Thanks for your pictures. I will offer you $65 for the 98 series since you hate it that much:grin-square::grin-square::grin-square:
So where are all the non-believers at now? I hate being called a liar...
So where are all the non-believers at now? I hate being called a liar...
Ask and you shall recieve:
-Picture is attached. The smaller level is the one I bought. It's a Starrett 98-8.
-Prior experience: I bought an old valley. Replaced the rails and cloth on my own without any problems. I'm no table mechanic but I did my research and it was pretty simple. I can't say I have any experience with a machinists level but I don't think any is required lol. I know how to calibrate it and read it...it's not rocket science lol.
Need anything else??
So where are all the non-believers at now? I hate being called a liar...
Ask and you shall recieve:
-Picture is attached. The smaller level is the one I bought. It's a Starrett 98-8.
-Prior experience: I bought an old valley. Replaced the rails and cloth on my own without any problems. I'm no table mechanic but I did my research and it was pretty simple. I can't say I have any experience with a machinists level but I don't think any is required lol. I know how to calibrate it and read it...it's not rocket science lol.
Need anything else??
You do understand that the bigger level is supposed to be ten times the sensivity of the smaller one? So looking at the picture it looks like the smaller is showing about .010" per foot out of level. That's a six inch level, so I'd think a .005" shim under the end of it will get you close to level. You're probably going to need more than that due to compressibility of the shim material and the cloth surface. Now double that amount and put it under the end of the big level and see where the bubble goes. One thing about using levels of this accuracy, it is important to place them in the same place every time. Plus you're setting on a very compressible surface, which is far from ideal. Fool around with shimming the small one and double the amount for the bigger one and I think you might get the bubbles to agree somewhat. Remember...each division on the big one is equal to ten divisions on the little one. I installed machinery for many years and the only time we used the '199' was on precision machine tools.
So for leveling a 7' Diamond Pro-Am which level would be recommended - the Starrett 98-8 or 98-12?
Keep it cool guys.
My 02...
The tool you are showing looks like it is about 100 years old.
Who certified the calibration on this level?
Is it certified?...............is it even calibrated?
Bubble levels are the one inspection tool that can be self-calibrated. All one needs is a relatively level surface upon which the level is checked against itself on a 180 degree bias.
Calibrating a level is kind of ridiculous, in fact. Any competent user will always check the measurements twice, with the level pointed in opposite directions.
The only thing that can be any sort of problem is the surface of the level, but if I were in the practice of taking measurements on 0.030" thick cloth with a 0.005" level, I would have a custom base made with three hardened steel points which would sit more repeatedly on a soft surface.