Originally Posted by Lindsey

When upper and lower thread tensions are balanced, knot between top and bottom threads is hidden between fabric layers When lower tension is too loose (or upper tension is too tight), knot is visible on right side of the fabric When upper tension is too loose (or lower tension is too tight), knot is visible on wrong side of the fabric. Perhaps you are now using two different color threads and it is more noticeable. Try using the same color thread and see if you stil notice the thread showing on the top. Yes, and clean out your bobbin area it sure could be that dust bunny in there.

Originally Posted by Numa

Rule of thumb is that if the problem is on the underneath of what you're sewing, the messed up part is on the top (tension, threading, needle, etc). If the problem is on the top side of what you're sewing, the messed up part is underneath (bobbin, bobbin tension, lint, bobbin case). Hope this helps.

Originally Posted by quiltmyride

HI, I have a 6260 Janome and I am having a problem with the bobbin thread showing on top with the feed dogs lowered. I have the top tension on Auto and the bottom on 3, I am using monofilament thread on top and bobbin thread in the bobbin. Any help would be sooo appreciated as I have 4 quilts to do!

Originally Posted by Peckish

Quiltmyride - you might also get more answers to your question if you post a new topic, instead of burying your question in an old topic (this thread is 2 years old). Lots of people reading it might not realize you asked a new question towards the end....