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lsz1 material thickness

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sailor john View Drop Down
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    Posted: 10 July 2017 at 2:16pm
I have your lsz1 machine. I tried to sew through two layers of 11oz dacron and two or three layers of laminate sail material plus some other layers of 4 oz dacron. starting out was hard and after about an inch and a half the machine jammed. The under side was a rats nest and it looked like it moved the bobbin case a quarter turn. I move the bobbin case and tried the machine on some lighter material to see if I had damage the machine but it seems to be fine. What are the limits of material thickness for the lzs1,dealing mainly with sail material?
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john

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MattGrant View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote MattGrant Quote  Post ReplyReply Direct Link To This Post Posted: 10 July 2017 at 3:07pm
Hi John,
Your assembly sounds pretty thick. I would say max thickness of material is about 5/16" and you must go slowly when you encounter such thicknesses. The rats nest issue would be tension/threading related and nothing to do with material thickness --- that is unless the pressure foot tension is way too loose.

Also you should be using an SD1 or DI needle for so much thickness. Thread should be V-92 polyester.
Best Regards,
Matt Grant
Sailrite
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