Thanks a lot for solving my problem with the presser foot. Now, do I disengage the feeddogs or not...Also, the top tension looks okay when set at 3 on Pfaff 7550, but back of the quilt doesn't...I see loops, should I adjust the bobbin tension, which I have never done before and if yes, can you tell me how...
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Re: Adjusting tension when stippling
Yes you should lower the feed dogs for free motion sewing. The tension can be set higher as required. A perfectly tuned up machine uses a setting of 5 but don't be afraid to go higher to get rid of the looping on the bottom. Also, oil your hook every 8hrs with Pfaff hook oil (which is lighter weight than regular sewing machine oil) if you have it, otherwise use white sewing machine oil. Looping on the bottom can be caused by a dry hook. good luck!
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Ashleigh--Your machine will work satisfactorily ONLY if the presser foot is down. When the presser foot is up, the tension disk is released, therefore, no tension = a big knot of thread.
To free motion quilt, you should drop the feed dogs. Install a darning foot (this foot is shorter in length so when it is lowered, there is a space between the presser foot and needle plate). The space allows the fabric to be moved easily while stitching.
Some sewists will free motion quilt without a presser foot (if they don't have a darning foot), but that is very dangerous as one can easily sew through a finger. However, even when sewing without a presser foot, the presser foot mechanism needs to be lowered in order to properly form stitches.
First, you will need to select a brand new needle of the type suitable for your fabric. Select a proper thread weight and type for your needle and fabric.
Select the proper presser foot for your project/fabric. On some fabrics, you may even want to use a straight stitch needle plate to prevent the fabric from going down the needle hole.
You will want to adjust the upper tension so that the upper and bobbin threads meet in the middle of the fabric.
Also, probably want to adjust the presser foot pressure so that the presser foot presses harder or lighter (depending on the fabric) so the fabric will feed through evenly, ie both the top and bottom fabrics move together at the same rate. Hint: if it is really thick, like sewing a quilt with batting, a walking foot may be helpful.
Be sure to test on scrap fabric from your project before beginning sewing your project together.
Lower feed dogs. Turn on Needle Down. Presser foot pressure on Darning setting. Don't forget to lower the presser foot lever. That's about it! Since you are going to be the feed dogs, it doesn't really matter if you have a stitch length set or not, but do have width set for "0". The spring loaded darning/embroidery/quilting foot is the best for stippling, but try it with any open toe foot you may have. Do a few samples first using the threads you intend using on your project because the tensions might need tweaking. Try to get the result you like by adjusting only the top thread tension. If you really have to adjust the bobbin too, put a small mark on the bobbin case where the "normal" position of the screw is so you can return to that when you are done quilting.
The most common troubles with feeddogs not working properly is either lint trapped in between the feed teeth...remove the needleplate and clean out the lint which may look like felt in extreme cases.
the presser foot tension is too low, in which case, increase tension...there will be a knob of some sort at the top of the machine directly above the Presser Foot Shaft.
It is a remote possibility that the feeddog height needs adjusting ...it will have been a major trauma of a severe jam or tugging etc to cause this.
As it would almost certainly result in other timings being affected and particularly in the case of a Serger/Overlocker, the added risk of breaking loopers (expensive), I would recommend a service by suitably qualified technician to restore all to optimum condition.
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The most common troubles with feeddogs not working properly is either lint trapped in between the feed
teeth...remove the needleplate and clean out the lint which may look like felt in extreme cases.
the presser foot tension is too low, in which case, increase tension...there will be a knob of some sort at the top
of the machine directly above the Presser Foot Shaft.
It is a remote possibility that the feeddog height needs adjusting ...it will have been a major trauma of a severe
jam or tugging etc to cause this.
As it would almost certainly result in other timings being affected and particularly in the case of a
Serger/Overlocker, the added risk of breaking loopers (expensive), I would recommend a service by suitably
qualified technician to restore all to optimum condition.
Bargain Box in Australia
Pressure on the pressure foot can be adjusted on some machines by turning the knob on the top leftside of the machine directly above the needle assembly. Look for a knob that has fabric types on it and adjust accordingly. Also check your thread tensions.
Make sure you have the presser lifter lever in the proper position. When lowering it, push to the rear and it will stop half way down. This engages the upper tension but keeps the foot from lowering down and touching the fabric. If this doesn't help please post the exact problem, i.e. thread pulling to the bottom etc. Good luck!
To stipple ,remove the ankle and foot, lower the feed dogs and, most importantly, lower the presser foot lever. You can also buy a LOW SHANK darning foot which will help prevent skipped stitches. It must be screwed onto the machine instead of snapping on. sewman7