What technique is recommended to precisely mark planet positions in a tabletop model meant to accurately reflect relative distances?

Answer

Using a long, straight piece of string anchored at the Sun's center.

To prevent cumulative measurement errors in a distance-focused tabletop model, it is practical to use a straight piece of string anchored at the Sun to accurately measure and mark the required placement for each subsequent planet.

What technique is recommended to precisely mark planet positions in a tabletop model meant to accurately reflect relative distances?

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