Occurs when optimising a run if a board limit is set for boards and the quantity of one of the boards is relatively low
A board limit (in the range 1-3) specifies that the board sizes are used in proportion, for example, 1:1. However if the quantities of one or the board types is relatively low the ratio cannot be maintained.
Check the board library and/or board list data and re-try.
The following part and board data illustrates this problem.
Part Material Size Qty
PART/1 CHIP/01 1020.0 x 950.0 100
PART/2 CHIP/01 900.0 x 1200.0 150
Board (CHIP/01) Size Qty Limit
BOARD1 2440.0 x 1220.0 500 1
BOARD2 1850.0 x 1220.0 10 1
In this case the quantity of BOARD2 is too low to maintain the ratio.
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