DECOBOB the bobbin of choice for convenient hand piecing! DECOBOB 80wt Thread preferred by Quilters - perfect for RulerWork Quilting
DecoBob™ prewound bobbins. WonderFil pre-wound bobbins are wound with our 80wt DecoBob™ thread in a reusable plastic bobbin, which means there is no glue or wax holding it together (which also makes for happy machines)! DecoBob™ makes for an ideal bobbin thread as using a finer weight thread will also minimize the bulk in whatever you are doing, however DecoBob™ also has the strength, versatility, and reliability you can count on.
You want one. We promise! ( COMMENTS This is one of our favorite tools and it is always in our EPP “GO!” bag. What we love most about the Bobbinator is that the top compartment has a small slit in it to dispense your thread so that it doesn’t unwind within your EPP “go” bag. No more untangling of thread)
The Bobbinator is an amazing contraption th -at keeps all your Wonderfil Specialty Thread DecoBob thread organized and portable. The Bobbinator™ is a patented device that allows a bobbin to be turned into a spool and used as a top thread. Includes 10 DecoBob™ prewound bobbins in a choice of Class 15 or size L. This listing is for the size L style bobbin.
What is a Class 15 style bobbin? The Class 15 is about the size of an American nickel. Its diameter measures approximately 20.3 mm and has a width of approximately 11.7 mm. This bobbin has two flat sides.
Style L bobbins are typically used with home sewing embroidery and small commercial sewing machines. Style L is the most common bobbin style used in home sewing machines. It’s worth noting that the L Style bobbins are the same diameter as the Class 15 bobbins. As such, you can use L Style bobbins in a sewing machine that uses Class 15 bobbins. However, a Class 15 bobbin is too wide to fit in a machine that uses L Style bobbins.
The Class 15 (A Style) Bobbin:
The Class 15 is about the size of an American nickel. Its diameter measures approximately 20.3 mm and has a width of approximately 11.7 mm. This bobbin has two flat sides and is available in both plastic and metal.
The L Style Bobbin:
The L Style is about the size of an American nickel. Its diameter measures approximately 20.3 mm and has a width of approximately 8.9 mm. This bobbin has two flat sides and is available in aluminum, plastic, and as a Magna-glide core. It’s worth noting that the L Style bobbins are the same diameter as the Class 15 bobbins. As such, you can use L Style bobbins in a sewing machine that uses Class 15 bobbins.
However, a Class 15 bobbin is too wide to fit in a machine that uses L Style bobbins.
The M Style Bobbin:
The M Style is about the size of an American quarter. Its diameter measures approximately 24.9 mm and has a width of approximately 10.7 mm. This bobbin has two flat sides and is available in metal, and as a Magna-glide core. The L Class and M Class bobbins are substantially different in size. Machines designed to use L Class bobbins will not accept M Class bobbins. The M Class bobbins are much larger in diameter and will not fit into the bobbin case.
The Singer 8228 Bobbin:
The Singer 8228 is probably my favorite bobbin because it looks so cool. Its diameter measures approximately 9 mm and has a width of approximately 33.4 mm. This bobbin is only available in metal.
This bobbin is used in the old Singer treadle machines and fits inside a bullet-shaped bobbin case. Pretty neat!
For longarm & embroidery machines that have a metal bobbin case
Not recommended for domestic machines with a drop in bobbin
Fil-Tec Magna-Glide Cores:
Fil-Tec’s Magna-glide pre-wound bobbins are essentially just a bobbin barrel wound with thread. The magnetic core prevents backlash, creating consistent stitches without needing a backlash spring. Once empty, the core can be disposed or recycled. Bobbin and Bobbin Case Care:
Most importantly, you must take good care of both your bobbin and your bobbin case. The condition of your bobbin and your bobbin case dramatically affects your stitch formation. It’s important to intermittently inspect both your bobbin and your bobbin case to ensure no scratches or burrs have developed. Even the slightest nick will cause skipped stitches and thread nests. We recommend gently gliding your finger along all sides of your bobbin and bobbin case to check for inconsistencies. If you do discover a small scratch or burr, you should replace you bobbin immediately. A small scratch on your bobbin case can usually be gently buffed out with fine sandpaper. However, serious damage requires buying a whole new bobbin case.
Some longarm machines (A-1, Gammill, and Handi Quilter) take the M-style bobbin, which is larger in diameter than both L-style and Class bobbins. L-style bobbins and Class 15 bobbins are nearly identical in diameter (Class 15 bobbins are about 0.5 millimeters larger in diameter). L-style bobbins used to be the most popular bobbin style but with the abundance of rotary bobbin mechanisms and drop in bobbins, the Class 15 bobbin style is also a very popular size.