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Forum > Sewing Machines > Machine makes weird "punching" sound when sewing twill ( Moderated by Sharon1952, EleanorSews)

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Machine makes weird "punching" sound when sewing twill
What's it doing?
stirwatersblue
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stirwatersblue
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Date: 8/24/12 3:01 AM

I'm sewing some medium-weight brushed cotton twill, and my machine is making a really weird sound every time the needle goes through the fabric. It sounds like it's puncturing it--which, yes, it is, I suppose, but it normally doesn't sound like this! The stitches look perfect and the machine isn't struggling; I'm using just a regular needle (I tried switching to a jeans needle, but it was too large, and it didn't help any anyway), and I routinely sew *much* heavier fabrics on this machine without the weird sound effects. Sewing one layer, no weird punchy sound. Two layers, punch, punch, punch.

Anyone know why this is happening?

(I asked DH, who was sitting across the room, if he could hear it, too. He nodded, but he may have just been humoring me! )

------
~Gem in the prairie

LynnRowe
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In reply to stirwatersblue <<


Date: 8/24/12 3:06 AM

It's the type of weave; twill is an off-set weave, so the two layers aren't going to be aligned as to where the horizontal and vertical grains meet. The needle may be slipping between the threads on the top layer, but is hitting and piercing the threads on the other layer, which makes the dull thumping sound.


------
I heart Panzy, Pfaff Creative Performance, the sewing machine love of my life!
And Baby (Enlighten serger), Victor (BLCS), Ash (B350SE-Artwork), Kee (B750QEE-Panzy's BFF), Georgie (B560-Kee's baby sister) and the Feather-Flock!

Most of all, I heart Woo (HimmyCat). Until we meet again, my beautiful little boy. I love you.

Sew4Fun
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Date: 8/24/12 5:23 AM

When I hear this sound I know I must change the needle. The sound means the needle isn't piercing the fabric cleanly and struggling. You either need a new needle because the one you are using is blunt, a larger needle, a different needle type or all three. Keep changing needles until the sound stops. HTH

------
Belinda. Melbourne, Australia
http://sew-4-fun.blogspot.com/

PattiAnnJ
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Subject: Machine makes weird punching sound when sewing twill Date: 8/24/12 6:58 AM

Sometimes the noise is due to the bobbin case (drop-in type, especially) having accumulated lint and is in need of cleaning.

------
"Improvise, adapt and overcome." - Clint Eastwood/Heartbreak Ridge

Lindy Ann
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In reply to stirwatersblue <<
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Date: 8/24/12 9:20 AM

Have you tried a microtex needle? I've used Schmetz microtex needles on Tencel and other tightly woven fabrics and it makes a big difference. I think the microtex needles are extra sharp.

Learn To Sew
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In reply to stirwatersblue <<


Date: 8/24/12 11:44 AM

Needle change. What size needle are you using? Is it a universal or a sharp? You need a sharp for sure. Size 12 I think. I think an 11 might be just a little small.

Last summer I took a class and made a pair of twill pants. I do not remember the punching sound, as I had a size 14 in the machine for the class. I did not know it would leave larger holes than I wished. I did change to a 12 sharp and it was easier sewing from that point on.

------
Bernina 630, my much loved main machine
Bernina embroidery module
Pfaff 2036 my back up & travel machine
Babylock Molly, mechanical
Bernina 1200DA serger
Unique Sewing Cabinet 450L

Annie P
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Date: 8/25/12 0:28 AM

I associate that sound with a blunt needle.

Marie367
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Date: 8/25/12 2:18 PM

I agree with everyone else that it is a needle issue unless there is something wrong with your bobbin. Sometimes you just have to experiment with size and type of needle for the type of fabric you are sewing. Your needle might be the wrong type and the wrong size. Fabrics and machines are funny things. Not long ago I was making a few bags out of twill on my old Kenmore. I started with a universal 16. My machine didn't like that at all; to my surprise, I ended up using a 14 microtex.

CM_Sews
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Date: 8/25/12 6:57 PM

Even simple quilting fabrics can produce different sounds when you sew them. Cotton Batiks, in particular, seem to be more "dense" and super-impregnated with dye. They often make little "pop, pop, pop" noises when I sew them that is different than the sound that other quilting cottons make.

CMC

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