

Our Pick: OpenBuilds LEAD 1515 CNC Router
It scores 60/100 overall versus 56/100, winning 6 out of 10 comparison categories.
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.
Overall
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)
$233OpenBuilds LEAD 1515 CNC Router
$1100As an Amazon Associate I earn from qualifying purchases. Affiliate links may earn a commission at no extra cost.
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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