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.