it
  • Assembly takes 4-6 hours
  • Lead screws are slower than belt drives for rapids
  • Dust shoe is an optional extra

MillRight Mega V 2 XL CNC Router

Pros

  • 889 x 889 mm (35 x 35 inch) cutting area with a 159 mm (6.25 inch) Z stroke
  • Linear profile rails on all axes replace the original XL's X/Y V-wheels
  • Steel rack-and-pinion X/Y drive with self-squaring dual Y motors and standard homing switches
  • Vacuum plenum bed and a stand with steel braces are offered for this size
  • Same frame takes Masso G3 control, 1.5 or 2.2 kW spindles, a 4th axis or a laser later

Cons

  • The $2,699 XL price has no router, router mount, bed or stand
  • Needs a 1067 x 1257 mm (42 x 49.5 inch) footprint plus working room around it
  • Kit assembly is required
  • The 2.2 kW spindle options need a 220 V supply
  • Few independent owner reviews of the Mega V 2 are available yet

Verdict

Sienci Labs LongMill MK2 30x30 wins this comparison with 5 categories to 4.

It scores 76/100 overall versus 70/100, winning 5 out of 9 comparison categories.

Where to Buy

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

Sienci Labs LongMill MK2 30x30

$1200

MillRight Mega V 2 XL CNC Router

$2699

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Frequently Asked Questions

What is the difference between Sienci Labs LongMill MK2 30x30 and MillRight Mega V 2 XL CNC Router?

The Sienci Labs LongMill MK2 30x30 ($1,200) features a 710W spindle with a 762×762mm work area and a Steel and aluminum with anti-backlash lead screws frame. The MillRight Mega V 2 XL CNC Router ($2,699) features a 1500W spindle with a 889×889mm work area and a Heavy-duty aluminum extrusion frame and gantry with thicker joining plates; linear profile rails on all axes, steel rack-and-pinion X/Y drive with independently driven Y motors, screw-driven Z. Overall, the Sienci Labs LongMill MK2 30x30 wins more comparison categories.

Which is better value for money — Sienci Labs LongMill MK2 30x30 or MillRight Mega V 2 XL CNC Router?

The Sienci Labs LongMill MK2 30x30 is $1,499 cheaper at $1,200 vs $2,699. Our value scores rate the MillRight Mega V 2 XL CNC Router higher at 82/100.

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 58/100). Both support gSender, UGS, CNCjs among other software options.

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