Originally Posted by sharon b
IWhere do I get the upholstery thread ? and do I use it the same as regular thread ?
Actually, you can purchase real jeans thread -- the yellow kind you see jeans sewn with. It's a little pricey, I think, and ummm yellow. You would definitely need a larger jeans needle to handle the thicker thread.
It sounds to me as if your machine may not have enough raw power to pierce the denim. I know you have tried this on two machines, which makes this seem less likely, but still...... Do you know anyone who has a different machine you can try? If the machine itself is too weak for this job, changing the needle and/or thread isn't going to help.
Is there a machine you can borrow? Or perhaps you could take some pieces to a dealership and see how other machines handle the job.