Well one of the assignments that is given to my students is to sew a pair of jeans. It is a great learning process, they learn how to do a zipper fly, button holes, patch pockets, and a slew of other techniques that can be used on other applications and garments. Most of the work is done with a 515 and a double needle lock stitch. For that double needle, we have a pretty nice Durkopp machine. An awesome German machine, real straight forward and easy to thread and super durable. But like the saying goes, "anything that can go wrong, will go wrong" and there were a few set backs. The first being the bobbin pin that holds the bobbin/bobbin case in place snapped off. Someone didn't thread the bobbin correctly, and a bunch of the top needle thread wrapped underneath the bobbin, wrapped around the pin and broke the stainless steal piece clean off. Normally a typical 24-27 tex thread wouldn't break that pin but working with 60 tex, you are looking at a pretty hefty force. $365 later it was fixed and I stressed to the students how crucial it is to thread the bobbin correctly and push that pin tab down.
Smooth sailing until this beauty happened:
Oh yes, that pin was in the upright position and look at that nicely wound birds nest of thread. This is no fun to fix, always keep a nice sharp knife or razor blade with you. Just shy of an hour to fix that, just remember, if you are in a rush it is best to take your time and make sure everything is threaded properly, it'll help in the long run. Through my experience about 70% of the problems are due to improper threading.
No comments:
Post a Comment