HV sapphire 930 not feeding properly

Can I Free Motion Quilt on a Regular Sewing Machine? By National Quilters Circle

Yes

https://www.nationalquilterscircle.com/article/can-i-free-motion-quilt-on-a-regular-sewing-machine/

How to Stitch the Perfect Stitch Length for Quilting
JULY 28, 2020
Today’s Topic: How to Stitch the Perfect Stitch Length for Quilting

https://lorikennedyquilts.com/how-to-stitch-the-perfect-stitch-length-for-quilting/

I don't know about your specific machine, but in general for heavier fabric, increase the pressure on your pressure foot and reduce the length of your stitches.

Could be any of a multitude of reasons.

Check whether the feed dogs are actually rising 'above' the needle plate. If not, then they may be in a dropped position used for darning and free motion quilting.

Sometimes the feed dogs and the mechanism underneath is jammed with lint and debris. Make sure the dog teeth are well cleaned. Also check if the tips of the teeth are worn. Also verify that the needle plate is flush with the free arm--if it is raised, it will prevent the feed dogs from doing their job.

The other thing to check is whether the machine has a presser foot pressure adjustment. Some machines have it, others do not. On newer machines, it is usually a dial somewhere around the left side of the head or toward to top of the head. On older machines, unfortunately, some are simply a big screw head on the inside of the case directly above the presser foot bar. It basically applies more pressure to the presser foot, which in turn applies more pressure to the feed dogs. The problem will usually show up when sewing either very heavy or very fine fabric. Perhaps trying a different presser foot will make a difference.

I don't know what is the highest number the stitch length goes to on your machine, but a #2 stitch length is pretty short on mine. Try setting it higher.

Sewing Machine Presser Foot Stuck

Singer 6235 User Manual

YOur top tensions should be higher. and stitch length longer. :)

Straight stitch. Doesn't matter what stitch length you set. The stitch length is determined by how fast or slow you move the fabric in conjunction with the sewing speed of the machine. FMQ means that you manually move the fabric, so the feed dogs are disabled and a darning or FMQ presser foot is installed on the machine. The darning or FMQ presser feet have shorter shafts than other feet, which allows space for you to manipulate the fabric.

Search the internet for Free Motion Quilting. There are tons of web sites and videos available.

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Are the feed dogs in the raised position and not dropped for darning for free motion quilting? Is the stitch length set to somewhere between 10 to 12 stitches per inch? If the stitch length is set too close to zero, the feed dogs will barely move the fabric causing it sew in the same spot.

Be very careful to not push or pull at the fabric, and instead just guide the fabric without force and let the machine have control of the feed.

12 wt thread generally will not work well in the bobbin...


"Aurifil 12wt Thread
Aurifil 12 wt thread is ideal for hand quilting, big stitch hand quilting and machine quilting. 12 weight thread creates a more defined and often primitive look. It's great for designs that use a longer stitch length if using a machine. When machine quilting with 12 wt thread, use 40 wt in the bobbin, increase your stitch length, lower your tension, use Topstitch size 90 needles and stitch slowly."

1. Lengthen your stitch length

2. Use your even feed foot (walking foot attachment)

Not sure if I can help, but it may have to do with the heavy thread as well as the fabric and needle combination. If the fabric is thick or tightly woven, be sure to use a brand new sharp needle. (If the fabric is tightly woven (like Batik), a thicker thread may present a problem.) In your case, if using a heavier thread, perhaps a top-stitch needle would be beneficial since it has a bigger scarf to protect the thread. With the heavier thread in the top, the top tension will need to loosened. BUT, if you loaded the heavier thread in the bobbin, the bobbin tension will need to be adjusted to accommodate the thread thickness. However, remember that if you adjust the bobbin tension for this project, you will most likely need to readjust it for the next project using different materials.

FWIW, if the machine still works fine with regular fabric and thread, then you'll know that the issues revolve around the current project.

Understanding Thread Tension Threads

How to Achieve Ideal Sewing Machine Thread Tension Threads

Sewing Lesson 10 How to Fix Tension on Your Sewing Machine