# Cogwheel

**URL:** https://discourse.vtk.org/t/cogwheel/8119
**Category:** Web
**Created:** [March 23, 2022, 9:51am UTC](https://discourse.vtk.org/t/cogwheel/8119 "2022-03-23T09:51:08Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![bernland](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/b/b19c9b/32.png) [@bernland](https://discourse.vtk.org/u/bernland)
#### Post date: [March 23, 2022, 9:51am UTC](https://discourse.vtk.org/t/cogwheel/8119/1 "2022-03-23T09:51:08Z")

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I created disks with an image texture using `vtkConcentricCylinderSource`:

 ![Image Pasted at 2022-3-23 10-14](https://discourse.vtk.org/uploads/default/original/2X/d/d418868ab80e0492d1cb1c7c31489d1c9562d7a7.png)

What is the best approach to add inner and outer toothing?  
 ![Toothing](https://discourse.vtk.org/uploads/default/original/2X/a/a274d239cfce3780f8b0427ea564c687923a63db.png)

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### Author: ![Forrest](https://discourse.vtk.org/user_avatar/discourse.vtk.org/forrest/32/300_2.png) [@Forrest](https://discourse.vtk.org/u/Forrest)
#### Post date: [March 23, 2022, 2:57pm UTC](https://discourse.vtk.org/t/cogwheel/8119/2 "2022-03-23T14:57:42Z")

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I would suggest potentially making a copy of the ConcentricCylinderSource, and modifying it to integrate a teeth generation algorithm as the ConcentricCylinderSource goes around the circle.