Esko ArtiosCAD Administrator Guide - Esko Help Center
Esko ArtiosCAD Administrator Guide - Esko Help Center Esko ArtiosCAD Administrator Guide - Esko Help Center
6 Esko ArtiosCAD 222 Function Description RULELEN(“TYPE 2”) Length of creases in the layout. Also supports more general selection such as RULELEN(“TYPE 1,3 RAD ..1/8”) PVAR(varname) Value of prompted variable, e.g. PVAR(NCOLOR) or PVAR(CRW). Actual variable is CCEN.NCOLOR (per sheet) or CCEN.D[i].CRW (per design) or CCEN.P[i].MYVAR (per print item) DESVAR(varname) (Design or item cost center) Value of variable from design, e.g. DESVAR(L) (Sheet cost center) Value of variable from the first design. (If variable does not exist) 0 #NCOLOR Number of colors for the printing press set in the Ink Coverage page. #LBSKG Number of pounds in a kilogram = 0.45359237 #KGSSTON Number of kilograms in a short ton = 907.18474 #KGSLTON Number of kilograms in a long ton = 1016.0469088 #SQMSQFT Number of square meters in a square foot = 0.09290304 #LBSFTG Number of (lbs/1000 sq. ft) in (g/sq. m) = 4.882427636383 Example Folder-Gluer Formula To calculate the speed of a folder-gluer machine, suppose the belts on the machine run at 240,000 inches per hour. The cartons are carried through the folder-gluer side-by-side with a 1/2-inch gap between them. The blank size of a carton is given by the function #MANSIZEX and 1/2 inch is represented by #I/2, so the step distance between cartons is #MANSIZEX+#I/2. Dividing the speed of the belts by the step distance gives a speed (in cartons per hour) of: 240000*#I/(#MANSIZEX+#I/2) However, suppose some cartons are more difficult to fold up and the machine has to run slower for these. Let us introduce a compensation factor in a prompted variable Folder difficulty which has values: 1 = Easy, Full speed 240000 inches/hour 2 = Moderate, Moderate speed 200000 inches/hour 3 = Hard, Slow speed 160000 inches/hour To allow for this, the modified formula uses a step function of the Folder difficulty variable FGD (Folder Gluer Difficulty): STEP(PVAR(FGD),240000,2,200000,3,160000)*#I/(#MANSIZEX+#I/2) To use this, the estimator should enter the “Folder difficulty” for each design along with the number of colors for the job in the Prompted Variables tab in the Quantities and Costs dialog box:
Run Length Calculation Esko ArtiosCAD The costing model used in Esko ArtiosCAD has a list of cost centers in the order that the cartons are processed through the plant. Once the sheet has been processed in the die press, you no longer have sheets, and the remaining cost centers process print items (=cartons). Therefore, the sheet cost centers (printing press and die press) come before all the item cost centers (e.g. windowing, foldergluer, shipping). Between the last sheet cost center (the die press), and the first item cost center, the sheet is divided up into print items depending on the number up of each item. For the run length calculation, each cost center has an attribute of the number of sheets or cartons used in make ready, and a run-time waste percentage. For example, suppose you start with 100000 sheets, and the printing press uses 5000 for make ready, and has a run time waste of 4%, because it periodically goes out of registration. Then the run length of the printing press is 100000-5000 = 95000, but because of the run-time waste the output from the printing press that is available for the next cost center is 96% of this, which equals 91200. For each cost center in the list, the input to this cost center (= make ready + run length) is equal to the output of the previous cost center. When you enter ordered quantities, the calculation starts with the required delivered quantity which is the output from the last cost center, and works backwards, adding the run-time waste and make ready for each cost center, to come up with the number of sheets you need to start with. To illustrate the run length calculation in Intelligent Layout, suppose you have ordered quantities 100000 of A and 200000 of B, and the sheet has 5 up of A and 8 up of B. The first thing we see is that with these proportions, we are going to get a larger overrun of A than of B. Suppose there was no make ready waste. There would be a run length of 12500 giving the required 200000 (100%) of B but 125000 (125%) of A. Therefore, for the run length calculation, we can ignore A with the larger overrun, and calculate the run length needed for B. In our simple example, there are 3 cost centers: 223 6
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6 <strong>Esko</strong> <strong>ArtiosCAD</strong><br />
222<br />
Function Description<br />
RULELEN(“TYPE 2”) Length of creases in the layout. Also supports more general<br />
selection such as RULELEN(“TYPE 1,3 RAD ..1/8”)<br />
PVAR(varname) Value of prompted variable, e.g. PVAR(NCOLOR) or PVAR(CRW).<br />
Actual variable is CCEN.NCOLOR (per sheet) or CCEN.D[i].CRW<br />
(per design) or CCEN.P[i].MYVAR (per print item)<br />
DESVAR(varname) (Design or item cost center) Value of variable from design, e.g.<br />
DESVAR(L)<br />
(Sheet cost center) Value of variable from the first design. (If<br />
variable does not exist) 0<br />
#NCOLOR Number of colors for the printing press set in the Ink Coverage<br />
page.<br />
#LBSKG Number of pounds in a kilogram = 0.45359237<br />
#KGSSTON Number of kilograms in a short ton = 907.18474<br />
#KGSLTON Number of kilograms in a long ton = 1016.0469088<br />
#SQMSQFT Number of square meters in a square foot = 0.09290304<br />
#LBSFTG Number of (lbs/1000 sq. ft) in (g/sq. m) = 4.882427636383<br />
Example Folder-Gluer Formula<br />
To calculate the speed of a folder-gluer machine, suppose the belts on the machine run at 240,000<br />
inches per hour. The cartons are carried through the folder-gluer side-by-side with a 1/2-inch gap<br />
between them. The blank size of a carton is given by the function #MANSIZEX and 1/2 inch is<br />
represented by #I/2, so the step distance between cartons is #MANSIZEX+#I/2. Dividing the speed<br />
of the belts by the step distance gives a speed (in cartons per hour) of:<br />
240000*#I/(#MANSIZEX+#I/2)<br />
However, suppose some cartons are more difficult to fold up and the machine has to run slower for<br />
these. Let us introduce a compensation factor in a prompted variable Folder difficulty which has<br />
values:<br />
1 = Easy, Full speed 240000 inches/hour<br />
2 = Moderate, Moderate speed 200000 inches/hour<br />
3 = Hard, Slow speed 160000 inches/hour<br />
To allow for this, the modified formula uses a step function of the Folder difficulty variable FGD (Folder<br />
Gluer Difficulty):<br />
STEP(PVAR(FGD),240000,2,200000,3,160000)*#I/(#MANSIZEX+#I/2)<br />
To use this, the estimator should enter the “Folder difficulty” for each design along with the number<br />
of colors for the job in the Prompted Variables tab in the Quantities and Costs dialog box:
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