Mini/Maxi Tolerances

2D plans Sizing
1

Hello

I have a question that does not concern the operation of the software, but rather the general rating.

When we put a dimension of the R10 mini type, does it mean that we can have a radius of 20; 30 or more...

Or is the standard tolerance interval of the standard applicable?

Ex:

R10 +/- 0.2 (IT 0.4)  which in R10Mini, would give an R10.4 at the max

or R10 Mini, -> R12, R20 R30 ... Acceptable?

I can't find this detail in the ISO 2768 standards.

If anyone has the info and the standard number specifying it, I'm interested.

Thank you in advance.

 

 

 

2

Hello

R10 mini means that you shouldn't go below 10mm but that above that you are free.

Logically, the person making the piece will get as close as possible, but if you don't indicate a tolerance, they don't have to

 

3 Likes
3

Thank you Ludo.

That's what it seemed to me, but with the machinist we had a discussion that made me doubt,

especially concerning a 0.5x45° maximum chamfer , we found it absurd that the chamfer could be non-existent.