# Surface build, join and smooth it

**URL:** <https://discourse.mcneel.com/t/surface-build-join-and-smooth-it/131458>\
**Category:** Rhino for Windows\
**Tags:** windows, surface, rhino7, smooth\
**Created:** [October 11, 2021, 5:54am UTC](https://discourse.mcneel.com/t/surface-build-join-and-smooth-it/131458 "2021-10-11T05:54:02Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jackhui328](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/jackhui328/32/613491_2.png) [@jackhui328](https://discourse.mcneel.com/u/jackhui328)\
**Post date:** [October 11, 2021, 5:54am UTC](https://discourse.mcneel.com/t/surface-build-join-and-smooth-it/131458/1 "2021-10-11T05:54:02Z")

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![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/5/b/f/5bfa829a87b5496411f051a11ccca619639f4337.png)  
 ![Screenshot (47)_LI](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/a/9/1/a91f305499b351909f7511ab44a07664f66e752f.jpeg)

Basically, The dark circle is not smooth enough and the red circle is not able to merge together even the edges is splitted at that joint. Please help me out.

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**Author:** ![wim](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/wim/32/747482_2.png) [@wim](https://discourse.mcneel.com/u/wim)\
**Post date:** [October 11, 2021, 7:56am UTC](https://discourse.mcneel.com/t/surface-build-join-and-smooth-it/131458/2 "2021-10-11T07:56:12Z")

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Hi Jack -

> [@jackhui328](#):
>
> Please help me out.

There is not much people can do to help you with just two screenshots. Please upload the 3dm file.  
-wim