How do I make 3.125m parts in Blender?

[Bottle Rocketeer 500]

How can I make 3.125 m parts in Blender? The radius would have more decimal places than Blender can handle. Does anyone have a solution?

[DrLicor]

While scaling or making a new part, can't you just type a factor with more than 2 decimals? For instance, make a 2.0m part, rescale this with a factor of 1.5625. 

Edited November 7, 2017 by DrLicor

[Delay]

I think it only visually rounds but still uses the correct numbers. I've seen Blender go past four decimal places, so three shouldn't be a problem anyway.

[Bottle Rocketeer 500]

6 hours ago, Delay said:

I think it only visually rounds but still uses the correct numbers. I've seen Blender go past four decimal places, so three shouldn't be a problem anyway.

OK, I'll try. Thanks!

[Shadowmage]

22 hours ago, Bottle Rocketeer 500 said:

OK, I'll try. Thanks!

Indeed, I regularly use 4+ decimals when specifying a mesh size.  It maintains far more accuracy than is displayed in the UI.  I would wager that from a technical perspective it is using 32-bit floating point, which should give ~7 digits of precision (total digits, not just decimal digits; e.g. 3.125 is 4-digits of precision, you could specify 3.125125 and it should still maintain accuracy, though it would only display the first couple of digits).