# Design Help - How do I design the red shape so that there is just 1 blade for the center line on the cutter?

**URL:** <https://community.cookiecad.com/t/design-help-how-do-i-design-the-red-shape-so-that-there-is-just-1-blade-for-the-center-line-on-the-cutter/588>\
**Category:** 3D Printing\
**Created:** [December 23, 2021, 4:13am UTC](https://community.cookiecad.com/t/design-help-how-do-i-design-the-red-shape-so-that-there-is-just-1-blade-for-the-center-line-on-the-cutter/588 "2021-12-23T04:13:09Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![sucorra](https://community.cookiecad.com/user_avatar/community.cookiecad.com/sucorra/32/490_2.png) [@sucorra](https://community.cookiecad.com/u/sucorra)\
**Post date:** [December 23, 2021, 4:13am UTC](https://community.cookiecad.com/t/design-help-how-do-i-design-the-red-shape-so-that-there-is-just-1-blade-for-the-center-line-on-the-cutter/588/1 "2021-12-23T04:13:10Z")

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![image](https://community.cookiecad.com/uploads/default/original/1X/5b996bbf7724cf681d2a8aab796a8414a61324d1.jpeg)  
 ![image](https://community.cookiecad.com/uploads/default/original/1X/11174ab744f23a2d3c92c10ed111641dde19e2e6.png)

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**Author:** ![CookiecadNathan](https://community.cookiecad.com/user_avatar/community.cookiecad.com/cookiecadnathan/32/145_2.png) [@CookiecadNathan](https://community.cookiecad.com/u/CookiecadNathan)\
**Post date:** [December 23, 2021, 8:01am UTC](https://community.cookiecad.com/t/design-help-how-do-i-design-the-red-shape-so-that-there-is-just-1-blade-for-the-center-line-on-the-cutter/588/2 "2021-12-23T08:01:28Z")

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It may be a bit of a challenge to get the thickness exactly right but if you make the red part in the center thinner then the two walls will move closer together and merge into one.

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<div class="post-metadata">

**Author:** ![sucorra](https://community.cookiecad.com/user_avatar/community.cookiecad.com/sucorra/32/490_2.png) [@sucorra](https://community.cookiecad.com/u/sucorra)\
**Post date:** [December 23, 2021, 8:55am UTC](https://community.cookiecad.com/t/design-help-how-do-i-design-the-red-shape-so-that-there-is-just-1-blade-for-the-center-line-on-the-cutter/588/3 "2021-12-23T08:55:17Z")

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Thanks - .015 inches seemed to do it for me.

 ![image](https://community.cookiecad.com/uploads/default/original/1X/7d3756aec6f8ed3c50dc062b34e69bd50f80bba2.jpeg)  
 ![image](https://community.cookiecad.com/uploads/default/original/1X/9d9d9c5a9ca105bed0edd8e140327fc1ec3716f0.png)