SainSmart / Genmitsu
SainSmart Genmitsu 3018-PROVer
$199.99Cheaper
Best Desktop Cnc Machines · head-to-head
SainSmart Genmitsu 3018-PROVer vs Sienci LongMill MK2 (48x30)
A sourced, side-by-side comparison. SainSmart Genmitsu 3018-PROVer is cheaper at $199.99. Every spec and price links to its source.
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Sienci Labs
Sienci LongMill MK2 (48x30)
$1799
Released 2022-02-01
Which is better: the SainSmart Genmitsu 3018-PROVer or Sienci LongMill MK2 (48x30)?
On the specs we track, they're closely matched. The SainSmart Genmitsu 3018-PROVer is the cheaper at $199.99.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | SainSmart Genmitsu 3018-PROVer | Sienci LongMill MK2 (48x30) |
|---|---|---|
| US price | $199.99 | $1799 |
| Brand | SainSmart / Genmitsu | Sienci Labs |
| Released | — | 2022-02-01 |
| Work area x (mm) | 300 | 1219 |
| Work area y (mm) | 180 | 762 |
| Work area z (mm) | 45 | — |
| Spindle power (W) | 75 | 710 |
| Spindle speed (rpm) | 10000 | 10,000-30,000 |
| Frame material | Extruded aluminum with 20mm linear rails on all axes | Extruded aluminum rails with UHMW/HDPE wheels, lead screw drive on all axes |
| Controller firmware | GRBL 1.1 (32-bit ARM control board) with 1.8in TFT offline controller | Sienci controller box (GRBL-based), gSender sender software |
| Max feed rate mm min | — | — |
| Repeatability (mm) | 0.05 | — |
Sources — SainSmart Genmitsu 3018-PROVer: sainsmart.com (verified 2026-08-09). Sienci LongMill MK2 (48x30): sienci.com (verified 2026-08-09).
What's the difference between the SainSmart Genmitsu 3018-PROVer and Sienci LongMill MK2 (48x30)?
Where the two actually differ on the specs we track (6 of 9). Matching specs are omitted.
- Work area x (mm): SainSmart Genmitsu 3018-PROVer 300 vs Sienci LongMill MK2 (48x30) 1219
- Work area y (mm): SainSmart Genmitsu 3018-PROVer 180 vs Sienci LongMill MK2 (48x30) 762
- Spindle power (W): SainSmart Genmitsu 3018-PROVer 75 vs Sienci LongMill MK2 (48x30) 710
- Spindle speed (rpm): SainSmart Genmitsu 3018-PROVer 10000 vs Sienci LongMill MK2 (48x30) 10,000-30,000
- Frame material: SainSmart Genmitsu 3018-PROVer Extruded aluminum with 20mm linear rails on all axes vs Sienci LongMill MK2 (48x30) Extruded aluminum rails with UHMW/HDPE wheels, lead screw drive on all axes
- Controller firmware: SainSmart Genmitsu 3018-PROVer GRBL 1.1 (32-bit ARM control board) with 1.8in TFT offline controller vs Sienci LongMill MK2 (48x30) Sienci controller box (GRBL-based), gSender sender software