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You can select different gripper orientations at pickup to have better reach for the box on the palletIn order to get better reach or performance, the program can automatically recalculate and use the gripper rotated by +90, -90, 180 degrees at the pickup position. This may be necessary to reach the pallet corners or avoid collision with the base frame.

The allowed rotations can be configured. You can instruct the optimizer to enforce the default orientation, choose between forward and backward, or choose between forward, backward, left, or right. Pally will calculate the best gripper option optimized grip for each box, if enabled.Optimize

Visual representation of the different gripper rotations at pickup

: NONE - 2-WAY - 4-WAYImage Removed

None: 0-deg grip

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Info

Note: the rotations are relative to the default calibrated orientation (forward)

Gripper optimization settings can be selected in Program / Pally / Advanced / Path planning

None: forward (the gripper direction at the calibrated pick position)

2-Way: 0-deg and 180-deg grip forward and backward

4-Way: 0-deg, 90-deg, 180-deg and -90 or 270-deg grip

Warning

27.January 2021: Known BUG - Importing json file with 270 as a value in ā€œgā€œ-variable will give an error. Change the value to -90 for a successful import to Pallet Builder

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0-deg grip (Front)

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180-deg grip (Back)

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-90 or 270 deg. grip (Left)

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90 or -270 deg. grip (Right)

InfoNote: 0-deg grip is the calibrated orientation forward, backward, left, right

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Gripper optimizer can be configured in run-time via the variable rf_grip_rot, which is an array of 5 elements.

  • The first element is the number of allowed rotations n,

  • The next n elements are the allowed rotations in degrees.

Example:

Code Block
rf_grip_rot = [3, 0, -90, 90, 0]

This will tell the optimizer to choose a gripper rotation between forward, left, and right (backward is not allowed)