custumizable seedling cup holder.
thingiverse
this is to hold seedling cups made from empty paper towel rolls. it can also be used as standalone seedling trays. inner diameter and number of cups (rows and columns are customizable) [view in cadhub](https://cadhub.xyz/dev-ide/openScad#fetch_text_v1=https://github.com/angryseptagon/random_openscad_creations_I_made/blob/main/cupgrid.scad)
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