Freeze the process
Save the final file, tool or material settings, fixture position and inspection notes. If the second run starts from memory, the process is not ready for a customer deadline.
Measure the whole job
Record preparation, machine time, cleanup, rejects, finishing and packing. The slowest step may sit nowhere near the machine.
Scale with evidence
Run a short paid-size batch before buying a second machine. The result will show whether capacity, setup or demand is the actual constraint.