# Cannot draw arch line

**URL:** <https://forums.sketchup.com/t/cannot-draw-arch-line/323142>\
**Category:** Pro\
**Created:** [April 12, 2025, 8:01pm UTC](https://forums.sketchup.com/t/cannot-draw-arch-line/323142 "2025-04-12T20:01:04Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![gustav](https://avatars.discourse-cdn.com/v4/letter/g/919ad9/32.png) [@gustav](https://forums.sketchup.com/u/gustav)\
**Post date:** [April 12, 2025, 8:01pm UTC](https://forums.sketchup.com/t/cannot-draw-arch-line/323142/1 "2025-04-12T20:01:04Z")

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Hi, having huge problems creating an arch and cannot understand why…

Project file: [https://www.dropbox.com/scl/fi/89wtsz38n99hogrvxy47j/Arch.skp?rlkey=m0i8aigzqapv8y95ubzikpqgj&st=3f4mh11h&dl=0](https://www.dropbox.com/scl/fi/89wtsz38n99hogrvxy47j/Arch.skp?rlkey=m0i8aigzqapv8y95ubzikpqgj&st=3f4mh11h&dl=0)

Screenrecording: [https://www.dropbox.com/scl/fi/sg6vrj2mxoksv9nigraq9/SketchUp-2025.mp4?rlkey=qcsx9p8lvk8yb3v3ybtal1m5j&st=m14xwadl&dl=0](https://www.dropbox.com/scl/fi/sg6vrj2mxoksv9nigraq9/SketchUp-2025.mp4?rlkey=qcsx9p8lvk8yb3v3ybtal1m5j&st=m14xwadl&dl=0)

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**Author:** ![DaveR](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/daver/32/7601_2.png) [@DaveR](https://forums.sketchup.com/u/DaveR)\
**Post date:** [April 12, 2025, 8:17pm UTC](https://forums.sketchup.com/t/cannot-draw-arch-line/323142/2 "2025-04-12T20:17:18Z")

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Is this what you want to achieve?

 ![Screenshot - 4_12_2025 , 3_13_32 PM](https://global.discourse-cdn.com/sketchup/original/3X/5/f/5f458333c5ab1ad6b32af6efa7949de6b4aad014.png)

The chord of the arc is so short that even a default 12-sided arc has too many sides. Reduce it to 4 sides before drawing it and it’ll work.

What are you modeling and how will it be used? Perhaps it would help if you scale the model up by a factor of 100 or 1000. Or use the “[Dave Method](https://forums.sketchup.com/t/the-dave-method/49720)”.

You would also find it easier to draw the entire shape if you draw it on a large rectangle so you can keep everything on the same plane.
