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Crazy curve question

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Laser
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2023-06-29

I am designing a O scale sidewalk for a slot car track. I had a finished product, but, alas, things change. I want to extend my sidewalk per the outline in the pic a few inches or cm. I would like to outside or the sidewalk to follow the circumference of the track until it terminates. The track is a 90 degree turn. I have no clue how to start the math or even where to ask about starting the math to curve my larger rectangular perimeter stones to follow the track. Thoughts? Thinking? Sorry about my crude drawing. The sidewalk will follow straight up on the right and then curve to the left on the left side until it terminates.

C

    • Cyril

      2023-06-30
      Here’s an idea.

Instead of focusing on only the small extended portion imagine drawing a shape that goes around the entire curved portion of the track. You can later remove the portions you don’t need
Draw a straight line that matches the current straight portion of the existing sidewalk
Draw a perpendicular straight line on the other side of the curve so that there’s now just a gap between the straight lines where the curve would need to be. Measure the distances between the sides as required.
Draw a rectangle where two of the sides match and are overlapped with the straight lines drawn earlier.
Use the radius tool to create a curve on the corner of the rectangle where the two straight lines need to be joined
Keep adjusting the radius until the curve matches to the ends of the straight lines. This should now leave you with the appropriatesly sized curve.
Use offset tool set to the width of the sidewalk. This should now give you a curved sidwalk shape.
Trim sidewalk shape to only the portion required for your model
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