Uploaded July 2026 | Updated September 2026, 3 weeks ago

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Daniel, our lead engineer, demonstrates the extreme accuracy in which a large format CNC can perform - there are a lot of misconceptions about the accuracy of a rack and pinion motor system, and this video showcases the precision and repeatability of a 4x8 CNC on a tiny, tiny scale...it's a little 'nuts' on how accurate it can be.

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Learn step by step how we engineered the AltMill 4x8:
- Ep 1: Rack & Pinion Rigidity: youtu.be/VmfC0uGSgT4
- Ep 2: Table Frame Construction: youtu.be/r8hdOrUiip4
- Ep 3: Swing Arm & Y-Gantry Plate Machining: youtu.be/tZB63bipxgw
- Ep 4: Final Assembly & First Carve: youtu.be/xQxpctAImdA
- Ep 5: Rack Wear Testing: youtu.be/QyGrcE5Qiro

Buy an AltMill 4x8: sienci.com/product/altmill-4x8

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