I use a serger on which I switch threads, usually for colour, far more often than I like. I’ve never kept track of which spool I put where but have finally noticed some are thinner than others on how much thread remains on them. I mostly do just the general 4 thread serging with upper and lower loopers, then left and right needles.
I don’t think the threads feed through at the same rate, seeing how some threads criss-cross on a serged seam, and some just go straight. Can someone please tell me which threads get used the most, down to which the least, on a serger? I’m going to start rotating thick and thin spools every time I need to change threads so I can go through spools more evenly.
Thank you.
ATLANTIC SEWING GUILD 
Have been pondering your serger question. I do not make active wear but i do use my serger for garment making or finishing. I buy 3 colours of thread if the inside on the garment won’t show: white ,black,and grey. I am lazy and usually do three thread serging. If I do 4 thread the left needle is the colour of the garment.
In my experience it is always the loopers that use the most thread especially the lower looper.
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PS. Just to be clear I do not use all three colours(mentioned above) at once but all one colour depending on the fabric colour.
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Hi Minh,
To answer your question, the looper threads are the ones that get used the most, while the needle threads the least.
Josée
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Thank you, Sheila and Josée. I’ll be sure to put the thickest remaining spools on the looper threads from now on. I’ve also been more efficient at switching in developing a system similar to Sheila’s out of frustration of having to switch often.
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Babylock sergers are a snap to thread. Love, love, love mine. I switch threads for every project because I like to coordinate the inside with the outside. I’ve even used regular thread to get a colour match.
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Thanks! This was a huge help.
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I’m not sure if you’ve ever found your answer in all these years or not lol but I came here hoping to find it as well!! Suddenly I looked at my machine and the color coded guide and instantly figured it out!!! The first (and I mean in order of threading) needle uses the most since it is the one that zigzags!!
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Strange! The answers didn’t appear until AFTER posted mine lol…welp!
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Half the fun in life, if not most, is experimenting to find out yourself, even if answers were already out there and in multiple places. 🙂
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