SLASHING A PATTERN FOR FLAT PATTERN MANIPULATION
WARNING! IMPORTANT! CUSTOM PATTER MAKER is not a substitute for pattern making knowledge. It is a tool, a parallel to pencil, angles, curves, scissors and paper. You need to already know how to perform flat pattern design in order to be able to use this program. It is important that you know what the steps are that you need to perform to achieve the desired pattern design you are going to be making. You, as the pattern maker, have to make decisions about the process you use. It is wise to plan your process before you begin because the computer does not have the intuitive ability of the human brain. You will need to plan how you are going to get the computer to do the process.
The following instructions are in the form of an instructional tutorial, developed from class teaching. The process they follow include the most efficient methods discovered over the course of 3 years of BETA TEST.
C.P.M. has a Command function named CUT. CUT automatically CUTs a pattern piece into two self contained CLOSEd polygons.
The following outline is included for those who are already familiar with AutoCAD® editing functions.
A QUICK OUTLINE OF CUT AND SPREAD
I. Mark any important geographic points on the pattern, using the BACKGROUND drafting and dimension lines as a guide, with SMLDOT under the MATCHING SYMBOLS MENU.
II. Delete the BACKGROUND lines using DRFT-DEL on the BACKGROUND SUB-MENU under the OPTIONS MENU to avoid future confusion.
III. Using PLINE with SNAPTO sub-commands, create slash lines on pattern piece.
VI. Use CUT to separate the pattern into sections.
V. Make matching point marks with DIAMOND or NOTCH under the MATCHING SYMBOLS MENU across slash lines.
VII. Use COPY to make a second set of DIAMONDs for those lines that will become matching seams.
VIII. For pivoting use ROTATE. Use SNAPTO sub-commands to locate the fulcrum (BASE) point.
IX. Use MOVE for spreading. Use SNAPTO sub-commands for BASE POINT and DISPLACEMENT POINT when accuracy is important.
X. If you are spreading, use GRID as a gauge or use MEASURING TAPE from the SEW MENU.