Uploaded October 2025 | Updated September 2026, 1 week ago

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Designed for rigidity, accuracy and reliability, the AltMill 4x8 is a large format, game-changing hobby CNC machine.

Our engineers Ben and Daniel break down the science, design and performance behind the 4x8, giving you insight on the engineering methodologies and specifications of our biggest endeavour yet.

***Pre-order Now Open***
bit.ly/3KX6kbS
*Spindle and gControl sold separately. LEDs sold separately.*

Quick Highlights:
1) 104" Y-Axis Travel
2) 50" X-Axis Travel
3) 8" Z-Axis Clearance
4) High-Torque Closed-Loop Stepper Motors
5) 1,000 IPM Cutting Speed
6) Rack and Pinion with Gearbox Reduction on Y-Axis
7) Precision Ball Screws on X & Z Axes
8) SLB-Ext 32-bit Controller with grblHAL Firmware
9) 120VAC, Single Phase 4A Power
10) $7,490 USD // $10,390 CAD

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FAQs ►
resources.sienci.com/view/am-4x8-specifications
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Creative tools ►
AltMill 4x8: bit.ly/3KX6kbS
gControl Panel Computer: bit.ly/43iIMo0
FREE gSender CNC interface software: bit.ly/47iDpX9
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Subscribe to Sienci Labs YouTube Channel
youtube.com/@SienciLabs

Join our Facebook Community group
facebook.com/groups/mill.one




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