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Modulus AR4 Mk3 Full Build Series

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Workshop series documenting a complete AR4 Mk3 mechanical build throug

Built by Modulus Manufacturing

1

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Modulus AR4 Mk3 Full Build Series

About my build

Modulus Manufacturing filmed a multi-episode AR4 Mk3 build in a real shop environment, unboxing the mechanical kit, assembling joints, printing helpers like the 105° template, completing the mechanical stack in Episode 12, then finishing the wiring harness in Episode 13. It is one of the clearest community walkthroughs of taking an AR4 from parts to a moving arm, with practical tips for bearings, washers, and shop fixtures. Strong showcase for makers following a kit-style Mk3 path.

Workflow / process

Unbox the mechanical kit, assemble the joints and stack, print and use the 105 degree template,

Primary use cases

  • DIY Learning Projects

Software used

  • AR4 Python Controller

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