Printing note: Print the included test profile first, since the small gaps and tabs are sensitive to printer, filament, nozzle, and slicer settings. In my testing, PLA Matte and regular Bambu PLA both worked best with Thin Walls / Detect Thin Walls disabled. Use the test piece to find the gap/tab combination that works best on your setup.

A 3D printable punch-out calendar/tracker with a parametric grid of retained cells. Each cell is held in place by small tabs so it can be pushed through to mark a day, track progress, or count down toward a goal. It offers a simple, tactile alternative to writing on a calendar or using a digital checklist.

Great for habit tracking, countdowns, challenge calendars, daily goals, or task completion.

If you print it, a quick comment or note about what worked for your setup may help others get better results too.