Reading through the comments I’m am somewhat amazed at the passion and outright rudeness displayed here. K S LAM displays an issue with magnets and some of you folks get a little weird about it. I just want to thank KL LAM for demonstrating to me to keep magnets away from my machines bobbin

@kslam5733

4 жыл бұрын

Thanks for your words of encouragement! Life will become more easier and happy if people can share their experiences of how they overcome problems. People need not go through the same mistakes and thus save their time and efforts. Many viewers reflected that they also encountered the same issue that the metal bobbin was obstructed by the magnet. So the facts I mentioned in my video are valid. Thanks again for your warm regards.

@Native_love

3 жыл бұрын

Thank you@KL LAM for the video! I also have the same issue. This has given me some ideas as to how to fix it.

Perfectly explained!! Thank you so much for showing such detail in this video. Great job!!

@kslam5733

Жыл бұрын

Thanks for your encouragement. Hope you can find fun in using the little machine.

What a brilliant teacher you are!! I absolutely love your series.

Thank you very much for the useful information

Another great video, thanks. I've read the comments and didn't find any rudeness that one commented on and I thought you did a great job trying to answer the questions. Any way, keep your videos coming.

I have viewed all of your videos and find very helpful. I just purchested my machine and I am looking forward to using it on many projects, thank you for the tips.

@kslam5733

4 жыл бұрын

The machine will bring you a lot of joy in DIY many things from making a small bag to reupholster the leather couch. There are a lot of sanding and smoothing of the machine which comes as a tool for the street cobblers in China. The professionals will do them easily and develop their own ways to solve the problems. We domestic users have to learn through using the machine and the path is a bit curved. Join the facebook group "China leather shoe patcher" and people there would help you when you send them the questions.

Hi, Thank you for this and your other patcher videos. They have been very very helpful. I’m having issues exactly as you show in this video, but without the magnetic guide :-) I think it’s due to my fooling around with the bobbin timing, I’ll have to go back to basic set up. Cheers Alistair

@kslam5733

4 жыл бұрын

Thanks for watching. Hope that you can help others too when you have mastered the skills.

Thanks for the video, very through and very interesting. I wonder if you could overcome the magnetic force of the guide by placing an even stronger magnet below the bobbin assembly holding it down and solving the jamming issues. 🤔

@kslam5733

4 жыл бұрын

Thanks for your idea and I have tried. In theory your idea may work. In practice it is impossible to make any adjustment to the bobbin area. There is no room to put a magnet beneath the bobbin case just to attract the bobbin to counteract the magnetic guide. Even you can put a thin magnet under the case, it will disturb the case movement making it difficult to move around. Even you can cut the thin magnet just round enough to place under the bobbin and the magnetic force is just enough to balance the uplift force, it then obstructs the needle thread wrapping around the bobbin case to complete a lockstitch cycle. Again thanks for your watching and thoughtful idea.

I use a small magnetic seam guide like the one you are showing and have never had a problem...? If you have this problem just use a small piece of wood or metal and attach with a rubber band.

@kslam5733

2 жыл бұрын

thanks for your feedback. If you use thicker thread, the gap the magnetic guide raised would not allow the thread jam inside so this would help eliminate the problem. Thanks also for your suggestions using rubber band to reduce the magnetic force.

I 3D printed some plastic bobbins. Sla printer.

@kslam5733

3 жыл бұрын

The plastic bobbins are good for this purpose - prevent the magnetic force obstructing the bobbin movement.

wow ty ty

So your recommendation is not to have a magnet in thus chinese patcher. I em i right? Tnx

@kslam5733

4 жыл бұрын

Yes, not recommend to use as these magnets hurt the thread structure when thread is being excessively sandwiched between the bobbin and the needle plate.

The obvious solution here would be to use a non ferrous bobbin also it looks like you have another issue here which if corrected would negate the need for a guide the machine appears to be sewing on a bias

@kslam5733

4 жыл бұрын

It will definitely sew off the material if without holding the material with your hand against the seam guide.

@jamesburriss1086

4 жыл бұрын

Even with a guide the machine will not sew parallel with the foot I have to feed the material on a diagonal to the foot I am addressing only the machine I have and trying to see if anyone else has had this issue who has solved it and could possibly help me out

@kslam5733

4 жыл бұрын

@@jamesburriss1086 As the machine can sew in 360 degree by turning the cylinder head, you can put your materials in whatever position you like and the machine will move on in just the direction you choose. So I can't figure out why your machine will sew away from your direction you choose. You can join the Facebook group "China leather shoe patcher" and send them pictures of your problem, the members there will help you out. Please try.

@jamesburriss1086

4 жыл бұрын

@@kslam5733 Hello K S Thank you for responding and the link you provided I was wondering if such a group existed I will most certainly pay them a visit .l think I may figured it out l don't think the top and bottom plates on the round tube are not aligned so that when i sew straight away from me the foot does not move straight back back but moves on a slight diagonal to the left and the stitch is angled in that direction l am going to try to align those plates and see what happens and again Thanks

@kslam5733

4 жыл бұрын

@@jamesburriss1086I am trying to understand what your issue is about by viewing my video again. Perhaps what you mean by the patcher " not sewing straight" may be caused by the presser foot. In my video, there are two layers of leather being sewn together. The top layer was always pushed to the right while the bottom layer moved straight backward. This is quite natural as the presser foot acts as a walking foot moving the materials backward. So the top layer would be pushed more while the bottom layer moved less. To solve this weakness you need to hold your materials firm to counter balance the moving force and use a guide or to draw a straight line for sewing straight. This weakness is also common to the domestic sewing machines. The materials being sewn is only moved by the moving teeth of the feed dogs at the needle plate while the presser foot is static.

My stitches are slanted. What causes that. Look like this. \

@kslam5733

3 жыл бұрын

This depends on how you position the presser foot. If your presser foot is positioned in a straight line with the stitching path of the leather sewn, the stitches would be sewn in straight patterns. Learning is by trial and error, so try as many times as you like to find out why these slanted stitches happened.

Just get a few Aluminum bobbins and case then use your magnetic Guides

@kslam5733

3 жыл бұрын

Using aluminum bobbins would be ok. It is difficult to get aluminum bobbin case unless you make it 3D yourself.

Clearly your opinion! I have had my patcher for well over two years and have been using a sewing machine guide to keep the line straight on my belts for as long as I have had my patcher and I have not had a single issue. The stitching looks great.. Have you tested this "theory" with every patcher made? Of Course not!. So in your opinion, with your machine, a sewing guide should no be used, kind of arrogant to think everyone else with this machine is having the same issue as you and should ban sewing guides all together!

@kslam5733

4 жыл бұрын

The magnetic guides are specifically designed for the sewing machines rather than particularly for the Chinese leather shoe patcher. We patcher users use them hoping that they can serve the same purpose. The magnetic guides are designed to be placed by the side of the bobbin rather than on top as the magnetic field would affect the bobbin movement. This is common sense as tested in my video! As my review indicated, the larger guide can sew and the top stitches seem normal. However a closer look will reveal that they are not quality stitches especially the bottom stitches. If you do not require quality stitches, they can be treated as normal. I have two patchers and I have been using the 1st version for over 30 years. These patchers are the same both in structure and appearance since their birth during the 1940s in China. In this video, I have let the pictures speak themselves so as to achieve an objective review. The process is transparent as seen. If you think the magnetic guide can serve your purpose, then need not care of what I said. Since these magnetic guides are not expensive items, everyone would try even without my video. I could not "ban" them from using these little gears. What I reveal in the video are clearly facts that I encountered and I would like to share with others. If this would constitute your accusation of being "arrogant", no one would share their experiences in the youtube channel anymore!

@peachstatecustoms

4 жыл бұрын

@@kslam5733 I have three of these machines. I have had them for over 7 months, and I use a sewing guide with them daily. Does not matter what you think the guides were made for, THEY WORK! Maybe not with your machine - but they work on all three of mine! I have been working with leather for 25+ years. I have 6 Industrial leather machines in my shop - not including the 3 patchers, and I have well over 30 home sewing machines. I have been sewing all my life so I know what a perfect stitch looks like. Using the guide on my patcher my stitches are PERFECT! Top and Bottom! I showed pictures of my stitches front and back on the Facebook Group as well as a video of me sewing with a guide to prove that the sewing guide does not interfere with the bobbin on my machines. You then replied that metal bobbins won't work but aluminum bobbins would. I then uploaded a video showing I had all metal bobbins, now you come up with this test - which proves nothing! Not facts, just your test results - someone else could do the same test and the results could be different. The sewing guide does not work on your machine - but that does not mean it won't work on other owners machines - and it does not mean that they will have bad stitches on the bottom - that is just your opinion, and again I posted a video on the Facebook Group showing the guide works on all three of my machines! So now come up with another explanation as to why the guide works on my machine but not yours! I am all for promoting this machines, just not promoting information as fact when it is not a fact. Until you test more than the two machines that you currently own and come up with consistent results, then the results are not valid and can not be considered facts especially when two other owners have different results.

@kslam5733

4 жыл бұрын

@@peachstatecustoms My video is certainly the reflection of my experience in using the little gears. What revealed are not fake as seen and they are definitely facts. If this really happened to me and certainly I would like to share this to others. Everyone has their own mind to think and to reach their conclusion whether or not this is true or false. My view certainly does not represent yours. Happy to see that you have your own perfect stitches with your magnetic guides. However, this could not eliminate and replace my impressions in using these magnetic stuff. If you accept the quality of the stitches after using the larger guide, then it is OK and need not care of what I said. I just point out the fact that the magnetic guides are not suitable for use on top of the metal bobbins. The magnetic field would have strong effects on the bobbin movement as there is only 3 mm distance between the magnetic guide and the metal bobbin. They are designed to be put by the side of the bobbin. Please read more the instructions of these magnetic guides and they would have such a warning for not suitable for use on top of bobbins. Again thank you for your kind feedback.

@RTOHIO

4 жыл бұрын

@@kslam5733 It suggests that attaching a non-magnetic strip to the sewing side of the magnetic guide, Like a piece of plastic or delrin would solve the issue by moving the magnetic guide away from being over the metallic bobbin. You rock K S Lam. Thanks for your time making videos and sharing knowledge.

@kslam5733

4 жыл бұрын

@@RTOHIO You got the point. Place the magnet away from the bobbin would surely eliminate the issue. Thanks for your suggestions.