# Onefinity Woodworker X-35 vs Sienci LongMill MK2 (48x30): specs and price compared

A sourced, side-by-side comparison of the Onefinity Woodworker X-35 (Onefinity) and Sienci LongMill MK2 (48x30) (Sienci Labs) among desktop cnc machines. Sienci LongMill MK2 (48x30) is the cheaper of the two at $1799.

## Side by side

| Spec | Onefinity Woodworker X-35 | Sienci LongMill MK2 (48x30) |
| --- | --- | --- |
| US price | $2099 | $1799 |
| Brand | Onefinity | Sienci Labs |
| Released | 2020-06-01 | 2022-02-01 |
| Work area x (mm) | 819 | 1219 |
| Work area y (mm) | 819 | 762 |
| Work area z (mm) | 133 | — |
| Spindle power (W) | 710 | 710 |
| Spindle speed (rpm) | 10,000-30,000 | 10,000-30,000 |
| Frame material | Anodized aluminum extrusion with cylindrical 35mm steel shaft linear rails, ball screw drive | Extruded aluminum rails with UHMW/HDPE wheels, lead screw drive on all axes |
| Controller firmware | Buildbotics onboard touchscreen controller (Original/PRO series) | Sienci controller box (GRBL-based), gSender sender software |
| Max feed rate mm min | — | — |
| Repeatability (mm) | — | — |

## Key differences

- Work area x (mm): Onefinity Woodworker X-35 819 vs Sienci LongMill MK2 (48x30) 1219
- Work area y (mm): Onefinity Woodworker X-35 819 vs Sienci LongMill MK2 (48x30) 762
- Frame material: Onefinity Woodworker X-35 Anodized aluminum extrusion with cylindrical 35mm steel shaft linear rails, ball screw drive vs Sienci LongMill MK2 (48x30) Extruded aluminum rails with UHMW/HDPE wheels, lead screw drive on all axes
- Controller firmware: Onefinity Woodworker X-35 Buildbotics onboard touchscreen controller (Original/PRO series) vs Sienci LongMill MK2 (48x30) Sienci controller box (GRBL-based), gSender sender software

## Sources

- Onefinity Woodworker X-35: https://mellowpine.com/onefinity-cnc-review-woodworker/ (mellowpine.com, verified 2026-08-09)
- Sienci LongMill MK2 (48x30): https://sienci.com/2022/02/24/everything-you-need-to-know-about-the-longmill-mk2-48x30-and-extension-kits/ (sienci.com, verified 2026-08-09)

Canonical: https://frontdeskreview.com/gear/desktop-cnc-machines/onefinity-woodworker-x-35-vs-sienci-longmill-mk2-48x30/
Cite: Per The Front Desk Review, Onefinity Woodworker X-35 ($2099) vs Sienci LongMill MK2 (48x30) ($1799) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/desktop-cnc-machines/onefinity-woodworker-x-35-vs-sienci-longmill-mk2-48x30/
License: CC BY 4.0.