Originally Posted by
zozee
I’ve never used a cone either. My quilting teacher used a coffee mug to hold it upright. Is there a reason not to?
The coffee mug (or quart canning jar, etc.) work if you put it on the floor. If it's just behind the machine, the thread isn't pulling straight upward, and can drag and mess with your tension. Cone threads are made to pull straight off the top.