The vintage Singer 401, 403, 404, 500 and 50e all are fantastic machines and don't need to be tilted. The needle is slanted and you can see without straining your neck.

Why did you not mention this before? Some things just make sense, but we are trapped in the "that's the way I've always done it". I just put door stoppers on my shopping list. Maybe I can cross off ibuprofen which I always seem to need when I finish a project.

I have a 403 Slant-o-Matic and I found that I still like having it tilted. Maybe because I'm 5' 2 1/2" on a good day, have a back neck, shoulder & lower back? Don't know, just know that I'm not leaning forward as much to get a good eye's view. Instead I can sit back in my chair and have a straight on view. Hard to explain. Wish I could take a picture to show the difference that I mean.

My husband made me wood ones. Works great and helps with my back.

I have a computerized viking I've been tilting for YEARS. it seems to be fine, i don't tilt when embroidering though

I also read on this board about the rubber door stops. Went to the hardware store to buy them.... and have forgotten to use them until now. Thanks for the reminder!

My LQS gave us all an empty fabric bolt, the cardboard thing, to put under the back of our machines to tilt them. They were free, so why not? Worked for me.

Ditto, I got the larger ones. Keep one set in my rolling machine case, the other on my sewing cabinet.

The legs on slide on clear table are adjustable. All I had to do was make the ones in the back higher to match the elevated back of the machine.

I do the same thing. I get the clear ones.
Made a big difference for me. Also helps me see what I am sewing.