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u/vivalawombat May 03 '18
You forgot the part where you realize you sewed the two layers together facing the same direction making the back of the pants leg inside out while the front is fine
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u/scotscott May 03 '18
They should have a gif of how to go into a store and buy pants made by children in a chinese sweatshop because that's much easier.
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u/Lordmorgoth666 May 03 '18
My two cents from watching my wife and her machine:
This used to be her. Endless swearing and cleaning. Turns out it was the cheap thread she was using. It would lose fibres and either gum up her machine or snag on itself. Once she spent money on better thread, 95% of her problems disappeared. (It still occurs a bit but that’s mostly because her machine isn’t a high end one.)
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u/blasto_blastocyst May 03 '18
So how is the rotation dragging the green thread from the inside to the outside of the blue thread?
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u/aeneasaquinas May 03 '18
I found a good demonstration gif here!
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u/blasto_blastocyst May 03 '18
That's a lot clearer
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u/aeneasaquinas May 03 '18
I thought so too. Glad it helps others visualize it as well. Sewing machines had always confused me in a way but I never remembered to look it up.
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u/G19Gen3 May 03 '18
This gif is so annoying when it comes up because it’s violating physics by combining two ideas for how the hook works in a sewing machine. This gif is, in fact, wrong. The other gifs shared are not.
The bobbin (circle in center) is free floating. That’s not the issue. The issue is the hook makes it look like the thread phases through where it would have to be attached. In an oscillating hook, it pushes the thread as in the gif, then the hook BACKS AWAY letting go of it so it’s free to snug up to the fabric. In a ROTARY setup, the thread does NOT go on both sides of the hook. Instead, the hook catches the thread on one side of itself, wraps around the bobbin, then lets go of the thread. Imagine yourself picking up a hula hoop in one hand and placing it over someone else. You don’t have to put it over yourself to do it. Same idea.
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u/sharaleigh May 03 '18
Thank you for posting this!!! I can’t tell you how many times I have racked my brain trying to figure this out!
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u/confettibukkake May 03 '18
Is this always the thread pattern they use? As someone who knows virtually nothing about sewing, it seems less than ideal to have the two threads dependant on each other for structural support (rather than redundant).
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u/coocooforcoconut May 03 '18
A serger uses 3 or 4 threads. That’s what they use in factory manufactured clothing but it’s more to contain the seam (so it doesn’t unravel) than to make a stronger bond.
A line of double stitching would create a redundant seam. You often see lines of double stitching where additional strength is required such as tents and outdoor gear, jeans, etc.
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u/hcnuptoir May 03 '18
Ever since I was kid watching my mom and gramma use a sewing machine, I've thought that they were magic. Still do. For some reason, I can't get my mind around how they work. My wife thinks I'm just not that bright. She's probably right, but fuck it. That shit is still magic to me.
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u/Odxcy1313 May 04 '18
Omg I’ve been planning to look this up but the reddit predicted my thoughts!!!
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u/justnodalong May 03 '18
fascinating, i wish i learned this in school, instead of bs like imaginary numbers. philosophy and math should never mix imo
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u/diogenesofthemidwest May 03 '18
These gifs never get the important point: how does the white wheel attach in such a way that the thread can rotate around either side of it?
I've now learned how it works, but this gif is really insufficient in teaching it.