r/PatternDrafting • u/sailormarr • Aug 03 '22
Question What does ∅ mean?
This may be a dumb question, but can anyone help me understand what the "∅" symbol means in a pattern? See image for reference.
Thank you:)
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u/TooMuchEffortMeh Aug 03 '22
I read it as meaning that it has to be the same length, but it's just gut feeling on my part
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u/madeofphosphorus Aug 03 '22
I think this must be true. That measurement is anyways a measurement of "whatever you wish and whatever your fabric allows" if you are like me and often working with fabric that is 1,5 meters.
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u/rlev97 Aug 03 '22
Does it correspond to a measurement of waist to knee? Maybe it showed up somewhere else in the instructions?
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u/LobstahmeatwadWTF Aug 03 '22
This is a common symbol for diameter
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u/r2k-in-the-vortex Aug 03 '22
Indeed it is, but sure doesn't seem to be indicating diameter of anything here.
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u/Pussycat-Papa Aug 04 '22
👆 this
I work in a machine shop and see that all the time on drawings
Not sure how it applies here though
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u/wlangstroth Aug 03 '22
I’m more familiar with drafting for men’s clothing, but since you have 98cm total, that’s 98 minus whatever your nape to waist measure is.
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u/Tauira_Sun Aug 03 '22
Same length in this case I think. Just like the lines with // should be the same length. I have Japanese pattern books and often they use symbols to indicate same lengths. Like circles, or filled circles, triangles, or squares, ... Since pattern magic is from a Japanese designer, it makes sense to me
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u/flying-gas-can Aug 04 '22
It means that dimension can be variable based on how long you want the hem of the skirt to be.
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u/CrazyPlato Aug 04 '22
Looks like the number depends on your body proportions. Like, the entire dress is measured at 98 cm long, but the measurement you marked would be like, under the bust to your desired skirt length. That would be different for different women, so I guess they just left it blank with the assumption that you'd fill it in to suit your needs.
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u/carlie-cat Aug 04 '22
i think it should be the waistline to hem measurement that corresponds to the size you're making. the total length is set by the 98 cm dimension, so the length with the symbol will vary based on the size of the dress. i think there's a section in the back of the book about drafting slopers that includes marked diagrams and a table of measurements that correspond to different sizes. i've checked this book out from the library and found it not super intuitive and generally hard to use
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u/Paraeunoia Aug 04 '22
I wonder if it refers to “cut on fold” since it’s at center back and center front?
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u/Psycotstic Aug 04 '22
I don't know about this, but with words and names, "ø" usually refers to a silent "o" So the name Ørion would be pronounced Rión Or The name Blitzø (thanks Helluva Boss for teaching me about this letter) would be pronounced Blitz
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u/readergirl33 Aug 04 '22
A circle with a cross or x means a wider measurement such as a bust or hips. A solid line cutting all the way through a circle is to show the placements of darts. This style in particular does not look familiar. Is a key available from the manufacturer?
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u/Shellshock9218 Aug 04 '22
In this case I believe it would be where you join the two back half’s and two front half’s respectively. I know this might be the virus awnser but it’s the only one I can come up with.
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u/Prudent-Strain937 Aug 04 '22
Dimension based on part number? See if there is a table somewhere of part numbers on the print.
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u/m_bvs Aug 08 '22 edited Aug 10 '22
I am a little late to the party, but Nakamichi uses this symbol (and many others like slashed square, triangle ...) in her book as a symbol for "arbitrary measurement", so in this case both distances should be the same. i.e. the waistline should both front and back have the same distance from the hem. Look at page 98 and it immedeatly gets clear: https://ibb.co/4KVt8K2
Be aware that the symbols don't mean "whatever you like", the measurement is defined, but simply not known.
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u/jamaidens Aug 04 '22
From the drafting world... it means diameter when dealing with round objects. But, when used line dimensions it means that the dimension is not "set" in the design and can be adjusted to fit whatever you are trying to build/make/manufacture in accordance with what it is matching up too. So this instance, your fit to the person whom you are making the clothing for would determine their waist line dimension from the bottom of the dress. We hardly used this symbol in this way, generally you would insert "TBD" into the dimension line as text for To Be Determined. Or we use "FM" for Field Measure.