# BobsCNC Evolution 4 (E4) vs OpenBuilds LEAD CNC 1010: specs and price compared

A sourced, side-by-side comparison of the BobsCNC Evolution 4 (E4) (BobsCNC) and OpenBuilds LEAD CNC 1010 (OpenBuilds) among desktop cnc machines.

## Side by side

| Spec | BobsCNC Evolution 4 (E4) | OpenBuilds LEAD CNC 1010 |
| --- | --- | --- |
| US price | not published | $1665.97 |
| Brand | BobsCNC | OpenBuilds |
| Work area x (mm) | 610 | 730 |
| Work area y (mm) | 610 | 810 |
| Work area z (mm) | 84 | 102 |
| Spindle power (W) | — | — |
| Spindle speed (rpm) | 10,000-30,000 | — |
| Frame material | Laser-cut Baltic birch plywood | C-Beam aluminum extrusion with dual XLarge C-Beam gantry plates, Xtreme solid V-wheels |
| Controller firmware | Arduino Uno with GRBL 1.1 firmware, custom stepper driver shield | OpenBuilds BlackBox Motion Control System (ATmega328p, GRBL 1.1) |
| Max feed rate mm min | 5080 | — |
| Repeatability (mm) | — | 0.08 |

## Key differences

- Work area x (mm): BobsCNC Evolution 4 (E4) 610 vs OpenBuilds LEAD CNC 1010 730
- Work area y (mm): BobsCNC Evolution 4 (E4) 610 vs OpenBuilds LEAD CNC 1010 810
- Work area z (mm): BobsCNC Evolution 4 (E4) 84 vs OpenBuilds LEAD CNC 1010 102
- Frame material: BobsCNC Evolution 4 (E4) Laser-cut Baltic birch plywood vs OpenBuilds LEAD CNC 1010 C-Beam aluminum extrusion with dual XLarge C-Beam gantry plates, Xtreme solid V-wheels
- Controller firmware: BobsCNC Evolution 4 (E4) Arduino Uno with GRBL 1.1 firmware, custom stepper driver shield vs OpenBuilds LEAD CNC 1010 OpenBuilds BlackBox Motion Control System (ATmega328p, GRBL 1.1)

## Sources

- BobsCNC Evolution 4 (E4): https://mellowpine.com/bobscnc-evolution-4-cnc-router-review/ (mellowpine.com, verified 2026-08-09)
- OpenBuilds LEAD CNC 1010: https://www.makertechstore.com/products/openbuilds-lead-cnc-1010-40-x-41 (makertechstore.com, verified 2026-08-09)

Canonical: https://frontdeskreview.com/gear/desktop-cnc-machines/bobscnc-evolution-4-vs-openbuilds-lead-1010/
Cite: Per The Front Desk Review, BobsCNC Evolution 4 (E4) (not published) vs OpenBuilds LEAD CNC 1010 ($1665.97) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/desktop-cnc-machines/bobscnc-evolution-4-vs-openbuilds-lead-1010/
License: CC BY 4.0.