Koch v1.1

Koch v1.1 is an improved version of Alexander Koch's low-cost robot arm, refined for easier assembly with no soldering required. It is a teleoperated leader/follower system built around Dynamixel XL-series servos and integrates with the LeRobot library. Motari renders both pinned STEP arm assemblies by parsing their external-reference occurrence transforms and importing the referenced STEP part files. The upstream README publishes separate leader and follower BOM tables with a combined US source total of $477; Motari has not checkout-reconciled current vendor pricing.

What you get

• A standardized, machine-readable robot schema derived from the source repo.
• A primary assembly 3D asset is available from hardware/follower/STEP/Follower_Arm.STEP.
• Source-backed bill-of-materials evidence is linked with per-part provenance where available. Prices marked estimated are not yet verified against a vendor.
• A transparent reproducibility score so buildability is a sortable, first-class property.
• Cross-links to the source repo, datasets, models, and forks.

Source

Canonical source: jess-moss/koch-v1-1. Original files stay intact and separately licensed under Apache-2.0; Motari adds a separate, adjacent metadata layer.