as the Sears scroll saw I bought about 30 years ago. OK, that is quite an exaggeration but it does shake my light and magnifier. The blade has some sideways wiggle. I've had it just a little over three years, use it about 10 hours per week on average, so it is probably needs an overhaul.
Thankfully accept any helpful hints, suggestions, and at this point I will even take ridicule.