# Perpendicular geometry in drawing

**URL:** <https://discourse.shapr3d.com/t/perpendicular-geometry-in-drawing/19856>\
**Category:** Modeling Questions\
**Created:** [June 14, 2022, 2:57pm UTC](https://discourse.shapr3d.com/t/perpendicular-geometry-in-drawing/19856 "2022-06-14T14:57:10Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![bertvh](https://avatars.discourse-cdn.com/v4/letter/b/b5e925/32.png) [@bertvh](https://discourse.shapr3d.com/u/bertvh)\
**Post date:** [June 14, 2022, 2:57pm UTC](https://discourse.shapr3d.com/t/perpendicular-geometry-in-drawing/19856/1 "2022-06-14T14:57:10Z")

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Hi,

I’ve got a design with lots of angles. In a drawing, I often don’t have the necessary lines from the design to dimension angles the way I would like. This leads to awkward dimensions that aren’t practical.

A huge help would be the ability to add a drawing line perpendicular to a line in a point. See illustration below.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/3/3297a1692673a8b6b8bfe4b3a15b3da85b03f352.jpeg)

Cheers.

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<div class="post-metadata">

**Author:** ![bertvh](https://avatars.discourse-cdn.com/v4/letter/b/b5e925/32.png) [@bertvh](https://discourse.shapr3d.com/u/bertvh)\
**Post date:** [June 14, 2022, 8:47pm UTC](https://discourse.shapr3d.com/t/perpendicular-geometry-in-drawing/19856/3 "2022-06-14T20:47:46Z")

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Thanks for the effort!

I know this is possible in an sketch. However, a was talking about the ‘2D drawing’ space. So, adding dimensions for printing. The options in a 2D drawing are much more limited than sketches.

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<div class="post-metadata">

**Author:** ![welshsteve](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/welshsteve/32/16111_2.png) [@welshsteve](https://discourse.shapr3d.com/u/welshsteve)\
**Post date:** [June 14, 2022, 8:50pm UTC](https://discourse.shapr3d.com/t/perpendicular-geometry-in-drawing/19856/4 "2022-06-14T20:50:54Z")

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Aha, I didn’t realise you were referring to the 2D drawings.

I was about to replace the video with an updated version as I had made a small typo but I guess there is no need now after your reply.

Until this feature is added there is a quick workaround you could use for critical dimensions.

Here, I added a body of nominal width to the model before exporting as a 2D drawing so that I could use it as a reference from which to measure…

 ![Temporary Body for Dimensioning](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/8/81246fb4aedc721cb990b76acaf065cb9f492198.jpeg)

This can be used when exporting as a 2D drawing then hidden later.

 ![Perpendiclar](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/2/228ea3532171a2b5325c1e75eeae030380e6e923.jpeg)