# Boundary issues for sphere

**URL:** <https://community.freefem.org/t/boundary-issues-for-sphere/3547>\
**Category:** General Discussion\
**Created:** [October 15, 2024, 2:56am UTC](https://community.freefem.org/t/boundary-issues-for-sphere/3547 "2024-10-15T02:56:51Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mamun0954](https://avatars.discourse-cdn.com/v4/letter/m/57b2e6/32.png) [@mamun0954](https://community.freefem.org/u/mamun0954)\
**Post date:** [October 15, 2024, 2:56am UTC](https://community.freefem.org/t/boundary-issues-for-sphere/3547/1 "2024-10-15T02:56:51Z")

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Hello everyone  
Good morning. I want to make a 3D boundary-like sphere with two plane sections. I can easily make a sphere, but I cannot make it with two plane sections, as given in the following figure. Actually, I want to make force from c\_1 and c\_2 boundaries in a fracture phase field model. Since I am new to freefem++, please support me if possible. I hope I will find a solution. Thanks all, dear.

 ![IMG_0262](https://canada1.discourse-cdn.com/flex030/uploads/freefem/original/2X/2/2d8cdc3a8a13a615e75dc3557db1a1e4ff096a6c.jpeg)