Machine planning

Retrofit inventory

Identify what the machine already has before deciding what to replace.

RuntimeCurrent runtime plus a validated interface

FirmwareDepends on retained drives and feedback

HardwareInterface selection follows the inventory

A good retrofit starts with the machine, not a shopping list. Record the original hardware and its electrical interfaces before choosing a breakout board.

Record for each axis

Motor type and nameplate information
Drive or amplifier model
Command input: step/direction, analog velocity or torque, fieldbus, or unknown
Encoder type, voltage, signal format, and where its feedback closes
Brake, enable, fault, and ready signals
Travel limits, home sensors, gearing, and screw pitch

Also inventory spindle control, tool changer, coolant, lubrication, safety chain, operator controls, and every existing I/O voltage.

The Bridgeport EZ Path 1 is a target example: retain its servos, amplifiers, and encoders when a validated JetFlight interface can use them. That target does not establish universal compatibility. If the command or feedback interface is unknown, the build guide will stop at an architecture outline instead of recommending hardware.

Reviewed 2026-11-06. Confirm the hardware catalog and current published release before connecting a machine.