Looking At Consew P1541S-Cc What's The Difference From Juki 1541S?

[brmax]

Its worth calling the dealer selling the mfg’s machine that “list” this capability. 

What I seen it is not consew or juki, these are two that did not show the proposed capability change, so if anyone has tried this 277 thread in similar machines. Im always curious. I seriously dont mind this possibility, rather think it amazing. 

But do find that I do mind if a company has mistakenly listed this spec in print, this includes online without correct knowledge.  Especially if I dont see thread spec capabilities across all the typical sale sites. So this first and formost would be a question. Additionally within a manual this surely is listed or printed, if theres a manual! 

If all this 277 thread capability is fact, thats just super cool, and I congratulate Thor with this accomplished modification. I did notice on this particular model a bobbin case opening lever. So this is using the required hook differential that Juki uses on the safety clutch design of many years ago. 

In any case we here enjoy the machines and their designs, its much easier here in this forum to understand why certain machines are copied and sold. We should also understand any business back story of these processes. 

Im fine so far with both my Juki 1541, 1541s and so a bit of my homework here:

http://thorsewingmachines.com/index.php/shop/thor-sewing-machines/thor-gc-1541s-single-needle-leather-and-upholstery-walking-foot-sewing-machine-new-detail

 

Good day

Floyd

[Wizcrafts]

It may or may not be possible to modify any walking foot machine with a vertical hook to clear #277 thread (0.586 millimeters) around the hook by moving the hook to the right, away from the needle. The hole in the feed dog would have to be large enough to clear a #25 needle. The recessed tab on the bottom of the throat plate would need to be widened a bit and the lever that pulls the hook backwards would need to be tweaked to clear the thread. Finally, the top and bottom tensions may need to be lessened to reduce the strain on the take-up levers and cranks as they may not be strong enough to constantly pull the heavy load imposed by 45 pound test thread without bending or breaking down.

After all this, the machine would not sew well with a #18 or#19 needle. It would have to either be reset for thin needles, or super tweaked to get a large enough loop in the eye of the needle to be picked off by a more distant hook tip. It is unlikely that all this will work out with machines designed with #23 needles and #138 thread as the normal limit.

[kgg]

I just took a look at the Thor site and I think someone may have fooled up on entering the value of the thread capacities.

Their site lists their 1541S has a thread capacity of V277 and their 1508 NH  at V270. Juki 1541s capacity is V138 while the Juki 1508NH is V207.

kgg

[Wizcrafts]

The Juki LU-15xx series are heavier duty machines all around than the entry level 1541 series. The 1508NH is specifically built to withstand the stress and increased thread tensions and foot pressure required to sew with #207 thread. It does not mention any larger thread for a reason. They don't want to be responsible for repairing machines damaged by such high stress work as veg-tan leather workers impose on their machines. This is why there is a Juki TSC-441. It is built to withstand the forces involved in sewing thick stacks of leather, harness, saddles and buffing wheels. It is designed to handle thread sizes up to #415 and not break down.

[kgg]

Wiz, that makes perfect sense why Juki specifies what the max thread and needle size should be run in their machines ... machine longevity.

kgg

[Wizcrafts]

3 hours ago, kgg said:

Wiz, that makes perfect sense why Juki specifies what the max thread and needle size should be run in their machines ... machine longevity.

kgg

Not just longevity, but reliability. Forcing a machine rated for #138 thread to tension #207 may put adjustments out of tolerance and leads to skipped stitches and/or poor lay of the thread. This leads to calls to dealers for help for problems caused by the owner, rather than the builder. It would be like putting Snuf-Or-Nots on a Harley then complaining to your local Harley dealer when you get ticketed for too loud pipes.

[Rustic]

I bought a Thor 1541s... it sews 270 poly just fine.

 

 

[brmax]

I can imagine the bobbin case. It must have a different, longer tension screw.

Obvious I like to keep a few bobbin cases seperated so not having to reset tension. With the same size but different types.

I can see to promote this strategy in this case, for sure. 

I take your saying it can use the same 277 thread in the bobbin. This is all interesting

 

Good day

Floyd