Turntable Leveling, Again

Aceto, a bulls-eye balance looks like a clear circle with a bubble at the top, and a small marked circle at the top, in which the bubble should be positioned for true level. Makes leveling much easier and more accurate, than having to continually move a linear level! They are very small, too; mine has a base with a 1-1/2 inch diameter, which makes it handy for fitting into tight spaces as well. Just remember, that the bubble move toward the high position

IMHO -- Stabila brand is the level to beat, 'tho they have some econo models as well. The #81S 9.5" torpedo I use is good to 0.5mm/meter in the upside position, which is really hairsplitting. OT, but the other tool I'd pay anything for and never give up, is the Armstrong Tools #64-005 torquing screwdriver for setting receptacle and breaker terminals to correct torque.

I'd check the platter for bearing wobble (run-out). If you can't borrow a dial indicator (I think it's called; ask a machinist or auto engine builder), I'd build my own. Use a RS soldering aid -- the weighted base thingie with multiple arms with aligator clips on the end. Clamp something hard with a smooth finish in one of the clamps, and place it so it just barely touches the platter surface. I'm thinking a toothpick for starters...Slowly rotate the platter by hand and see if the object touches the platter evenly around it's edge, middle, and inside. You might need some other jig to check the inside. You could also build a jig out of scrap in no time...

(What do the black lines on a bubble level indicate? Some kind of tolerance based on the level accuracy, I'd guess...)

Shasta, why is torquing receptacle and breaker terminals so important? Isn't just "tightening the snot out of it" O.K.? (Sort of like Marisa Torme's "balls on" technical calibration standard for the dripping faucet in MY COUSIN VINNY!

I just found that those bulls eyes levels are available at Sears (go where the levels and other measuring tools are) for $ 1.49/ea.

That has to be cheaper than what our local hi end retailer would charge us after painting it gold and putting it in a snazzy wooden box....

Fatparrot, ok I have a bull's eye. But where do you put it? I know i'm being dense again but the spindle is where I would want to put it.