I have always wanted to see how the insides of a sewing machine worked.... In a box of old stuff headed for the land-fill was an old Singer, so this is what I did. All I have to say is, Ya' gotta' love plexi-glass.
Step 1: what you need...
You will need a few things; All the stuff I used was just leftovers from other projects. If you have leftovers too then yippie for you!
well, however you manage to get the stuff you will need...
A; sewing machine (check around you should be able to find an old one collecting dust some place for pretty cheap, or possibly for FREE!! or you might already have one that is worthy of a small hack.
B; Plexi-glass, if you don't already have it you can get it from any big hardware store like Lowes or Home Depot. (I like Lowes better myself). A big enough piece shouldn't be more than about 10 or 15 bux at most.
C; hot glue gun and glue sticks. ... you could use silicone glue or epoxy, but glue sticks set fast and are cheap.
D; paper of some sort (for stencils of the shapes you will cut out of the plexi-glass) ... I used a piece of contractor's paper, but printer paper or an old paper bag, whatever will work. Along with the paper you will need a writing utensil. I used a Sharpie. I like my Sharpie, it does NOT suck.
E; a few flat-head screw drivers. (for opening the machine)
F; last but not least, the wonderful tool known as the Dremmel Tool. (and cutting disks)