# Creating organic shape using loft and guide curve

**URL:** <https://discourse.shapr3d.com/t/creating-organic-shape-using-loft-and-guide-curve/21531>\
**Category:** Modeling Questions\
**Created:** [September 22, 2022, 3:05pm UTC](https://discourse.shapr3d.com/t/creating-organic-shape-using-loft-and-guide-curve/21531 "2022-09-22T15:05:14Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![Hraf](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/hraf/32/17045_2.png) [@Hraf](https://discourse.shapr3d.com/u/Hraf)\
**Post date:** [September 22, 2022, 3:05pm UTC](https://discourse.shapr3d.com/t/creating-organic-shape-using-loft-and-guide-curve/21531/1 "2022-09-22T15:05:14Z")

</div>

Hi!

I’ve tried modeling a shrimp’s carapace using the loft tool combined with a guide curve but I keep getting this error message:

“Fault detected in a guide wire”

Any idea what may be wrong?

Cheers!

---

<div class="post-metadata">

**Author:** ![KPeter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/kpeter/32/7644_2.png) [@KPeter](https://discourse.shapr3d.com/u/KPeter)\
**Post date:** [September 22, 2022, 3:18pm UTC](https://discourse.shapr3d.com/t/creating-organic-shape-using-loft-and-guide-curve/21531/2 "2022-09-22T15:18:26Z")

</div>

Hi, Can you please upload the Shapr3D design? I guess the guides may not intersect properly with the cross sections, but checking the model would help a lot.

---

<div class="post-metadata">

**Author:** ![Hraf](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/hraf/32/17045_2.png) [@Hraf](https://discourse.shapr3d.com/u/Hraf)\
**Post date:** [September 22, 2022, 3:51pm UTC](https://discourse.shapr3d.com/t/creating-organic-shape-using-loft-and-guide-curve/21531/3 "2022-09-22T15:51:59Z")

</div>

I´m not allowed to yet, but here´s an image if that helps:

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/2/1/2191c5307e81cfdd75bee0c125f03d0caf43ebcc.jpeg)

Only just started, but getting problems out of the way quickly helps 🙂

---

<div class="post-metadata">

**Author:** ![KPeter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/kpeter/32/7644_2.png) [@KPeter](https://discourse.shapr3d.com/u/KPeter)\
**Post date:** [September 28, 2022, 3:07pm UTC](https://discourse.shapr3d.com/t/creating-organic-shape-using-loft-and-guide-curve/21531/4 "2022-09-28T15:07:19Z")

</div>

Thanks for the screenshot! There is [another thread](https://discourse.shapr3d.com/t/sweep-errors/21626/2) with the same content, even dough it was started with the sweep tool 😃

When using the guided loft, please make sure to have a closed cross-section at the start and end points of the guide curves. In the other thread, I shared a video that I think could also be helpful for you too.

---

<div class="post-metadata">

**Author:** ![Hraf](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/hraf/32/17045_2.png) [@Hraf](https://discourse.shapr3d.com/u/Hraf)\
**Post date:** [September 28, 2022, 3:23pm UTC](https://discourse.shapr3d.com/t/creating-organic-shape-using-loft-and-guide-curve/21531/5 "2022-09-28T15:23:01Z")

</div>

Thank you! I will have a look 😄