# Freeform with straight lines possible? Tetrahedon

**URL:** <https://discourse.shapr3d.com/t/freeform-with-straight-lines-possible-tetrahedon/1137>\
**Category:** Modeling Questions\
**Created:** [June 24, 2017, 12:27pm UTC](https://discourse.shapr3d.com/t/freeform-with-straight-lines-possible-tetrahedon/1137 "2017-06-24T12:27:15Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Florian](https://avatars.discourse-cdn.com/v4/letter/f/898d66/32.png) [@Florian](https://discourse.shapr3d.com/u/Florian)\
**Post date:** [June 24, 2017, 12:27pm UTC](https://discourse.shapr3d.com/t/freeform-with-straight-lines-possible-tetrahedon/1137/1 "2017-06-24T12:27:15Z")

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Hi Istvan!  
First, I have to say your app is killer good!!!  
Now to my question - is it possible to also work with straight lines with the freeform tool?

I would like to build a uneven (rather flat) tetrahedon - I just can’t figure out how to do that?  
I saw a small tutorial on how to build a pyramid but thats not quite the same!

Would be great if you could help?!

Nice greetings,  
Florian

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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:** [June 24, 2017, 12:46pm UTC](https://discourse.shapr3d.com/t/freeform-with-straight-lines-possible-tetrahedon/1137/2 "2017-06-24T12:46:51Z")

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Currently it is not, but we are working on major improvements on the freeform surface tool.

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**Author:** ![Florian](https://avatars.discourse-cdn.com/v4/letter/f/898d66/32.png) [@Florian](https://discourse.shapr3d.com/u/Florian)\
**Post date:** [June 24, 2017, 2:33pm UTC](https://discourse.shapr3d.com/t/freeform-with-straight-lines-possible-tetrahedon/1137/3 "2017-06-24T14:33:21Z")

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Thanks ver much for quick reply!!  
This is the deboss shape that I want to imprint (substract) from a cube for instance.

It would be great if you I could draw the basic contruction and the select the three  
lines that meet in the middle of the triangles and then just pull them down…

Nice greetings, Florian

![](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/1X/f01a312bf6dd5250bc1be2cf21e4e70c42d4e3e7.jpg)