10 thousandths! That is 0.0001. That is smaller than a human hair. How do you measure that? I worked in precison machining in QC and we had to use highly accurate micrometers,etc. I'm wondering how you could even see a sag that small? Could you please explain in some detail?

 

Hey all. seems that some have problems with fractions and decimals.
If I may try to explain.

Fractions = Decimals
1 = 1
1/2 = 0.5
1/4 = 0.25
3/4 = 0.75
1/10 = 0.1
2/10 = 1/5 = 0.2
1/100 = 0.01
1/1000 = 0.001
10/1000 = 1/100 = 0.01
100/1000 = 1/10 = 0.1(000) 0 after digit has no meaning on this side of a decimal point.

Another thing that may confuse is that over here in EU we use Comma (,) as decimal point where US uses period (.)
US 10,000.5 and EU 10.000,5

Best regards
Leif

 

I've seen it mentioned here that a very slight concavity, in the top, is actually a good thing; I'm still not clear why. But I can sure see why a slight bulge would be undesirable.

 

Welcome to the forum, Joseph.

I do not see about 10,000th of an inch as a problem?

 

Joseph, your table is fine at that spec.

Dan, you got that backwards. Concave means the center of your cut will be shallow. Slightly convex means the cut will be a consistent depth. The patented Rousseau mounting plate is slightly convex and will work great for most people. All other plates should be as flat as possible.

 

Thanks for clarifying that, Mike. That certainly makes more sense.

 

Some time ago I paid the princely sum of $3.00 for a bench top router table that turned out to be so out of flat that no instruments were needed to tell me so. This shot shows how I rectified the problem.

 

WOW, 0.0001 sure not much. Are you sure of that measurement ?

 

I think he meant ten thousandths...(.0100).

Which is also 100 ten thousandths.

 

Even so Harrison the table top is fine.