If you do end up buying a machine of your own, I highly recommend keeping a little book/log as you work - what thread, if you adjusted tension, oiled, what worked, what didn't, what pattern you used (your own, a panto, or robotics, whatever). It can be helpful to look back if you have tension problems for example, and see what you did to solve it... I also joined a facebook group for my machine and whenever someone posted some information that I thought I might need some day, I printed it out and put it in a binder. After a bit I had so many pages I had to organize by topic. Both books have come in handy many times...