Wizcrafts

Ginny; The needle is now correctly aligned and shifted close to the bobbin case assemble. Good! It looks like it is ready to sew. All you need to do is rotate the hand wheel towards you one full turn. The needle should go down, hopefully form a loop, then capture the bobbin thread and pull it up through the needle hole. I usually push the bobbin thread up through the hole after inserting the bobbin. This removes one point of failure from the equation. It matters not which way the bobbin thread lies while waiting to be picked up. The pickup point is the part of the bobbin case that is tapered into a narrow, sharp point. That is where the top thread's loop is captured, then pulled over and under the bobbin case. Yes, the top thread forms the loop, in the eye of der noddle (a movie title). You should be able to place material under the pressor foot and sew. Have you tested it?

Ginny; The needle is in wrong! You have it with the eye facing forward. The eye of the needle must be on the right side, facing the inside of the machine. The thread goes in on the left side and comes out on the right. Further, do not lower the needle in the needle housing. Insert it all the way up in the housing and tighten the bottom screw. The movement described by a previous poster was for the upper screw. That upper screw on the housing allows you to move the needle sideways, closer or farther from the shuttle. When correctly set, the needle goes down as the bobbin case turns clockwise and the pickup point stops behind the needle. Then, the needle lifts momentarily to cause a loop to form on the right side. At that moment, as the machine turns, the pickup point begins turning counterclockwise, grabbing the looped thread, pulling it under the bobbin case and forming the lockstitch. If the thread does not loop on the right side of the needle, there will be no lockstitch! If you lower the needle in the housing the eye may feed the thread under the shuttle drive and around the center post on its bottom, binding up the machine, tearing the top thread through the work. Try these changes, note the timing process above and post your results.

The top thread must go around the tension disk, then up to the the hole in the takeup arm, down through the hole in the needlebar, and into the eye of the needle, from left to right, with the eye facing to the right. The bobbin should be setup as follows: Load the thread tightly onto the bobbin. Insert the bobbin into the bobbin case so that the thread pulls backwards, from the right side. Pull the thread into the slot in the case, then underneath the tension spring, then through the tiny hole in the case, then through the hole in the top of the post in the case. Leave enough thread to pull up through the hole in the throatplate. Pull the thread up through the hole and seat the throat plate in its detent stud. Rotate the hand wheel to raise the needle, then raise the pressor foot with the lift lever on the back. Insert some material and lower the pressor foot lever, ensuring that the foot is in firm contact with the material. Spin the hand wheel towards (counter-clockwise rotation) you with some material under the pressor foot and see if it sews a stitch or skips stitches. If it still skips, check the spring on the top or back, to ensure that there is good pressure on the pressor foot. Some things that will affect stitching on a patcher include all of the above, plus: wrong needle length, or size for the thread, to much bobbin tension, jammed top thread, or machine out of time at the bobbin. If the machine has gone out of time you should not mess with it, but contact a qualified repair person.

Bob Kovar contacted me from Toledo Sewing Machines. He has exactly the servo motor I described. Huzzah! From 1 stitch per second up, all foot controlled, with a built-in 3:1 reduction gear, yielding 500 rpm max at the shaft, with 3x the torque of a straight servo motor.

I have always had clutch motors on my sewing machines and currently have one driving my walking foot machine. It serves me well, but is hard to control at very slow speeds. It wants to either stop or run, when I want it to tick-tock around curves and strap tips. I am considering buying a servo motor to replace it, but am curious about how they are controlled. I want one that will go from about 1 stitch per second, with the floor pedal backed nearly off, smoothly up to full speed (as per my pulley ratio) with the pedal fully down. It seems that every servo motor I read about is controlled by a pot on the back of the motor, with no mention of the foot pedal having any control over speed (or am I mistaken?). Are there any brands of 1/2 HP servo motors that are speed controlled by the foot pedal, rather than just by a knob on the back of the motor? In other words, behave the same as a clutch motor; from a dead stop at heel down, through variable very slow through medium speeds as you toe down, up to the motor's full speed at full toe down. If so, what are those brands or models and who has the best prices for them? If there aren't any such animals, are the pot controlled motors just switched to full on when you press down of the floor pedal, with the pot determining the one speed at which they run? Do they come to a dead stop when you heel down, like a clutch motor?

Great! I'll take it! How do we get this done on this forum?

I am looking for a discontinued Tandy CraftAid #2940 (I think), of a crouching leopard in a tree. This is a billfold size tracing pattern. If anybody here has one in good condition please let me know how much you want for it. Also wanted is a Midas/Kelly stamping tool #291 (a border design about 1/2" x 1/8"), as shown below. Further, I am looking for a Neva Clog stapling plier, with staples, to make belt keepers. Thanks in advance; Wiz

Thank you all for your replies. I now have a new bobbin case from Bob Kovar in Toledo! It works perfectly! I also got a pound of #138 nylon thread from him at a very good price.

Howdy; I have a National brand model 306N (Made in Japan) walking foot machine used to sew vinyl and leather. It came with one M size black bobbin case. I usually pre-wind a bunch of bobbins with whatever thread I am going to use on a job and would like to obtain some extra proper bobbin cases for this machine. The bobbins are large M style (1" x 3/8"). The machine has some parts stamped Seiko and is made in Japan. It looks sort of like a Consew 206 series machine. I bought some M bobbin cases on eBay, supposedly compatible with my machine, but they had to be ground down at the upper-left opening, to allow the cases to fit into the shuttle. Also, the thread comes out of the springs in a jerky flow and causes the stitch knots to move up and down. Apparently, this machine uses a non-standard bobbin case, with a much wider opening on top. This is because the case has to clear two tiny screws on top of the shuttle assembly, about 1/4" apart. The cases I bought do not clear the left screw head and cause the case to jam, unless it's left tab is ground off at the opening on top (which I did, with limited success). I have posted a group of pictures below to show what the OEM bobbin case and the machine looks like. Hopefully, somebody here has a similar machine and/or knows where I can get the proper bobbin cases for this machine. If you have some you don't need I'll be happy to buy them from you. Thanks in advance, Wiz