Robotics & Automation calculator

Robot Path Efficiency Calculator

Split a robot program's cycle into motion and waiting to see whether waits or moves keep it off takt. You need motion, gripper, handshake and dwell seconds from a cycle trace, plus takt.

What this calculator does

  • Share of a robot cycle spent moving, and whether cutting waits or speeding up moves is what makes takt.

Formula used

  • Dwell time = gripper time + handshake wait time + programmed dwell
  • Program cycle time = motion time + dwell time; margin to takt = takt time − cycle time
  • Path efficiency = motion time ÷ program cycle time × 100
  • Path efficiency needed for takt = motion time ÷ takt time × 100

Inputs explained

  • Motion Time per Cycle: Seconds the robot is moving, from the controller trace or simulation.
  • Gripper Time: Grip and release time with the robot stopped, valve to sensor.
  • Handshake Wait Time: Time stopped waiting on machine, conveyor or vision I/O signals.
  • Programmed Dwell: Fixed waits written into the program, such as vacuum settle delays.
  • Takt Time: Seconds allowed per robot cycle: available time ÷ cycles needed.

How to use the result

  • Best suited to cycle time reduction during runoff, deciding between wait cuts and a faster robot.
  • A high path efficiency can hide slow moves; a slow program scores well while missing rate. Handshakes held by a slow machine or conveyor cannot be cut in the robot program alone.

Current U.S. benchmarks

  • Global copper trades at $13,543 per tonne (IMF via FRED, Jul 2026), up 38.6% in a year, and U.S. industrial electricity averages 9.77 cents per kWh. Both feed electrified-hardware unit economics.

Common questions

  • What path efficiency should my robot program reach? The one takt needs, shown as the needed row. There is no universal benchmark: a machine tending cell that waits on the spindle scores lower than a conveyor picker by design. Compare revisions of one program.
  • How do I overlap I/O handshakes with robot motion? Let the program run the next instructions while the robot is still moving. Some robot languages add a concurrent argument to move instructions for this, used when the external equipment needs no synchronization.
  • Why did my cycle get faster but path efficiency drop? Faster moves shrink motion time while waits stay the same, so waiting becomes a bigger share. That is progress: the next seconds are in the waits, and the needed row tells you whether you still need them.
  • Should settle time at stop points count as dwell? Only if the program waits on purpose. Reaching a stop point is part of the move instruction, so its settling counts as motion. A fixed delay after arrival, such as a vacuum settle, is programmed dwell.

Last reviewed 2026-10-01.