There is a spring inside the bobbin case. I have found that I get more reliable tensioning with that spring removed. The only problem with this is if you need to do any high-speed sewing, which I never need to do.
Hello. your cb4500 videos are very good and helpful, could you make a video on how to set up the machine so that the forward stitch matches the reverse stitch?
Thank you very much for showing this detail about the shuttle of this type of machines. I tried to find a bit out about the needle-hook distance. I do not have the CB 4500, but I notice your remark, that you should aim for little play of the shuttle direction, that can change this distance. When I look at household sewing machines with a CB oscillating shuttle hook (somewhat similar to the CB 4500), they got a large play able to make a play of needle-hook distance of 0.3 mm. I do not know why the manufacturers choose to have this high play, but it could be to avoid a stop of the machine if the thread gets into the race. Furthermore these kind of shuttle hooks do not seem to be able to take advantage of the needle scarf.
If you want to experiment with different spacing, which is useful to do if you find yourself alternating between thin-needle projects and thicker-needle projects, you can shim the spacer temporarily with card stock.
Hello Uwe The job you do for sewing people is just priceless. This particular film helped me out a lot with my Hightex cb4500 and thank you for that. Still got many issues that you didn’t cover on your channel yet. Is there a way to contact you for troubleshooting at all? Thank you once again. Great job
Uwe master please help. reverse problem. How to set the reverse so that the sewing machine sews back hole to hole. I sew, for example, 4 mm stitches, I do reverse and the lever only reaches 0, it doesn’t go further. Seiko CH 8 B
Hi Sir, do you have any video how to adjust the needle and the tip of the hook? My machine stop working because of this issue. The needle is a bit far from the hook tip. Hope you can help me solve this problem :(
There is a spring inside the bobbin case. I have found that I get more reliable tensioning with that spring removed. The only problem with this is if you need to do any high-speed sewing, which I never need to do.
Thanks for the update
You make great vids
Thanks for explaining it so clearly!
Hello. your cb4500 videos are very good and helpful, could you make a video on how to set up the machine so that the forward stitch matches the reverse stitch?
Thank you very much for showing this detail about the shuttle of this type of machines. I tried to find a bit out about the needle-hook distance. I do not have the CB 4500, but I notice your remark, that you should aim for little play of the shuttle direction, that can change this distance. When I look at household sewing machines with a CB oscillating shuttle hook (somewhat similar to the CB 4500), they got a large play able to make a play of needle-hook distance of 0.3 mm. I do not know why the manufacturers choose to have this high play, but it could be to avoid a stop of the machine if the thread gets into the race. Furthermore these kind of shuttle hooks do not seem to be able to take advantage of the needle scarf.
Good doctor
If you want to experiment with different spacing, which is useful to do if you find yourself alternating between thin-needle projects and thicker-needle projects, you can shim the spacer temporarily with card stock.
Hello Uwe
The job you do for sewing people is just priceless. This particular film helped me out a lot with my Hightex cb4500 and thank you for that.
Still got many issues that you didn’t cover on your channel yet. Is there a way to contact you for troubleshooting at all? Thank you once again. Great job
Uwe master please help. reverse problem. How to set the reverse so that the sewing machine sews back hole to hole. I sew, for example, 4 mm stitches, I do reverse and the lever only reaches 0, it doesn’t go further. Seiko CH 8 B
What kind of issues will there be if the ring is installed in reverse? Thank you
Hi Sir, do you have any video how to adjust the needle and the tip of the hook? My machine stop working because of this issue. The needle is a bit far from the hook tip. Hope you can help me solve this problem :(
Uwe, just messaged you on Instagram about needing help!