A little change to make a BIG differance on Cowboy sewing machines

[RockyAussie]

4 hours ago, Spyros said:

Thats like 0.4mm thread... can it do double that thickness?

Waaay more.

 

3 hours ago, dikman said:

What I forgot to ask is what's the thickest thread this combination will handle?

#69 to #415 or in metric 40m to 7m. I have not myself used any thing over #277 (metric 10) so I can not say with certainty yet. 

[dikman]

Excellent! That covers everything I have! It will be close to the Holy Grail of sewing machines - one machine that can do it all.

I can see me getting a lot more use out of the machine now.

[Gymnast]

9 hours ago, RockyAussie said:

#69 to #415 or in metric 40m to 7m. I have not myself used any thing over #277 (metric 10) so I can not say with certainty yet. 

Now I start to wonder why the original design of the needle plate got the hole so much wider than this new design?

[dikman]

I suspect the original design called for a heavy duty stitcher and sewing light material was not part of their remit. After all, Juki also have a range of machines to suit lighter materials, if needed..

As for fitting a Cobra 4, I'd be very surprised if it didn't fit, as the clones are just that, clones of the original Juki so I would expect most parts should be interchangeable.

[Wizcrafts]

1 hour ago, Gymnast said:

Now I start to wonder why the original design of the needle plate got the hole so much wider than this new design?

I think that when Juki designed the TSC-441 they marketed it for companies that sewed buffing wheels, car wash cloths and other thick items that would need very thick thread. The hole in the so-called blanket feed dog, part of the blanket foot set, allows for up to a number 27 needle (for #415 bonded or 6 cord linen thread). When the Chinese cloned the Japanese 441, they copied the feed dog hole in the blanket set,  but elongated it into an oval slot in the smooth top leather feed dog. Most people buying a new Cowboy, Cobra, or Techsew 441 clone will receive the blanket set with their machine. I got it with my Cowboy CB4500 and one of my best friends got it with his Cobra Class 4.

[RockyAussie]

Been getting a few sales I am happy to say but I need to point out that the needle plate and dog foot sets for the cb 4500 (441 clones) are a different size to the ones made for the Cowboy cb3200. Please be sure to identify which machine model you have when you message me. For any of you that have ordered please feel welcome to post here your findings when you get them. If there are any pictures that would be great. If there are any improvements you think may help.

[kgg]

1 hour ago, RockyAussie said:

Been getting a few sales

That is great as this is a real game changer for the 441 class machines. Great job.

kgg

[Wizcrafts]

I wanted to report that I used my narrow Aussie throat plate and feed dog to sew a holster with #277 thread and a #25 needle on my Cowboy CB4500. Previously, I used them to sew a zipper into a cloth coat using #92 thread and a #19 needle. I had to increase the top tension which I had backed off to balance the knots with the lighter thread. I will probably leave this set in place going forward unless I need to use my holster or stirrup plate.

My next narrow set test will be with the inline feet I got from Toledo Industrial Sewing Machines. Previously, I used them with the slotted throat plate sans the feed dog.

FYI: sewing leather on a Juki 441, or a clone, without any feed dog changes the forward stitch length and throws the reverse stitches out of sync (vs using a feed dog). This is because of the leather's drag on the throat plate under the usually high pressure of the inside foot. Without a bottom feeder you only have dual feed. With the dog you have a more predictable triple feed.

[dikman]

Thanks Wiz, #277 is the largest thread I have so this set is likely to stay put on my machine almost permanently. I'm just happy that I'll be able to go down to #138 on thinner materials with minimal adjustment.

Christmas has come a little bit early.

[RockyAussie]

2 hours ago, Wizcrafts said:

My next narrow set test will be with the inline feet I got from Toledo Industrial Sewing Machines. Previously, I used them with the slotted throat plate sans the feed dog.

Thanks for that feedback Wiz. I am not sure how that will go on thinner weight stuff as I think the foot would put a fair pressure down into the slot in the needle plate. Might be one instance where the standard narrow needle plate may work better. That said I don't have one of those inline feet to try myself. I have found that other funny foot the comes out the front works well when I want to do something like that oil stone pouch in the picture shown before. This is another couple of pictures showing the foot I mean stitching that same oil pouch.

I will be interested to see how it goes. If it works ok I might just have to get me one of them feet and try it out.