MillRight CNC Mega V 2 Full Sheet vs Sienci Labs AltMill 4x8
Two desktop CNC routers side by side, using each maker's own specs, checked 4 November 2026 and 1 November 2026. We haven't tested either one, so this compares what the makers publish, not how well they cut.
Photo: MillRight CNCMillRight CNC Mega V 2 Full Sheet
$7,199.00
Where they differ
- MillRight CNC Mega V 2 Full Sheet is listed $3,191 lower ($7,199.00 against $10,390.00*).
- Sienci Labs AltMill 4x8 has the larger published X × Y work area: 1265 × 2640 mm against 2464 × 1270 mm (1.1× the area).
- Sienci Labs AltMill 4x8 lists more Z: 210 mm against 133 mm.
- Published footprints: 1,600 × 2,667 mm against 1,676 × 2,896 mm.
Published specs
| MillRight CNC Mega V 2 Full Sheet | Sienci Labs AltMill 4x8 | |
|---|---|---|
| Price | $7,199.00 | $10,390.00* |
| Work area | 2464 × 1270 mm | 1265 × 2640 mm |
| Z | 133 mm (5.2") | 210 mm (8.3") |
| Spindle or router | Not included; DeWalt router mount (+$50) or 1.5 kW / 2.2 kW spindle options | Not included |
| Drive | Steel rack and pinion on X and Y; screw drive on Z | Rack and pinion on Y; ballscrews on X and Z |
| Linear guides | Linear profile rails on every axis | 15 mm linear rails |
| Controller and motors | GRBL by default (Masso G3 Touch +$2,200). Closed-loop motors. | SLB-Ext, grblHAL. Closed-loop NEMA 23 steppers. |
| Software | CAD/CAM not included | gSender |
| Footprint | 63" x 105" | About 66" x 114" |
| Weight | Not published | 400 lb assembled (see spec conflicts) |
| Warranty | Not published | 365 days |
| Spec conflicts | 1 | 3 |
| Source | Maker’s page ↗ | Maker’s page ↗ |
Work areas to scale
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Why this pair
Pairs are picked by a rule: machines in the same size class and within about 60% of each other's price, plus each machine's nearest sibling from the same maker. No search or keyword data was used. All 61 pairs.