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enter image description hereIs it possible to make the outer circumference of the tire smaller. So that the height of the tire becomes lower, but the inner size (rim size) remains the same.

enter image description here

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  • $\begingroup$ Basically, yes. The job here is entirely getting the tire aligned with an axis (probably already is), and then selecting the outer geometry. After that, you can use the scale tool along just two axes instead of three. Can you add a screenshot of the tire in edit mode? $\endgroup$
    – TheLabCat
    May 2 at 13:15
  • $\begingroup$ Ok. That is wcs topology for this, but if you turn on wireframe mode… $\endgroup$
    – TheLabCat
    May 2 at 16:35
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This is easy using proportional editing and the scale tool.

  1. Go into an orthographic view that shows the tire from the front (it would roll towards the camera).
  2. Set viewing mode to wireframe, with ghost mode on.
  3. Use Border Select, Ctrl+B, to select the entire tread area of the tire.
  4. Switch to the scale tool.
  5. Scale along the desired plane (the two axes that are not the axle axes). The sides of the tire WILL NOT FOLLOW yet.
  6. Go to the Adjust Last Operation area in the bottom right of the 3D View, and turn on Proportional Editing. Set the size to something just under the former distance between the tire treads and the part that contacts the wheel.
  7. The walls of the tire should gradually tighten towards the treads, but stay mostly the same towards the wheel.
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  • $\begingroup$ Thanks ! It was quite a job, but it works. $\endgroup$
    – MIck
    May 5 at 9:22
  • $\begingroup$ @MIck Yay 😊! Glad it worked, TYJ. $\endgroup$
    – TheLabCat
    May 5 at 11:53

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