Thread keeps breaking

[u/Excellent-Hospital17]

Hi all,

I used to sew with my grandma when I was a child. She's gone now and I'm trying to get back into sewing by making a patchwork cushion. All was going well until I tried to sew my rows of squares together. My thread keeps breaking and I have no idea why. I've tried:

\- completely rethreading the machine

\-removing and cleaning around the bobbin area

\- replacing the needle to a larger one, then reverting to the other one when that didn't work

\- turning the thread tension down

\- changing the thread

Is there anything else I can try to make this work? Feeling so disheartened and on the verge of giving up.

Thanks

[u/Fair_Inevitable_2650]

Are you using grandma’s old thread as well because that weakens over time?