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  • Members
Posted

What is the proper needle for leather on the class 4, they sent me 794 S style needles, does the "S" stand for spear point ? Is that for cloth?

thanks Clint

  • Moderator
Posted

That is the correct point for leather (in addition to the sometimes available diamond points). If you need to sew denim or other cloth, buy some 7x3 round point needles. The spear or chisel point you got will shred cloth.

Posted IMHO, by Wiz

My current crop of sewing machines:

Cowboy CB4500, Singer 107w3, Singer 139w109, Singer 168G101, Singer 29k71, Singer 31-15, Singer 111w103, Singer 211G156, Adler 30-7 on power stand, Techsew 2700, Fortuna power skiver and a Pfaff 4 thread 2 needle serger.

  • Members
Posted

Ok thanks, I'm just having trouble with dropping stitches on sewing 4 pieces of 6 oz leather, I increased the stitch length and dropped the needle down about 1/6" but still not consistent 

  • Members
Posted

Here are the handy needle charts I "borrowed" from the Internet.

 

58b0af736a70d_SewingNeedlechart1.thumb.jpg.59a58b0c76d97639276f0523f182ffb6.jpg

 

58b0afa033fe8_SewingNeedlechart2.thumb.jpg.e1af5cc7d2514eb31bdf6d8dfe635a43.jpg

 

Leather_Needle.jpg.2e580142b959425a346eceb7777e2d4e.jpg

One day I hope to learn how to sew.....

Singer 111W155 - Singer 29-4 - Singer 78-1 - Singer 7-31 - Singer 109w100 - Singer 46W-SV-16 - Adler 20-19 - Cowboy CB-4500

  • Members
Posted

Thank you very much

Clint

  • Contributing Member
Posted

I always have the needle as far up as it will go.  Never did care for the 'S' needles, though, due to the hole they make (in line with stitch).  The stitch length shouldn't affect skipping.  More likely your needle is rotated out of position.

JLS  "Observation is 9/10 of the law."

IF what you do is something that ANYBODY can do, then don't be surprised when ANYBODY does.

5 leather patterns

  • Moderator
Posted
  On 2/24/2017 at 10:30 PM, JLSleather said:

Snip 

The stitch length shouldn't affect skipping.  More likely your needle is rotated out of position.

Expand  

Skipped stitches all the time can be caused by inserting the needle 180 degrees out of phase. The scarf (cutout) above the eye should face due-right on a Cobra Class 4 (and all other similar machines). If you inserted the needle with the scarf facing to the left, the hook can't pick off the loop effectively.

Posted IMHO, by Wiz

My current crop of sewing machines:

Cowboy CB4500, Singer 107w3, Singer 139w109, Singer 168G101, Singer 29k71, Singer 31-15, Singer 111w103, Singer 211G156, Adler 30-7 on power stand, Techsew 2700, Fortuna power skiver and a Pfaff 4 thread 2 needle serger.

Posted

What gauge needle are you using? At that thickness it would need to be I think 200 or more. Just a guess. If you have gone down to a thinner needle your hook may need to be closer to the needle as well. I would carefully check the timing first before that as these machines get knocked out easily and will still work most of the time.

WH.jpgWild Harry - Australian made leather goods
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  • Contributing Member
Posted

OOOPS.. to answer your original question, teh 794 series needle is correct.  I like the "LL" point needles, which you can get here:

http://www.ebay.com/itm/400730390609?_trksid=p2055119.m1438.l2649&var=670274800836&ssPageName=STRK%3AMEBIDX%3AIT

There are places to order in more bulk, but there isn't much cost saving ordering 100-packs, and these people are pretty quick.

 

JLS  "Observation is 9/10 of the law."

IF what you do is something that ANYBODY can do, then don't be surprised when ANYBODY does.

5 leather patterns

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