bj139

Here is one of those brushless servo motors. I have no experience with the brushed type.

Check the safety clutch.

How about a Singer low shank buttonhole attachment for an iron straight stitch machine?

It's a 66. The Singer 15 has the tension dial on the end plate. The 201 has a little white power switch at lower right. I don't know how you can tell the orientation of the hook under a cover plate. The 66 is really only suitable for fabric or maybe very light leather.

I found with the needle positioner set to stop down, if the needle was coming up, it proceeded to make a new hole to get to needle down. Most times I did not want a new hole. I removed it. Stopping needle up may be good but I didn't try it much.

Singer 66 with an oscillating hook. A later model with reverse.

Cheers! I'm glad to see you got it working. The next ones will be so much easier. They are mostly all the same.

The video was less than 2 minutes long, my standard for the attention span of most Youtubers including me. Ignore the needle bar 10 second part. The needle must be near the point of the hook so bottom with needle and top with hook will get you near time. I don't have a 206 but have taken hooks out of several machines. If it was easy to get it out it should be easy to get it in. At least, that's what she said. Sometimes the bobbin case does not quite lock in and spins a quarter turn. Mashing the foot pedal in that case would probably not be good. Turning the handwheel first will tell you something is wrong.

I like the Enduro servo motor with a 45mm pulley. I have two, they are so inexpensive. I also have a Consew 3000 servo which sews the same but was 3X the cost.

Beautiful work!!!

I usually make my first stitch using the handwheel. That way if things are not proper they don't get all bent up under motor power or the thread doesn't get yanked back up through the needle. Remove the needle and bring down the needle bar to bottom dead center. Reinstall hook with hook point at it's top dead center and snug up the set screw on the hook you can get to. Reinstall finger in notch of hook. Your timing should be close but then re-time. Here is a video on removal.

I remove the pan on mine with the oil in it and just keep it upright and put it in a plastic bag to keep dust out. I use one table for multiple machines so my walking foot machine in in the table now and my Singer 281 and the oil pan are in a 55 gallon plastic bag in a plastic concrete mixing pan. Maybe your bobbin case is not seated right and your needle is hitting it.

If the foot lifts too high on an industrial machine it will release the tension. Doesn't matter if it is caused by your lifter or the material you are sewing. Can you post pictures of your foot and the bushings above it in the up and down position? Can you sew thinner with no problems?

Great suggestion. I sometimes intentionally set my tension assembly out a bit so thick sewing does not release the tension and make a birds nest under the material.

It seems total upper tension was too high and shifting some of the tension to the larger units may have improved things. The larger units may be smoother and more consistent in operation.

Can you duplicate this sewing a stitch per second? It might alert you to what is catching on the top.

Good observation about the sock. In the past, I had inconsistent tension problems running the thread out of the plastic bag it ships in. This would increase top tension and pull the bobbin thread up.

Overloaded bobbin with thread rubbing on inside of case? Were the tracks in the brown belt sewed with a full bobbin starting from the bottom track?

What did they say?

I don't necessarily need a flatbed machine. An auxiliary table on a cylinder arm would work fine and give me more options. Any suggestions?

How did this work out for you? I am considering a similar one.

Those all seem above my budget. I don't have a business, just sew things for myself. I was thinking I could spend about $1500 max.

I would like to sew 3/8 to 7/16 inch of nylon webbing. I have my Mercury tension assembly set out so the tension is not released by the presser foot moving up but it is definitely overextended. I do want to get a triple feed machine since I have never used one. I tend to pin the needle thread to the needle plate with my left hand so I don't get the thread pulled out of the needle. In my video, I had already backtacked so the threads were anchored. I guess the used machine would have significant wear and could have a lot of problems.

If the center post on the Thor is 0.05mm too large, I know what I would do. A fine emery board and a way to spin the post, already there with the SM, would be needed. They sell some pretty fine emery boards to file your nails. It should make a fine polish on the shaft. Then, genuine Juki cases should fit. I am thinking of buying a Thor so my search led me here.