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Koch v1.1 vs PAROL6

Cost, parts and difficulty side by side.

Koch v1.1PAROL6
Cost$477 to $560$750 to $1,150
Difficultyintermediateadvanced
Parts1362
3D printingyesyes
Kits available14
Made byJess Moss (after Alexander Koch's low-cost robot)Source Robotics (Petar Crnjak)
Full listKoch v1.1 parts listPAROL6 parts list

Koch v1.1

Dynamixel-based leader and follower arm pair, the first LeRobot reference arm; pricier than SO-101 but uses ROBOTIS servos.

PAROL6

3D printed six axis desktop arm with industrial style belts, planetary gearboxes and open Python control software.

The short answer

Koch v1.1 costs less to start: about $477 against $750 in parts. Koch v1.1 has the shorter parts list (13 lines against 62).

Motors and servos

Koch v1.1

  • 6 x Dynamixel XL330-M077-T
  • 2 x Dynamixel XL430-W250-T
  • 4 x Dynamixel XL330-M288-T
  • 2 x ROBOTIS FPX330-H101 hinge frame and idler set (4 pcs)

PAROL6

  • 1 x StepperOnline 17HS08-1004S NEMA 17 stepper
  • 3 x StepperOnline 17HS16-2004S1 NEMA 17 stepper
  • 2 x StepperOnline 17HS24-2104S NEMA 17 stepper