“X” Back Bikini Top

July 10, 2010 on 10:23 pm | In Bikinis & Bandeaus, Favorite Designs, pattern making | No Comments

My model Alex mentioned that she would like a swimsuit that did not have a strap around the neck. The photos below show what I created. The ties go from rings in the front, across the back to the opposite side, then back to tie at the rib cage level at center back. Once we had the elastic adjusted to her preference, I tied the elastic to the rings on the sides. All she has to do to take this top on and off is to tie and untie it at center back.

Red Velvet Ring Bikini

The top itself is made with velvet Lycra from one of the Fabric Depot Valu-Packs. I used a princess seam for the bikini top for optimum shaping. In this example I used 1/8″ elasticized cord. With the ring design it would be easy to change this to wider straps if so desired. Actually the rings give this particular design a lot of flexibility. The swimsuit rings also came from Fabric Depot.

Changing One Dart to Two

July 3, 2010 on 12:02 am | In Fitting Issues, Pattern Design Guides, pattern making | No Comments

I am working on a design concept for custom-fit bras based on the Bust Sling from my eBook How to Make Custom-Fit Bras. This design lends itself quite naturally to a bra for nursing mothers. A neighbor of mine is about to give birth to her second child. She has graciously agreed to test this concept for a bra. She has indicated that she prefers nursing bras that have foam in the covering portion of the cup.

As I was developing the pattern for the foam for this design I found it was going to have a rather large dart. In the past we have discussed in my group How to Make Sewing Patterns the problems of darts for women with larger cup sizes. They can become quite pointy.

I decided to tackle the problem of changing one dart to two for this particular design. I wasn’t sure how to best approach keeping the shape while changing the dart. I like to advocate the use of poster board to test out pattern shapes. Particularly for the complex curves of bra patterns. The photo below shows the evolution of changing a single dart to two darts.

Steps to create two darts from one.

Here are the steps I followed:

  1. The first photo shows the shape of the pattern for foam with a single dart.
  2. I wanted to spread the distance between the two darts based on the Bust Circle which I describe on page 58 of my book How to Make Sewing Patterns. I opted to spread the darts by 5/8″ to either side of the existing dart. Those are the two pencil lines in the second pattern that are parallel to the sides of the dart.
  3. I taped the single dart in the poster board closed, then cut along the two lines from the step above. I flattened the poster board.
  4. When I made this pattern I discovered that the bottom curve of the pattern needed to be adjusted slightly when the poster board was flattened. Both the body and fabric have give. This minor change in the shape of the pattern does not concern me. I show this adjustment to the pattern with the red line in the fourth pattern above.

The last two images compare the poster board shapes of the one dart and two dart shapes. I was pleased enough with the results that I decided to make them up using the swimsuit techniques I describe in my eBook How to Make Bikinis and Bandeaux.

Comparison of the one dart and two dart shapes.

The final test will be to see which of these two styles looks best on my neighbor with her input being crucial to the final decision. I am intrigued by the process of exploring pattern shapes as a collaborative process with the person who will wear the final garment. I recommend that if you follow this procedure, you take it in the kind of small steps I have indicated here. I would be very hesitant to change my concept if this was the final product. But it isn’t. It is just one small step in a larger process.

If you are interested in learning more about the evolution of this particular design, I am sharing the process with my Yahoo group How to Make Custom-Fit Bras.

Online Classes – Why Take One?

June 5, 2010 on 6:50 pm | In General Info, Online Classes, pattern making | No Comments

When I first started thinking of teaching pattern design online I seriously considered the question “Why should anyone take a class I offer online?” My description that follows is going to be a little long winded. Fortunately I have a student in my last class that put it very succinctly. I quote her below with her permission.

“I am really enjoying your class. When I was looking at it originally, I wasn’t sure it would be profitable for me since I already had your book. But, with the videos and the critiquing I’m finding it incredibly helpful.”

Karen, Beijing, China (member of How to Make and Upper Torso (aka Bodice) Sloper)

Researching Other Online Classes

I took several online classes to see how others were doing it. The ones I took involved receiving printed material in PDF format, forums, and chats where I could discuss with the instructor the issues that came up in the class.

I was already doing most of this through my book How to Make Sewing Patterns, my eBook How to Make Custom-Fit Bras, and my Yahoo Group forums which are free to anyone interested (see the Blogroll sidebar). The difference between these online classes and my groups and books is that the online classes were available for a limited time period. What I was doing was available 365 days a year. I wanted to be able to offer something of value that went beyond what I was already doing.

Videos for Class Demonstrations and Lectures

I remembered back in the 70s when I first started using my book to teach Pattern Design through the San Francisco Community College Adult Education division. It was a real eye opener to see that when I did a classroom demonstration people who had read my book all of a sudden started to get it. I could see the light bulbs going off in their eyes.

At the time I wanted to create video presentations that would not be limited by the geographic location of San Francisco. But that would have involved creating 8mm movies and people would have needed film projectors and projection screens. I did not think this was a practical alternative.

With the advent of the internet I realized I could now provide the visual demonstrations I had been doing in class through streaming videos like those on YouTube. I started my classes with that in mind. I create these videos so people can download them to their own computer for a permanent resource. For people in my classes on slow internet connections, I provide the videos on a CD. I make the videos not more than 5 to 6 minutes long so they download quickly. This also makes it easy to zero in on a particular topic like chapters in a book.

Fitting Critiques

Then as I was teaching the basic fitted sloper classes I realized I could critique people’s fitting issues through photos they submitted to me through the class (see below for an example). These critiques allow me to give a very careful evaluation of the fitting issues which I put into PDF format. This allows the individual to have a permanent reference they can access any time. It also allows everyone in the class to see the issues other people need to address for their particular body shape.

Doors are Open 365 Days a Year

It also occurred to me that while in a bricks-and-mortar school doors need to physically open and close, there is no such restriction over the internet. So I have adopted the policy that once you take a class, you can have access to the class for as long as you need. When I reopen a class for another scheduled session, I will reinstate you in the class roster at no additional charge.

Ongoing Course Development

It is this combination of factors and the enthusiasm of my online students that keeps me committed to continue my online patternmaking classes. I am thrilled to be able to develop additional online classes that delve into aspects of pattern design that I have been unable to approach when teaching in a bricks-and-mortar environment.

Additional Blog Entries

Preparing for Red Dress Day

June 3, 2010 on 12:50 am | In Events, Fitting Issues, Sewing Techniques, pattern making | No Comments


RD-Bill RD-Susan-Raj
Bill Rivers Raj and Susan Walia
To see a larger version, click on an image.
More Photos on Flickr


Awhile ago a friend of my wife and I, Bill Rivers, mentioned he was going to celebrate his 50th birthday by doing the AIDS/LifeCycle 7-day bike ride from San Francisco to Los Angeles from June 6-12, 2010. We got to talking and he told us about the special day when everyone, men and women, wear red dresses.

Somehow the discussion veered on to the idea that he would like a red tutu. I had acquired instructions for making tutus back in the 70s and had always wanted to make one. So the die was cast. I started as I always do by researching images of different styles of tutus. Boy are there a lot of variations. I saw one that I really liked because it reminded me of the cartridge pleated Elizabethan Neck Ruffs that I had made before.

So when Bill came over for measurements I showed him the images of what I was thinking of as well as the other variations. We got to discussing how to make the tutu so that he could wear it all day long. Bill also expressed an interest in wearing it for the entire 7 days of the ride. So the challenge became how to make a tutu that you could wear with different clothes that were going to be exposed to some serious exercise.

I came up with the idea of building the cartridge pleats on a wide elastic waistband that could be worn over just about any garment. I pulled some waistband elastic from my stash of elastic and put it around Bill’s waist so we could adjust it for the comfort factor. This was the easiest measurement/fitting session I had ever done.

Then I was off to my favorite fabric store in San Francisco, the Fabric Outlet on Mission street, to buy the yards and yards of fabric that were going to be required. One of the reasons I love this store is I can always find fabric that surprises me. I was not disappointed. I found a red net fabric that had a metallic sparkle to it. They also happened to have some wonderful red ribbon trim that sparkled as well and was a wonderful complement to the fabric. From my research I knew I needed to bulk out the fabric to achieve the effect I wanted so I also bought some regular red nylon netting. It was not nearly as lustrous as the metallic netting so I used it as an inner lining for the tutu.

Then all I had to do was to sew it up–Ha, Ha, Ha. Cartridge pleating is interesting to do. But to stabilize it so it would stand up to vigorous wear was a major challenge. But I persevered with the results you can see.

Part II

In the middle of this project my computer died. Fortunately I live 5 blocks from a wonderful business which builds custom computers for me, Castro Computer Service. I lugged my dead computer down to them and cried “Help my computer died.” They took it in and checked it out and told me sadly that the motherboard was a goner.

As I was talking to them about building me a new computer and having them save my life by transferring all my data and programs to the new computer from the old one the topic of the AIDS/LifeCycle came up. It turns out that my computer guru, Raj, was doing the ride for the second year and was being joined by his sister, Susan, the woman who manages the business end of Castro Computing Services with a firm hand–don’t try to put anything over on her. It turns out their mother is going along as a roadie.

Susan and I talked about the Red Dress Day and she told me how much she wanted to wear a cape. I got intrigued by the idea because I have worn a cape and know how hard it can be to keep them on when you are just standing around, much less riding a bike. Once again the die was cast. By knocking our heads together Susan and I came up with a cape that was a full circle of fabric with an opening for her head.

I put one together and when she road tested it, she came up with the idea of adding straps to keep the fabric from flying up in her face so she could see where she was going. It sounded like a good idea to me so I made the addition.

And of course we couldn’t leave Raj out of the picture. He is a very masculine kind of guy so I envisioned him with a vest. Thinking of my conversation with Bill I wanted to create something that could be worn over any other garment. When he came by for measurements and a quick draping fit I could see he was disappointed in not having more. We talked back and forth and decided a frilly skirt would be a nice addition. Strong masculine from the waist up and nice and feminine from the waist down.

Back to my favorite fabric store where I found a lovely crushed, panne velvet with nice frilly lace for the skirt. You gotta love a fabric store that so consistently delivers the goods. They have a fabric and notion selection to die for.

But enough of me talking. Check out this YouTube where you can hear about this ride from Bill, Susan, and Raj and this wonderful venture they are participating in.

To see more of their stories and contribute your support, if you should so desire, check out the pages below.

Marking for DIY Fittings

April 20, 2010 on 12:38 am | In "How to Make Sewing Patterns" book updates, Fitting Issues, Online Classes, Sewing Techniques, pattern making | No Comments

Back in the 1970s I wrote in my book How to Make Sewing Patterns about how you could fit yourself using typewriter ribbon to mark those hard to reach places. Who would know back then that typewriter ribbon would become so hard to obtain.

Fortunately I have found a product that works as a wonderful substitute for typewriter ribbon. It is called Chaco Liner from Clover Products. This product comes in a dispenser that allows you to draw lines on fabric using a device with a spoked wheel. The video below shows how to use the Chaco Liner Refill to mark the hard to reach locations such as the top of back darts and seams like the neck curve.

How to Make Sewing Patterns — book update

March 9, 2010 on 12:50 am | In "How to Make Sewing Patterns" book updates, Fitting Issues, General Info, Online Classes, Pattern Design Guides, Sewing Techniques, pattern making | No Comments

I wrote my book, How to Make Sewing Patterns, back in 1977 and have been asked if I had plans to revise it. There are only two things I do differently today than when I wrote the book 33 years ago. So I am focusing my time on teaching my online Patternmaking Classes and developing supplemental material to my book as Pattern Design Guides rather than taking the time to revise the existing book.

The two things I do differently are I use gingham for fitting the bodice and skirt. And I have revised how I draft the woman’s front bodice pattern.

Gingham for Fitting:
When I was teaching Pattern Design at San Francisco Community College Adult Education Division back in the 70s I would stress the importance of looking at the grain of the fabric to determine whether the fit was correct. As we were using muslin, I would carry around a magnifying glass so that people could clearly identify the direction of the grain.

Then one day I was in the fabric store. When I walked past the display of gingham, I did a double take. The woven pattern of the different colors of threads in the gingham made the grain jump out. It was so easy to see what was happening to the grain as it is shaped on the three-dimensional human body I knew I had found the perfect fabric to achieve super accurate fittings. When I teach my online Upper Torso Sloper (aka Bodice) and Lower Torso Sloper (aka Skirt) classes I can use student submitted photos to help them achieve accurate fits within an 1/8″.

Woman’s Front Bodice Pattern:
Throughout my book I show how to draft the initial patterns without any darts. I do this because nature never repeats the same shape twice. So it is my contention you will never be able to determine the size, location, or length of darts accurately from measurements. If there were corners and sharp angles in the human body, maybe you could take accurate measurements. But the human body is a series of continuously changing contours. From what I have heard even body scans using sophisticated equipment cannot accurately create a two dimensional representation of an individual’s body from the measurements they take.

The one exception to “no darts” in my book is that I show how to draft a woman’s front using a dart. Once again when I was teaching back in the 70s I had large class sizes and lots of bodies who were willing to helping me develop data. So I came up with a chart for how to adjust the woman’s bodice pattern based on the difference between the full bust and above bust measurements.

But the chart does not cover the full range of possible bust sizes. But more than that, it creates a pattern that has a bust to waist side panel that is tricky to design from. It is essentially off grain. So what I do now is draft the woman’s front pattern without a dart. It creates the size you need so that you can establish a very accurate dart in a fitting.

I have a PDF file with the two revised pages for this draft which you can download and print out to revise the drafting procedure in my book: Women’s Front Bodice Pattern Draft.

To fit this pattern I use a dart into the armscye for the above the bust shape, the “A” Dart, and a dart to the waist to establish the below the bust shape, the “B” Dart. What this fitting procedure does is it allows you to use the horizontal grain around the full bust to create a very accurate “A” dart. You can then adjust the “B” dart to ensure that the vertical grain of the fabric is correct at both the center front and on the side of the body.

Front Bodice Grain and Darts

With the sloper designed in this way, whatever design lines you draw for the side of the body can be envisioned as they relate to the horizontal grain.

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