We had this “Perfect tea timer” with sand timers for 3, 4, and 5 minutes. The timers work great but the metal case (which held the timers by friction only) eventually fell apart. I designed and printed this replacement.

Build instructions

• Print one Tea timer column.stl, on its side.
• Print two Tea timer base.stl, with the three inset circles facing the bed.
• Insert two 4.6 mm outer diameter M3 heat set inserts into the ends of the column.
• Assemble using M3 × 8mm countersunk screws.