# Random lines on a object

**URL:** <https://discourse.shapr3d.com/t/random-lines-on-a-object/27588>\
**Category:** Modeling Questions\
**Created:** [August 28, 2023, 11:03pm UTC](https://discourse.shapr3d.com/t/random-lines-on-a-object/27588 "2023-08-28T23:03:57Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Brandon1](https://avatars.discourse-cdn.com/v4/letter/b/ea666f/32.png) [@Brandon1](https://discourse.shapr3d.com/u/Brandon1)\
**Post date:** [August 28, 2023, 11:03pm UTC](https://discourse.shapr3d.com/t/random-lines-on-a-object/27588/1 "2023-08-28T23:03:57Z")

</div>

I’ve created a model and there are some lines that I guess have appeared when extruding parts of the walls, there minor but are throwing off the 3D print and hitting the delete key on them don’t remove them.

 ![Screenshot (2)](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/d/e/dede5e28defaba00634e0fd2a66c577f862d09fe.jpeg)

---

<div class="post-metadata">

**Author:** ![PEC](https://avatars.discourse-cdn.com/v4/letter/p/67e7ee/32.png) [@PEC](https://discourse.shapr3d.com/u/PEC)\
**Post date:** [August 29, 2023, 11:38am UTC](https://discourse.shapr3d.com/t/random-lines-on-a-object/27588/2 "2023-08-29T11:38:59Z")

</div>

Hi,

have you tried _replace face_ ? The lines suggest that the faces are not parallel or not at the same height.

[https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/4/7/47584efb366badfaf57a59857faf88673885881a.mp4](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/4/7/47584efb366badfaf57a59857faf88673885881a.mp4)

---

<div class="post-metadata">

**Author:** ![Brandon1](https://avatars.discourse-cdn.com/v4/letter/b/ea666f/32.png) [@Brandon1](https://discourse.shapr3d.com/u/Brandon1)\
**Post date:** [August 29, 2023, 1:43pm UTC](https://discourse.shapr3d.com/t/random-lines-on-a-object/27588/3 "2023-08-29T13:43:46Z")

</div>

Thankyou, this has worked.