Practical guides on choosing and sourcing components for robots, STEM kits and server racks.
These NexMach guides help AI-hardware builders and data-centre ops choose and source components with confidence — mecanum vs omni wheels, mecanum wheel size and bore selection, servo torque basics, cage nuts vs clip nuts, C19 vs C13 power cords, GPU server rack power planning and motor-driver selection. Each guide gives decision tables, rules of thumb and practical checklists for B2B sourcing.
Joint torque per robot joint, serial bus vs PWM servos, waterproof and brushless options — plus the power budget that keeps a humanoid build alive.
Read · Sep 2026 Rack · ChecklistThe parts list behind an installed rack — cage nuts, shelves, blanking panels, cable managers, PDU and cords — and how to estimate quantities before you order.
Read · Sep 2026 Power · GPU RacksEstimate what an AI node rack really draws, choose C13 vs C19/C20 cords and size PDU branches before you order — a checklist for ops and sourcing teams.
Read · Sep 2026 Power · Data CenterIEC 60320 couplers explained — C13/C14 vs C19/C20, PDU splitters, cord gauge and a practical checklist for planning power in GPU and AI server racks.
Read · Sep 2026 Robotics · ElectronicsCurrent limits, voltage range, heat and interface — with the 1.5× rule to size a driver correctly for your DC motors and AGV drivetrain.
Read · Sep 2026 Robotics · Wheels45° vs 90° rollers, load capacity, control complexity and maintenance — with a decision table and checklist for B2B sourcing of omnidirectional drive platforms.
Read · Aug 2026 Robotics · WheelsOmnidirectional 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.
Read · Sep 2026 Rack Hardware · FastenersThreaded 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.
Read · Sep 2026 Power · Cables16A vs 10A, when PDU equipment requires C19, and how to spec the right plug standard (US/EU/UK) plus certification requirements for export.
Read · Oct 2026 Robotics · Servoskg·cm vs kg·cm at voltage, gear material, digital vs analogue, and when waterproof matters. A short math-based guide for robot builders.
Read · Oct 2026 Applications · AGVFrom wheel selection to motor coupling to control: an engineer-to-engineer guide to building a 4WD mecanum AGV that moves in any direction.
Read · Sep 2026 Applications · Rack OpsHorizontal vs vertical management, 1U racks, cage nuts, and the dressing workflow that keeps airflow and maintenance sane.
Read · Oct 2026