Engineering the AltMill 4x8 ❘ Ep 3: Swing Arm & Y-Gantry Plate Machining @SienciLabs
Engineering the AltMill 4x8 ❘ Ep 3: Swing Arm & Y-Gantry Plate Machining  @SienciLabs
Uploaded September 2025 | Updated September 2026, 2 weeks ago
Ben, one of our mechanical engineers, is the lead on the upcoming AltMill 4x8. In a series of episodic #bts videos, he shows the step-by-step prototyping process leading up to its release this fall.

Episode 3
Progress is chugging along and a bigger, beefier y-gantry plates gets machined but causes a little hiccup that stumps Ben when he tests them on the rack and rails.

Engineering the AltMill 4x8 Series
Throughout the series Ben will explain the engineering methodologies used and insights gathered that will ultimately shape the final design of the AltMill 4x8. You'll get an up close and personal, inside scoop of engineering shop life at Sienci Labs. The AltMill 4x8 is our most ambitious project yet, and is expected to go on pre-sale fall 2025. Watch for more videos and company announcements over the next few weeks.

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Engineering the AltMill 4x8 ❘ Ep 3: Swing Arm & Y-Gantry Plate Machining

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