how to weaken support?
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Very dense hard to separate
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The main settings you want to play with are pattern spacing and air gap. The larger the pattern spacing, the farther the support lines will be from each other and the less dense it will be. Air gap is the distance between the top of the support and the bottom of the print. Increase this to make it easier to break off. You may also want to turn off create perimeter to make it easier to pull the support apart.