Pen cup with sloped compartments
A desk pen holder divided into three angled compartments so pens, markers and scissors each lean forward and stay easy to grab. Compartments are 40, 55 and 70 mm tall, tilted 10 degrees, with 1.6 mm walls, a 4 mm base and 3 mm fillets on the rims. Small holes in the floor let pencil shavings fall through, and a 30 mm recessed circle under the base accepts a disc of felt or a magnet. It prints upright without supports.
Cups from a file library assume you own the same pens as their author. In SpeakCAD, mention that you keep tall paintbrushes or bulky highlighters and the compartments adapt to hold them, all previewable in the browser for free. Reshape the layout in the chat as many times as you like, then download the STL when it feels right.
Create a pen cup on a 110 x 80 mm footprint with three compartments 40, 55 and 70 mm tall, each tilted forward 10 degrees, 1.6 mm walls, 4 mm base with 5 mm drain holes, and a 30 mm diameter recess in the underside for a felt pad.