Hello last resort of the free internet.

I had to sew some stoff for my basement and realized it is a real (marksmen?-)ship. It is more complicated then cutting wood for some furniture.

Anyhow, I want to enlarge my machine’s sewing step. That is, I want it to be able to sew more than five milimeters with one step. Maybe I should add a motor with more then 90 W (current Motor), but can this archived with gearing?

I do not care for sewing steps beyond <2 mm. Though my clutch allows any step-width fluidly. I am capable of deconstruct the machine and weld anything to it what is required. And make it in weight.

But my issue is figuring out what change would enlarge the step-width.

Even if your suggestion would change my settings, let me know your idea please.

Some pictures of the Internals:

(when issuing my hand down, the leverage goes into the direction of the arrow. But there is a ?Bobbing? on the left side. Imo this should be dependens on a rotation so I can enlarge the leverage)

I would appreciate any tip!

I try to be in the middle of my own opinion and beeing inclusive. Sorry for stepping ppl on the toes!

  • gadfly1999@lemm.ee
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    19 days ago

    A basic sewing machine is orders of magnitudes more complex than just about anything in a woodworking shop. You won’t get more out of on by putting in a bigger motor. I don’t even think you’re using the right terms to describe its parts and operations.

    If you’re set on doing this yourself, get some books and watch some videos and learn some basics. Then you might be in a better position to ask for help, or even understand the limitations of the machine you have.

    • gadfly1999@lemm.ee
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      19 days ago

      Adding to try to be more helpful: post a photo of the front of the machine. Knowing what model it is can help understand what its capabilities are and what controls it has available. It sounds like you want to sew a straight stitch and you want to increase the stitch length. This should be easy to set up on a machine like the one you’ve shown, but I couldn’t tell you from the photo what the maximum stitch length you could do on it is.

      The way the thing works is that the needle goes through the fabric, the bobbin mechanism interlocks a separate thread to the top one, the needle is pulled up, then the feed dogs engage the fabric to move it forward (or backwards even) for one stitch length. This dance is controlled by a careful arrangement of gears, cams and levers. You should be able to adjust it within the design parameters of the machine. To do more than that, you would redesign parts of it. Your time would certainly be better spent looking for a different model that supports your needs.

    • RamblingPanda@lemmynsfw.com
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      19 days ago

      It took me almost ten minutes the first time just to get that thread through its path into my needle. Holy duck, that’s complicated

    • 7dev7random7@suppo.fiOP
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      19 days ago

      I see your point and I just fixed my spelling mistakes for the third time. Please refer to my comment; I wrote this due to an emotion.

      It is clear to me that a more powerful motor would not change my step-width. While writing I wanted to offend people.to answer but when issuing the send-button I was questioning my own words - as always.

      • gadfly1999@lemm.ee
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        19 days ago

        No worries. I can see your frustration and I didn’t want to imply that you didn’t try to figure it out.

        I’ve only restored a couple of old machines of a similar vintage. They’re far better than any modern computerized garbage. I would suggest looking for some Internet forums for help. If it’s a Singer or another popular brand, there should be a few specialized forums where real experts participate that can help you better than I could.