Instructables

Noisebridge Sewing Machine

This Instructable explains how to use a particular sewing machine, the Necchi belonging to the Noisebridge hacker space in San Francisco. It will be helpful in understanding sewing machines in general if you aren't familiar with them, but yours will differ in details.

A sewing machine stitch is different from a hand sewn stitch. The machine stitch consists of two threads, one on each side of the material to be sewn, which loop around each other to make one stitch. Thus a sewing machine has two threads, the main one visible on top of the machine, and a smaller bobbin of thread that's hidden away inside.

This instructable will show you how to remove and insert the bobbin, how to thread the machine, how to wind more thread onto a bobbin. Coming later, once I've taken more pictures: how to operate the machine.

Note: the foot pedal/power cord assembly is detachable, but can only plug in in one way. Also, there is an on/off switch on the right side of the machine. When it's on, a light will go on by the needle.
 
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Step 1: Bobbin insertion and removal

The bobbin is held in the "free arm" part of the machine, directly under the needle plate. The bits that hold the bobbin are called, collectively, the trace. The bobbin is held in a case, which is held by the trace. There's a flap that pulls down on a hinge to reveal the bobbin trace. The bobbin case has a little lever attachment that pulls out to let it be removed from the trace (see first pic). The lever also holds the bobbin in the case so when it's held out, the bobbin can be removed (second pic).

To put a bobbin in the machine, hold the bobbin case with the open side towards you. Hold the bobbin you're going to insert so that the thread is wrapped around clockwise (see third pic). Slide the bobbin into the case, where it should fit easily without any pressure. The thread coming off the bobbin needs to slide through a small slit (fourth & fifth pics) and then under the tension flap to come out by the kind of bar that sticks out the other side of the case (sixth pic). Really the pictures are clearer than this explanation.

There is a tiny flat-head screw holding the tension flap down. This controls the lower thread tension but you'll probably never have to mess with it... if you do, be careful not to loosen it so much that the screw comes out and the flap falls off inside the machine.

Now that the bobbin is in the case, put the case back into the bobbin trace assembly (pic 7). The bar that sticks off the bobbin case fits into a slot on the trace assembly (pic 8). Close the door on the whole thing. Let the end of the thread hang out (pic 9). You'll take care of this hanging thread in the next step, threading the machine.
TriciaSutton4 months ago
This machine is just wonderful. I'm glad I read all the reviews out there on all machines. This one definitely had the most positive feedback, so I bought it when our other machine died. I'm so happy we did. The speed control is such a nice feature. My 12 yr old daughter was a bit fearful of the power of our other machine and was intimidated. When she sat down to do this one, she LOVED it! I can see she'll eventually up the speed, but she loves that no matter how hard she presses on the pedal, she won't lose control.
The machine was a breeze to set up. I can thread a machine pretty easily, but this one was so simple I should have left my daughter do it. It took me all of 5 minutes to do it, and that included filling the bobbin, loading the bobbin, and threading the machine!
The number of stitches it offers is awesome. My daughter is very creative and already has ideas popping in her head on what she can do with all the stitches (99?)!
The machine is quiet and the structure is made of steel. Overall I am super satisfied with this machine! Homepage
lxpk5 years ago
Awesome tuorial Rachel, thanks for this as a sewing newb I will follow it to the letter.
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