Block Patterns:McCunn:Sleeve

Block Patterns : McCunn : Sleeve



= Setup =

Book
These instructions are based on the instructions and method from the book How to Make Sewing Patterns by Don McCunn (1977 revised edition) ISBN 0-932538-00-2. This book has been updated and may be purchased from Amazon: https://www.amazon.com/How-Make-Sewing-Patterns-second/dp/0932538215.

The instructions for drafting this sleeve block may be found on pages 71-75 in the 1977 revised edition or pages 79-82 in the 2016 second edition.

Units
The McCunn method uses inches. Select 'inches' as the unit when you create your McCunn block pattern file in Seamly2D. If your measurement file is in centimeters, Seamly2D will automatically make the conversion to inches.

Measurements
The following Seamly2D measurements are required to create the McCunn sleeve block. The shoulder_to_elbow measurement is used to place the elbow dart to shape the sleeve. Although the book describes adding a dart at the elbow, the elbow dart will be omitted from this tutorial because it does not add to the user's ability to learn to use the Seamly2D tools.

Variables
Wearing ease for the Bicepsline is three inches (3"), but this amount can be generalized to 20% of arm_upper_circ. Create the BicepsEase variable in the Variables/Increments Table dialog with formula=(arm_upper_circ*0.20). This variable can be used in formulas as #BicepsEase



= Draw =

The letter 'A' is the prefix for sleeve points in this tutorial. When you create the sleeve pattern piece in Seamly2D, it may be assigned a different prefix letter.

Construction Lines
Create construction lines as in Figure 1.


 * 1) Point A: Add the Sleeve pattern piece in Seamly2D 'Draw mode' with the New Pattern Piece icon and name it Sleeve.
 * 2) Point A1: Create the vertical Centerline with the Point from distance and angle tool, length=arm_shoulder_tip_to_wrist_bent, angle=170.
 * 3) Point A2: Mark the Bicepsline with the Point along line tool, 1st point=A1, 2nd point=A, length=arm_shoulder_to_foldline_f
 * 4) Point A3: Create the front Bicepsline at a right angle to the Centerline with the Point from Perpendicular tool, 1st point=A2, 2nd point=A, length=(arm_upper_circ + #BicepsEase)/2
 * 5) Point A4: Create the back Bicepsline at a right angle to the Centerline with the Point from Perpendicular tool, 1st point=A2, 2nd point=A1, length=(arm_upper_circ + #BicepsEase)/2
 * 6) Point A5: Create the front Wristline at a right angle to the Centerline with the Point from Perpendicular tool, 1st point=A1, 2nd point=A, length=(hand_palm_circ/2)
 * 7) Point A6: Create the back Wristline at a right angle to the Centerline with the Point from Perpendicular tool, 1st point=A1, 2nd point=A, length=(hand_palm_circ/2), and reverse the line's angle by clicking on the left-center blue arrow to add 180 degrees.
 * 8) Line Line_C_C3: Draw a dashed line from point C to point C3 with the Line tool, 1st point=C, 2nd point=C3
 * 9) Line Line_C_C4: Draw a dashed line from point C to point C3 with the Line tool, 1st point=C, 2nd point=C4

Sleevecap
THIS SECTION IS UNDER CONSTRUCTION

Elbow Dart
THIS SECTION IS UNDER CONSTRUCTION

Wrist
THIS SECTION IS UNDER CONSTRUCTION



= Details = THIS SECTION IS UNDER CONSTRUCTION



= Layout = THIS SECTION IS UNDER CONSTRUCTION

 = Print = THIS SECTION IS UNDER CONSTRUCTION