Desk trash catcher with flip lids A desk-side bin for pencil shavings, wrappers and sticky-note scrap, with a 130 x 95 mm top opening and 120 mm tapered walls. Flip either lid up on its snap-in corner pins to toss something in, then let both drop shut so the mess stays hidden. Prints as three parts: body, lid_a and lid_b.

Twin lids on snap-in pins. Two lids, Lid A and Lid B, hinge on opposite long edges and meet at the centerline with a 2.0 mm running gap. Each swings on 4 mm pins that drop into the four rim corner tabs through a 3.4 mm side slot, so they snap in and stay put without hardware.

Tapered, corrugated shell. The body tapers 6 degrees on all four sides, from a 130 by 95 mm top opening down over a 120 mm wall span, with a 2.4 mm shell and a 3.0 mm floor. Vertical grooves 1.0 mm deep at 12 mm pitch read as corrugation; the end walls carry a recessed panel.

Three parts, print-ready. Three printed parts: body.stl, lid_a.stl and lid_b.stl. Wall thickness is set to 2.4 mm for six 0.4 mm perimeters, and 1.0 mm chamfers at the rim plus 0.6 mm at the bed edge keep the print clean. Four 10 mm square feet, 5 mm tall, raise the base.