Thanks for all the responses: This was a solid discussion and i learned alot.
Here is what we went with: + or - .005" for the thickness (our title block tolerance) and a note that says "VARIATION OF THICKNESS NOT TO EXCEED .0002" the people Blanchard grinding this plate were cool with that, as...
I don't really care if the part is flat at all, heck this thing can look like a rainbow, and it will flatten out when I bolt it down. Its the thickness at each individual cross section of the part that I care about.
This thing is bolted down with Qty 20, M12 Bolts to a theoretically perfectly flat machine frame. The only thing i care about is that the thickness of the plate at any possible point you could measure it's thickness at is + or - .005mm from any other point. so the plate's thinnest part and the...
[–]svereundersteer[S] 1 point 4 minutes ago
So I want to control the consistency of the thickness of this large metal plate. I don't actually care about the dimension of the thickness, or the parallelism of the part. 9 of us engineers have no ideas and we even hired a GD&T expert to consult us...
