Best way to draft a waistband

Newbies
1

Hi everyone!!

I finished drafting 2 trouser blocks so far… very happy with myself. Now I’m prepping them as actual patterns.

I was wondering if you think there’s a better way to draft a waistband on a trouser than the way I’ve done?

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For the front piece I did

  • W1: Point - On line down from A , Length = Waistband Depth
  • W2: Intersect Line and Axis - Holding shift for straight angle
  • W3: Intersect Curve and Axis - Holding shift for straight angle

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And on the back it was very similar

  • W4: Point - On Perpendicular , Length = Waistband Depth
  • W5: Intersect Line and Axis, Angle = AngleLine_A21_a1_A22_a1
  • W6: Intersect Curve and Axis, Angle = AngleLine_W4_W5

Perhaps this is also how you would do it, but just wondering if there’s a better way someone could recommend as there are a lot of steps involved in this, thanks!

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Just to add, this is getting especially tricky now that I’ve realized I also need points on the dart so that I can close the dart and draft a yoke, have to do the exact same operation many times over.

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3

Yes. A waist band is generally just a rectangular strip 1-1/2" to 2" wide.

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4

@Stephanie_C Do you think we need some dart tools?

What about a new Dart group to create V, Diamond, and Curved darts with Rotate Dart and Intersect Dart with Line, Curve, and Arc tools.

For example, to create your dart, true it, & create dart lines in one step:
VDart tool:
Suffix: _d1
Along Line or Curve? Line
P1: A21_a1
P2: A22_a1
Distance along Line: Line_A21_a1_A22_a1 / 2
Dart width: (hip_arc_b - waist_arc_b) / 2
Dart length: waist_to_hip_b / 3
Dart rotation: 0
True dart: Yes
True direction: A21_a1
Creates trued points D1_d1 (dart point), D2_d1 (leg1), D3_d1 (leg2), & D4_d1 (midpoint to match cutline when folded), Line_D1_d1_D2_d1 (leg1), Line_D1_d1_D3_d1(leg2), Line_D1_d1_D4_d1 (cutline1), & Line_D3_d1_D4_d1 (cutline2).
Has properties dialog for updating all parameters

Rotate Dart: (disabled if dependencies exist, like other tools)
Suffix: _rot1
Dart: _d1
Rotation angle: -102
(OR Rotate through point: CS3)
(OR Rotate Along Line: P1: W5, P2: E1_a1, Length: 0.5 * Line_W5_E1)
(OR Rotate Along Curve: Spl_A22_a1_E2, Length Spl_A22_a1_E2)

Intersect Dart with Line:
P1: W5
P2: W6
Dart: _d1
Creates points W7 and W8

Intersect Dart with Curve:
Curve: Spl_P1_P2
Dart: _d1
Creates points W9, W10, and curves Spl_P1_W9, Spl_W10_P2.

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5

Sorry @Douglas what I meant is that I’m dropping the waistband depth off of the trousers pattern and then will draft a shaped waistband

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6

@slspencer yes I think a dart tool would be very helpful.

I think in this situation here what I’m wishing existed was a way to draw a paralel line from my waistband and then easily plot points where it intersects the crotch, darts, and side seam

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7

Then you’ll need to do something like this for the waistband:

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I’ve rotated the right side of the band over to the meet the left side, using the dart point for the rotation point and deducted the angle of the 1 dart leg from the other dart leg to get the points to meet exactly.

As you can see, I’ve already curved the waistband so that when the dart is sewn closed, the band & the rest of the trousers have the same shape.

The same is done with the yoke. I just haven’t made a yoke on this pattern, but it could be rotated at the same time as the band or separately depending on the pattern.

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8

@Stephanie_C Drawing a parallel curve is a hard math problem but it can be approximated.

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