Our Pick: OpenBuilds LEAD 1515 CNC Router

It scores 60/100 overall versus 56/100, winning 6 out of 10 comparison categories.

MPCNC Primo
Spec
OpenBuilds LEAD
$233
Price
$1100
600 × 600 mm
Work area
1170 × 1250 mm
80 mm
Z travel
90 mm
660 W
Spindle power
710 W
12 kg
Weight
30 kg
3D printed parts + EMT conduit/stainless steel tubing
Frame
V-Slot aluminum extrusion with V-wheel guidance and tensioned lead-screw drives
Builder-selected electronics; current Jackpot-family controllers run FluidNC, while earlier boards may use Marlin
Controller
Optional OpenBuilds BlackBox X32 running grblHAL; older bundles used BlackBox 4X/GRBL
FluidNC WebUI (Jackpot controllers), Estlcam (CAM), Repetier-Host (compatible Marlin builds), UGS or other sender only when compatible with the fitted firmware
Software
OpenBuilds CONTROL, UGS, CNCjs

OpenBuilds LEAD 1515 CNC Router wins 4 of 5 spec categories. MPCNC Primo (Mostly Printed CNC) costs $867 less. OpenBuilds LEAD 1515 CNC Router leads by 4 points overall — here’s where those points come from:

Benchmark Scores

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

56
MPCNC Primo

Overall

60
OpenBuilds LEAD
92 Value 88
28 Rigidity 22
35 Precision 32
25 Ease of use 65
40 Capability 48

MPCNC Primo (Mostly Printed CNC)

Pros

  • Extremely low cost with 3D printed parts
  • Customizable work area size
  • Active community and thorough documentation
  • Can be configured as CNC router, laser cutter, or pen plotter
  • Great educational project for learning CNC mechanics

Cons

  • Print the plastic parts yourself or buy a printed-parts set
  • Rigidity is limited by conduit tube frame
  • Longer tubes and greater Z height reduce rigidity; size the build for the work
  • Requires fabrication, assembly, wiring and calibration; build time varies
  • Aluminum is possible with an appropriate build and setup; larger work areas reduce rigidity

OpenBuilds LEAD 1515 CNC Router

Pros

  • 1170 x 1250mm working area on a 1500mm square frame
  • Open-source design allows extensive customization
  • OpenBuilds CONTROL software is free and excellent
  • Massive community with years of modifications and improvements documented
  • BlackBox and OpenBuilds CONTROL provide a documented controller setup path

Cons

  • The large frame needs a flat, supported base and careful assembly
  • V-wheels need correct preload, clean running surfaces and periodic checks
  • Lead-screw alignment and tension need care across the long axes
  • Router not included and needs to be purchased separately
  • Requires a very large, flat work surface

Verdict

OpenBuilds LEAD 1515 CNC Router wins this comparison with 6 categories to 4.

It scores 60/100 overall versus 56/100, winning 6 out of 10 comparison categories.

Where to Buy

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

MPCNC Primo (Mostly Printed CNC)

$233

OpenBuilds LEAD 1515 CNC Router

$1100

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Frequently Asked Questions

What is the difference between MPCNC Primo (Mostly Printed CNC) and OpenBuilds LEAD 1515 CNC Router?

The MPCNC Primo (Mostly Printed CNC) ($233) features a 660W spindle with a 600×600mm work area and a 3D printed parts + EMT conduit/stainless steel tubing frame. The OpenBuilds LEAD 1515 CNC Router ($1,100) features a 710W spindle with a 1170×1250mm work area and a V-Slot aluminum extrusion with V-wheel guidance and tensioned lead-screw drives frame. Overall, the OpenBuilds LEAD 1515 CNC Router wins more comparison categories.

Which is better value for money — MPCNC Primo (Mostly Printed CNC) or OpenBuilds LEAD 1515 CNC Router?

The MPCNC Primo (Mostly Printed CNC) is $867 cheaper at $233 vs $1,100. Our value scores rate the MPCNC Primo (Mostly Printed CNC) higher at 92/100.

Which router is easier to set up and use?

Based on our ease-of-use benchmarks, the OpenBuilds LEAD 1515 CNC Router scores higher (65/100 vs 25/100). Both support Repetier-Host, CNCjs, Estlcam among other software options.

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