Cameron Opti-Rip 415A-M1, Manual

Page: 52 / 76

52
OPERATION
OPERA
TION
#415-R1
8-15-18 - JR
Getting the Most with your Lumber with Opti-Rip
Opti-Rip offers the option of optimizing lumber for either board yield or board value. When
the values of the different rip widths in a saw stack are the same, Opti-Rip calculates the
rip solution exclusively for maximum dimensional yield and the minimum amount of waste.
This mode of operation is appropriate when the ripped stock is going into a common
product such as glued panels or when there is no differential in the value of the stock used
to produce the finished product. Opti-Rip can also optimize lumber for the most valuable
(or profitable) rip solution. In this mode the different values are assigned to their respective
rip widths and Opti-Rip will compute the combination of rips which will result in the highest
dollar return and not the highest yield. This mode of operation is appropriate when the
ripped stock is going into different products, having different values, such as moldings,
where the wider widths command a higher price.
Just as Opti-Rip will emphasize the most valuable ripping, it will de-emphasize the least
valuable. When the quantity of a rip width is achieved during a production run and it's not
appropriate to change the saw stack at that time, the value of that satisfied rip width can be
reduced to reduce the frequency that rip will be included in the calculated rip solution.
It is important that the routine used by the operator while gang ripping lumber takes full
advantage of the flexibility and features offered by Opti-Rip. By combining the computer's
ripping solutions and laser line guidance with the operators' insight of the quality
requirements and defect limitations of the ripped stock being produced, the primary goal to
recover the maximum amount of clear ripped stock with minimum waste can be achieved.
Opti-Rip's multiple laser line display of the complete rip pattern of the calculated solution
provides the operator with the ability to see where each cut will be made in relation to the
edges and defects present in the board being ripped. The operator can then position the
board to best isolate the defects in the minimum amount of rips and avoid splitting a defect
so as to require the subsequent cross cutting of two ripped pieces.
Once the board is measured, the first rip solution is projected for operator examination.
There are two reasons why the originally calculated rip solution might be unacceptable:
1) The first concerns the relationship between the rip solution and the dimensional
characteristics of the board. For instance, should either or both of the laser lines
indicating the outer most saw cuts miss the edge of a board due to side bend or
board taper, or if excessive wane would impair the quality of the outside rips, then
the next rip solution should be calculated based on the next narrower combination
of saws. For this condition the use of the "Deduct" operator input switch is most
desirable as it will calculate the next narrower rip solution by subtracting the value
assigned to the "Deduct Function" from the proposed rip solution to determine the
next most efficient combination.