# Limit before it crashes is 10 nano meters

**URL:** <https://discourse.shapr3d.com/t/limit-before-it-crashes-is-10-nano-meters/13103>\
**Category:** Share your creations\
**Created:** [June 1, 2021, 4:57am UTC](https://discourse.shapr3d.com/t/limit-before-it-crashes-is-10-nano-meters/13103 "2021-06-01T04:57:47Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Enginerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/enginerd/32/10442_2.png) [@Enginerd](https://discourse.shapr3d.com/u/Enginerd)\
**Post date:** [June 1, 2021, 4:57am UTC](https://discourse.shapr3d.com/t/limit-before-it-crashes-is-10-nano-meters/13103/1 "2021-06-01T04:57:47Z")

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Smallest line you can draw is 10.1 nanometers, 10 registers as zero. Lines are halved until 0.000015625 then top most line is 10.1 nanos.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/9/95607005b39e30bfc1ea44ecd1d5a0987d1d3826.jpeg)

How are we supposed to compete with this guy haha.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/c/caabe06aeadcdec47bee39ab7659bdcbf198114a.jpeg)

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**Author:** ![Istvan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/istvan/32/23668_2.png) [@Istvan](https://discourse.shapr3d.com/u/Istvan)\
**Post date:** [June 1, 2021, 9:02am UTC](https://discourse.shapr3d.com/t/limit-before-it-crashes-is-10-nano-meters/13103/2 "2021-06-01T09:02:04Z")

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Double precision floating point numbers can represent ~9 decimal digits precisely, so this is pretty much the limit of the current computational technology the world has 🙂 On the other hand, the actual precision of [Parasolid](https://en.wikipedia.org/wiki/Parasolid) models is typically between 10^-4m and 10^-6m.

But this is clearly just the limit of the calibration, if you want to you can simply say that 1m = 1nm, and then design accordingly. All that matters is the relative precision, which is absolutely stunning: Parasolid achieves this level of precision even for objects that are up to 1km long.

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**Author:** ![Enginerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/enginerd/32/10442_2.png) [@Enginerd](https://discourse.shapr3d.com/u/Enginerd)\
**Post date:** [June 1, 2021, 9:16am UTC](https://discourse.shapr3d.com/t/limit-before-it-crashes-is-10-nano-meters/13103/3 "2021-06-01T09:16:55Z")

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That actually solves my problem haha. Thank god for the metric system.Thanks!