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    Calculation of folded skirt
    Main parameters of skirt         
    Waist circumference (cm)     
Illustration 
 
    Front length (cm)         
Side length (the finished underskirt with petticoat measured) (cm)
Make a mock-up at 1:2 scale before cutting!!! Check the depth of folds on petticoat and overskirt, the position and length of side. Make alterations for final calculation and cutting! 
Back seam length with train (cm)
Fabric width (cm) 
Width of ready belt (cm) 
    Calculation     
    Belt length with seam allowance for cutting (cm)     
    Belt width with seam allowance for cutting (cm)     
  Calculation of front gores 
  Main parameters of skirt      Calculations for gore drafting (all figures in cm) 
  Waist semi-circumference (cm)        top  
  Front length (cm)         
  Side length (the finished underskirt measured) (cm)      left (side seam)  Front gore #1 
Front bottom length (without folds) (cm) 
  Calculation     
Illustration 1
bottom   
Number of front gores
Illustration 2
 
Number of folds
   
Illustration 3
   
 
Upper length of front gore without folds (cm) 
   
Illustration 4
 
  Desired fold depth on waist (cm)     
Illustration 5
 
Bottom length of front gore without folds (cm) 
Desired fold depth in the bottom (cm) 
Deflection in upper center (cm) 
Deflection in bottom center (cm) 
Upper length for cutting (cm) 
Bottom length for cutting (cm) 
Bottom length with folds (cm) 
Upper length of side gores for cutting!!!
Bottom length of side gores for cutting!!!
             
    Calculation of skirt back (train) with fold (half-circle)   
    Main parameters of skirt       
    Waist semi-circumference (cm) 
Illustration 
   
    Side length (cm)       
Back seam length with train (cm)
Total desired number of back folds 
Distance between folds
Desired number of waist folds (cm) 
    Fabric width (cm)       
    Calculation       
    Radius  R1 (cm)       
    Radius R2 (cm)    
    Radius along back (R4) (cm)      
    Auxuliary Radius along back (R5) (cm)       
    Length of waist cut with folds (cm)       
           
Back bottom length (m) 
Fabric consumtion for skirt back with fabric width of 150 cm (m)