thx I had seen before but don't refind it : Syndrome of the The Purloined Letter. by. Edgar Allan Poe :D

So If I have good understand
With a "Kilometer" unit "best" maximum precision can be the meter? :)
You say 5000 units max so 2500 "grid section" or admit 5000 "grid section"?
because in previous post you say -5000,+5000
so 2500 kms or 5000 kms with "snap size" 0.001:it is yet not so bad!

Hi Pilou, keep in mind these are just general guidelines to help avoid problems with commands that involve more sensitive calculations. Some commands are less sensitive to it than others. Booleans, Fillets, and Shelling tend to be the most sensitive.


> or admit 5000 "grid section"?

Yeah, I think that would probably be a pretty good limit.

- Michael

< Yeah, I think that would probably be a pretty good limit.
So a square surface of 10 000 kms with a precison of meters
(with Snap Size 0.001 and 3 decimal point in the barre bottom---> (or a precision of 1/ 10 000 000 with no unity):)
It's not so bad!)

Hmmm, setting snap size to 0.001 might not work very well. Since that is the fitting tolerance, basically you don't want to create curvy details that are at that size - that's sort of more the lower limit.

Setting snap size to 0.001 might encourage you to draw details that are around that same size... So something like 0.01 for the lowest snap size would probably be better.

It's even better yet to create objects that are not so near to these limits at all... I almost didn't want to include kilometers or miles as units at all because they kind of encourage pushing things to larger or smaller numeric values like you're talking about.

- Michael

Of course!
But you can if you want insert precise measures (even in kilometers with the 3 décimal in the tool barre box or read it under the mouse movement! :)
Not obliged but a possibility :)
Sure at this scale 0.001 precision is an hard work on the Mouse wheel :D
And "snapping" is only good on the helpers and curve's points not on the grid itself!