# Curved triangle

**URL:** <https://discourse.shapr3d.com/t/curved-triangle/2347>\
**Category:** Modeling Questions\
**Created:** [May 8, 2018, 12:32am UTC](https://discourse.shapr3d.com/t/curved-triangle/2347 "2018-05-08T00:32:16Z")\
**Posts on this page:** 17\
**Page:** 1

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**Author:** ![Proprash](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/proprash/32/1820_2.png) [@Proprash](https://discourse.shapr3d.com/u/Proprash)\
**Post date:** [May 8, 2018, 12:32am UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/1 "2018-05-08T00:32:17Z")

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How can I make a cureved triangle that is curved at only one axis? Apologies for my sketching. Sketch attached. ![875247A8-3519-4CFA-8DE3-B2D35B79C4C1](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/2X/8/8ee4df305391b1643739d4b9baafe45c3166bd76.jpg)

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**Author:** ![Istvan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/istvan/32/23668_2.png) [@Istvan](https://discourse.shapr3d.com/u/Istvan)\
**Post date:** [May 8, 2018, 12:39am UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/2 "2018-05-08T00:39:39Z")

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I am not sure if I understand correctly, but I think you want to make a sweep: [https://support.shapr3d.com/hc/en-us/articles/115001415034-Sweep?mobile\_site=true](https://support.shapr3d.com/hc/en-us/articles/115001415034-Sweep?mobile_site=true)

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**Author:** ![tommyn](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/tommyn/32/1714_2.png) [@tommyn](https://discourse.shapr3d.com/u/tommyn)\
**Post date:** [May 8, 2018, 2:31am UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/3 "2018-05-08T02:31:07Z")

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It would seem to me that one should see the apex and sides of triangle in the Bottom view. Otherwise it seems like an impossible figure?

![A11A6E78-379A-4C02-B241-E8CE2B0144EB](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/2X/f/ff64e3de08fe64dfc4a4b7093bc0d7dfe0b8ab38.jpeg)

Not sure what the rear view would look like without attempting to draw…

Best,

Tommy

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**Author:** ![tommyn](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/tommyn/32/1714_2.png) [@tommyn](https://discourse.shapr3d.com/u/tommyn)\
**Post date:** [May 8, 2018, 2:39am UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/4 "2018-05-08T02:39:20Z")

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After thinking about this a bit, you could start with an A-Frame solid and add/subtract an appropriate part of a sphere. But I doubt that you will get straight lines at the intersections…

This would not match exactly match your sketch…

Best,

Tommy

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**Author:** ![Proprash](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/proprash/32/1820_2.png) [@Proprash](https://discourse.shapr3d.com/u/Proprash)\
**Post date:** [May 8, 2018, 3:40am UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/5 "2018-05-08T03:40:44Z")

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@Istvan thank you for your reply but I am not sure if Sweep tool will help me with this.

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**Author:** ![Mif](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/mif/32/1860_2.png) [@Mif](https://discourse.shapr3d.com/u/Mif)\
**Post date:** [May 9, 2018, 11:17am UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/6 "2018-05-09T11:17:38Z")

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![181CCAAB-4216-4F9E-A797-02825771EC3B](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/2/20fc6837446f236940349e85b1e8d986cf98057d.jpeg)\* 1. List item

> Hi, Proprash, i was able to draw this by extruding a thick triangle, creating 2 big cylinders, overlapping and then subtracting the cylinders so that the remaining cylinder (crecent moon from top view), has a convex and concave wall of the same radius. I then used the replace face tool to replace one flat wall of the triangle with the convex wall of the cylinder. For some reason I couldn’t get replace face to work with the concave wall of the cylinder, so I tried the subtraction tool and it worked.  
> Sorry, I just noticed that the bottom edges of the triangle aren’t on radius. I’ll try it again😙

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**Author:** ![Mif](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/mif/32/1860_2.png) [@Mif](https://discourse.shapr3d.com/u/Mif)\
**Post date:** [May 9, 2018, 12:20pm UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/7 "2018-05-09T12:20:22Z")

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OK I think I got it this. Good luck!

Give me a sec I’m just Remembering the photos they don’t load in the proper order. So make sure you view them based on the number I assigned as opposed to how you see them.

![image](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/2X/7/79cf5cde9fac32e714033804e63c3d0a862cb963.jpeg) ![image](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/2X/a/a208b4780710433d26b72d2f615aa08e3910e5ca.jpeg) ![image](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/2X/6/6d74d7479fcc6d8fe8fb915da376c0a571233e5b.jpeg) ![image](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/2X/5/53438c143f0c3eb86fab828ffcc244d514927a26.jpeg) ![image](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/2X/f/fd23037f4d972859ed5940e4449ee4b79540295f.jpeg) ![image](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/2X/0/0b0665fa91b7771077941c3efbde5a92559d25b5.jpeg) ![image](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/2X/2/24825748a4ffe139fd648f08eccfe2a7bdd5d425.jpeg) ![image](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/2X/c/c1b6b196e5b59d1fe36c578e67609c10789957b7.jpeg) ![image](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/2X/b/b3e1ad55226a6fe1bce3792e8df181600076f4f3.jpeg) ![image](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/2X/9/95034ed398ca867bf4c86158ded95a6de2aed222.jpeg) ![image](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/2X/2/23e2ced874c674f56b885229c0907469551aa4bc.jpeg)

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<div class="post-metadata">

**Author:** ![Proprash](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/proprash/32/1820_2.png) [@Proprash](https://discourse.shapr3d.com/u/Proprash)\
**Post date:** [May 9, 2018, 12:40pm UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/8 "2018-05-09T12:40:02Z")

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Thank you @Mif. This is exactly what I was looking for. Thank you for your help!

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**Author:** ![uber.geek](https://avatars.discourse-cdn.com/v4/letter/u/b782af/32.png) [@uber.geek](https://discourse.shapr3d.com/u/uber.geek)\
**Post date:** [May 16, 2018, 6:43am UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/9 "2018-05-16T06:43:12Z")

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I made a video with the approach I would take on this:

[https://www.icloud.com/iclouddrive/0KT2ZWJCaci5moDJMzha4-tGQ#Shapr-CurvedTriangle](https://www.icloud.com/iclouddrive/0KT2ZWJCaci5moDJMzha4-tGQ#Shapr-CurvedTriangle)

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**Author:** ![uber.geek](https://avatars.discourse-cdn.com/v4/letter/u/b782af/32.png) [@uber.geek](https://discourse.shapr3d.com/u/uber.geek)\
**Post date:** [May 16, 2018, 6:45am UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/10 "2018-05-16T06:45:29Z")

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Looking back at the original post, I realize I made the same mistake of not having the bottom edges slant toward the origin point. I can think of a few ways to address this, it I’m going to bed for the time being!

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**Author:** ![uber.geek](https://avatars.discourse-cdn.com/v4/letter/u/b782af/32.png) [@uber.geek](https://discourse.shapr3d.com/u/uber.geek)\
**Post date:** [May 16, 2018, 6:47am UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/11 "2018-05-16T06:47:54Z")

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Which app do you guys use to make your video tutorials? (For the way it highlights the Pencil tap locations, for instance)

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**Author:** ![Zoli](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/zoli/32/592_2.png) [@Zoli](https://discourse.shapr3d.com/u/Zoli)\
**Post date:** [May 16, 2018, 1:19pm UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/12 "2018-05-16T13:19:47Z")

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We use iOS built-in screen recorder. We have developed a mode to highlight interactions (fingers and pencil). You can turn this on in your iPad settings, under Shapr3D: ![tutorial%20mode](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/2X/0/024ba48d45465348ba84a9f8c3e181c40fa60869.jpg)

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<div class="post-metadata">

**Author:** ![uber.geek](https://avatars.discourse-cdn.com/v4/letter/u/b782af/32.png) [@uber.geek](https://discourse.shapr3d.com/u/uber.geek)\
**Post date:** [May 16, 2018, 1:21pm UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/13 "2018-05-16T13:21:20Z")

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Fantastic!

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**Author:** ![Chayanne](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/chayanne/32/8789_2.png) [@Chayanne](https://discourse.shapr3d.com/u/Chayanne)\
**Post date:** [May 19, 2018, 10:45am UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/14 "2018-05-19T10:45:04Z")

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**Author:** ![tommyn](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/tommyn/32/1714_2.png) [@tommyn](https://discourse.shapr3d.com/u/tommyn)\
**Post date:** [May 19, 2018, 2:55pm UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/15 "2018-05-19T14:55:10Z")

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Very elegant solution!

Best,

Tommy

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<div class="post-metadata">

**Author:** ![uber.geek](https://avatars.discourse-cdn.com/v4/letter/u/b782af/32.png) [@uber.geek](https://discourse.shapr3d.com/u/uber.geek)\
**Post date:** [May 21, 2018, 8:39pm UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/16 "2018-05-21T20:39:33Z")

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I like seeing different approaches like this. It helps me think outside the box. However, this solution suffers the same problem as mine, with the shape of the edges

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**Author:** ![Proprash](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/proprash/32/1820_2.png) [@Proprash](https://discourse.shapr3d.com/u/Proprash)\
**Post date:** [July 5, 2018, 2:36pm UTC](https://discourse.shapr3d.com/t/curved-triangle/2347/17 "2018-07-05T14:36:32Z")

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Thank you everyone for great suggestions and solutions.