NNEXMACHAI COMPONENT SUPPLY
Sourcing Guides

Buy smarter, build faster.

Practical guides on choosing and sourcing components for robots, STEM kits and server racks.

Robotics · Wheels

How to Choose the Right Mecanum Wheel Size and Bore

Omnidirectional drive explained: wheel diameter vs. payload, bore sizes (12mm hex and friends), roller material trade-offs, and why 100mm is the sweet spot for education robots.

Coming soon · Sep 2026
Rack Hardware · Fasteners

Cage Nuts vs Clip Nuts: What to Use and When

Threaded vs. clip cage nuts, M6 vs. M5, steel vs. zinc — and why a 50-piece kit is the consumable your maintenance team will thank you for.

Coming soon · Sep 2026
Power · Cables

C19 vs C13 Power Cords: Which One Does Your Rack Need?

16A vs 10A, when PDU equipment requires C19, and how to spec the right plug standard (US/EU/UK) plus certification requirements for export.

Coming soon · Oct 2026
Robotics · Servos

Servo Torque 101: Picking the Right Servo for Your Robot Joint

kg·cm vs kg·cm at voltage, gear material, digital vs analogue, and when waterproof matters. A short math-based guide for robot builders.

Coming soon · Oct 2026