# Loft - Operation

**URL:** <https://discourse.shapr3d.com/t/loft-operation/30867>\
**Category:** Modeling Questions\
**Created:** [March 19, 2024, 3:17am UTC](https://discourse.shapr3d.com/t/loft-operation/30867 "2024-03-19T03:17:51Z")\
**Posts on this page:** 20\
**Page:** 1

<div class="post-metadata">

**Author:** ![MonaNot](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/monanot/32/25352_2.png) [@MonaNot](https://discourse.shapr3d.com/u/MonaNot)\
**Post date:** [March 19, 2024, 3:17am UTC](https://discourse.shapr3d.com/t/loft-operation/30867/1 "2024-03-19T03:17:51Z")

</div>

I’ve tried a loft with some complex shapes to go around a 90 degree bend. I could not get it to work.  
So to verify that I am understanding this correctly I was able to do a simple loft of a 90 degree tube with round ends … no problem!  
I tried a tube from rectangle to round end and No matter what I try it won’t work!!  
The guide touches both sketches at the purple dot, which by the way is hard to see even on my 30" 4k monitor.  
I’ve deleted this numerous times and recreated this on both my computer and ipad with the same result.

What the heck am I doing wrong? All it tells me is the resulting body wouldn’t be valid.

 ![LoftFailed](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/f/7/f7e75917f3458657e9f17f1557b1752b600dda82.jpeg)

Any help would be appreciated.

---

<div class="post-metadata">

**Author:** ![TigerMike](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/tigermike/32/32650_2.png) [@TigerMike](https://discourse.shapr3d.com/u/TigerMike)\
**Post date:** [March 19, 2024, 4:43am UTC](https://discourse.shapr3d.com/t/loft-operation/30867/2 "2024-03-19T04:43:24Z")

</div>

Here’s a way.

---

<div class="post-metadata">

**Author:** ![MonaNot](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/monanot/32/25352_2.png) [@MonaNot](https://discourse.shapr3d.com/u/MonaNot)\
**Post date:** [March 24, 2024, 9:28pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/3 "2024-03-24T21:28:08Z")

</div>

Hi TigerMike,

I don’t even know how many times I watched your video. Anyway, I’ve tried to follow it step by step which produces the loft but when I press done I get this error.

I really don’t get it. How is this self intersecting??? I’ve deleted and started over with the same result.

I’ve zoomed in and out looking for artifacts thinking it might be the problem but I’m at a loss.

 ![Before_Loft_Done](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/5/e/5e77dcc203a8000a87f55923d3753d9c81df60fc.jpeg)  
 ![After_Loft_Done](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/1/4/14a9a667cbf9d541b3aa7ce38a2d96d6e27337a2.jpeg)

Any suggestions?

Thank you for your help.

Peter

---

<div class="post-metadata">

**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [March 24, 2024, 9:32pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/4 "2024-03-24T21:32:44Z")

</div>

Have you tried deleting the bottom rectangle before you loft? Might be worth a try.

---

<div class="post-metadata">

**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [March 24, 2024, 9:48pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/5 "2024-03-24T21:48:54Z")

</div>

Wanna see something interesting?

---

<div class="post-metadata">

**Author:** ![MonaNot](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/monanot/32/25352_2.png) [@MonaNot](https://discourse.shapr3d.com/u/MonaNot)\
**Post date:** [March 24, 2024, 9:57pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/6 "2024-03-24T21:57:09Z")

</div>

Hi Oregonnerd,

Thanks for the reply. No I haven’t, but what the heck, I’ll give it a shot. I didn’t think it was relevant as I had not selected it.

Peter

---

<div class="post-metadata">

**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [March 24, 2024, 10:00pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/7 "2024-03-24T22:00:14Z")

</div>

> [@MonaNot](#):
>
> Any suggestions?

Can you share your project so I could inspect?

---

<div class="post-metadata">

**Author:** ![TigerMike](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/tigermike/32/32650_2.png) [@TigerMike](https://discourse.shapr3d.com/u/TigerMike)\
**Post date:** [March 24, 2024, 10:05pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/8 "2024-03-24T22:05:22Z")

</div>

Hi Peter,

Not sure what you’re doing that causes the error. Here is my Shapr3D file for you to play with if you like. Per your answer to @Oregonerd’s question, note that I move the square sketch that is within the circle downward and out of the way before I do the **Loft**. Hope this helps. BTW, I’m using the non-parametric version at this time.  
If you are using the parametric version, pay attention to @Xdrakosha’s example.

-Mike

[Loft Exercise.shapr](https://discourse.shapr3d.com/uploads/short-url/iHdtfq1TZsPeHVKW8AXpX5GRQTm.shapr) (17.6 KB)

---

<div class="post-metadata">

**Author:** ![MonaNot](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/monanot/32/25352_2.png) [@MonaNot](https://discourse.shapr3d.com/u/MonaNot)\
**Post date:** [March 24, 2024, 10:07pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/9 "2024-03-24T22:07:45Z")

</div>

Hi Xdrakosha,

Interesting yes, but not particularly useful as my application does not do that.

Peter

---

<div class="post-metadata">

**Author:** ![MonaNot](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/monanot/32/25352_2.png) [@MonaNot](https://discourse.shapr3d.com/u/MonaNot)\
**Post date:** [March 24, 2024, 10:09pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/10 "2024-03-24T22:09:45Z")

</div>

Hi Xdrakosha,

I can send you the shapr file. Not much to it though.

---

<div class="post-metadata">

**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [March 24, 2024, 10:10pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/11 "2024-03-24T22:10:49Z")

</div>

> [@MonaNot](#):
>
> but not particularly useful as my application does not do that

It will very soon. As Istvan stated in a couple of weeks already.

---

<div class="post-metadata">

**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [March 24, 2024, 10:12pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/12 "2024-03-24T22:12:21Z")

</div>

> [@MonaNot](#):
>
> I can send you the shapr file.

If you don’t want to post it here you can send me as a private message here.  
Just want to understand where exactly you’ve made a mistake.

---

<div class="post-metadata">

**Author:** ![MonaNot](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/monanot/32/25352_2.png) [@MonaNot](https://discourse.shapr3d.com/u/MonaNot)\
**Post date:** [March 24, 2024, 10:13pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/13 "2024-03-24T22:13:25Z")

</div>

Thanks Mike.

It could possibly be the idiot behind the keyboard. Here’s my file that doesn’t work.  
[LoftTest.shapr](https://discourse.shapr3d.com/uploads/short-url/kHCFNrDbBIa3zo4W1QhELAhv0T4.shapr) (9.1 KB)  
🙂

Peter

---

<div class="post-metadata">

**Author:** ![MonaNot](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/monanot/32/25352_2.png) [@MonaNot](https://discourse.shapr3d.com/u/MonaNot)\
**Post date:** [March 24, 2024, 10:15pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/14 "2024-03-24T22:15:32Z")

</div>

Hi Xdrakosha,

Here is the file. I’m pretty new with the Shapr3d, so It could just be me (very likely).

[LoftTest.shapr](https://discourse.shapr3d.com/uploads/short-url/kHCFNrDbBIa3zo4W1QhELAhv0T4.shapr) (9.1 KB)

Thanks,  
Peter

---

<div class="post-metadata">

**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [March 24, 2024, 10:23pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/15 "2024-03-24T22:23:46Z")

</div>

> [@MonaNot](#):
>
> Here is the file. I’m pretty new with the Shapr3d, so It could just be me (very likely).

Found the problem. You’ve messed with planes and guides. Making a video.

---

<div class="post-metadata">

**Author:** ![TigerMike](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/tigermike/32/32650_2.png) [@TigerMike](https://discourse.shapr3d.com/u/TigerMike)\
**Post date:** [March 24, 2024, 10:34pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/16 "2024-03-24T22:34:24Z")

</div>

The problem is, you’re square sketch is outside the circle.

---

<div class="post-metadata">

**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [March 24, 2024, 10:36pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/17 "2024-03-24T22:36:55Z")

</div>

> [@TigerMike](#):
>
> The problem is, you’re square sketch is outside the circle.

You’re faster then me 🙂

---

<div class="post-metadata">

**Author:** ![TigerMike](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/tigermike/32/32650_2.png) [@TigerMike](https://discourse.shapr3d.com/u/TigerMike)\
**Post date:** [March 24, 2024, 10:39pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/18 "2024-03-24T22:39:15Z")

</div>

iPad Pro + Apple Pencil…what can i say 🕶

---

<div class="post-metadata">

**Author:** ![MonaNot](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/monanot/32/25352_2.png) [@MonaNot](https://discourse.shapr3d.com/u/MonaNot)\
**Post date:** [March 24, 2024, 10:39pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/19 "2024-03-24T22:39:27Z")

</div>

Hi Mike,

Ok, now I’m really confused. I’ve attempted to open your file and Shapr tells me it needs to be updated.

Simple enough except Shaper tells me it is current and already up to date WT…???

Round and Round we go …reminds me of the early Windows!

 ![VersionAlreadyInstalled](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/7/c/7c3a98b8623ab61850e0b0729f8b46f1dd88449c.jpeg)

I believe mine is the non-parametric as well. I’m not an engineer.

Peter

---

<div class="post-metadata">

**Author:** ![MonaNot](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/monanot/32/25352_2.png) [@MonaNot](https://discourse.shapr3d.com/u/MonaNot)\
**Post date:** [March 24, 2024, 10:43pm UTC](https://discourse.shapr3d.com/t/loft-operation/30867/20 "2024-03-24T22:43:11Z")

</div>

Thanks guys,

Really appreciate the help. I’m going to give it another shot a little later.

Peter

[Next page](https://discourse.shapr3d.com/t/loft-operation/30867.md?page=2)