Boy, oh, boy, I'm one not very happy camper

Got my fabrics all cut and ready to sew for my duvet cover, started sewing with my old machine---the one that just came back from the shop with a $171.00 repair/tune up bill---and guess what

The very first time I use it, properly set up for tension, new needle, bobbin and only 33 1/2 inches into sewing a hem ----

the top of the machine sounds like a tin can full of rocks and she breaks down. Doing(not doing) as before with the addition of new clacking and other BAD gear grinding/slipping, definitely non-sewing sounds. Mr. Repairman supposedly replaced at least 2 gears, checked everything out and said she was good to go. I don't know how I'll approach this issue yet. Good thing his shop was closed for the day-----gives me a chance to cool down. Anyone have any suggestions or input for me???
I suppose now is the opportune time to unbox, set up and get using the new machine I bought last week. Bought on the internet, after looking at review after review, this new one comes highly rated (especially in the sewing denim category)----and what made the decision for me is a reviewer said she re-sewed the straps and repaired holes on her horse blankets! We'll see. I really wanted to keep doing that kind of stuff on what used to be "Old Reliable" and use the new machine for lighter duty. Oh well.
Meanwhile, I decided to add some useful hooks to the top of my inside cabinet, and came up with a way to display my O. Winston LInk "Solitude Siding" image. Bought the Mobil red flying horse cabinet knobs on Ebay (they match the Mobil sign of the Edward Hopper print at the head of the bed).
Hopefully I'll get the duvet cover finished tomorrow---tonight I'm going to try out the new machine.
