"No Spill Bill" Slide-On Campervan Cup Holder for 12/15/18 mm Ply – No Screws, No Supports

A cup holder that simply slides over the edge of a plywood wall or cabinet side: no screws, no holes. It takes Ø80 mm cups, and a drop-in ring holds Ø65 mm cans. "NO SPILL / BILL" is raised on the front. ✦ WHAT YOU GET • 3 holders as STL, for 12, 15 and 18 mm plywood • Can insert (STL) • 3MF project with all 4 parts • README with print and assembly notes (metric + imperial) ✦ SIZE • Cups up to Ø80 mm / 3.15 in (bore Ø82 mm / 3.23 in); can insert for Ø65 mm / 2.56 in cans • Holder 90 × 113–119 ×…

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