Propolis Trap Lab (2D) | mysimulator.uk

Trap Setup

Trap gap width 4.5 mm

Colony sealing activity 5

Trap temperature 18°C

Live Readout

Bee-space threshold

~6 mm

Cells sealed

0/0

Propolis state

—

Harvested

0.0 g

Foragers depositing

FPS

—

How it works

This top-down 2D companion drives the same rule as the 3D propolis trap: a cell on the slotted screen is active (worth sealing) once its gap falls below the ~6 mm bee-space threshold. The active fraction of the grid scales smoothly with the gap slider and activates from the centre of the screen outward, matching the 3D radial-fill order:

active_fraction = clamp(1 - (gap_mm - 2) / 9, 0.03, 1)
fill(cell) += activity * 0.045 * dt   while a bee is on the cell
brittle = clamp((4 - temp_C) / 24, 0.04, 0.97)
released = fill * brittle * random(0.7, 1.2)
harvested_g += released * 4.2

Trap gap width — narrower slots recruit more of the screen; the highlighted cells are the ones bees will actively seal right now.
Colony sealing activity — how fast the wandering foragers deposit resin once they land on an active cell.
Trap temperature — warm propolis is soft, glossy and sticky (poor flake yield); cold propolis is dark and brittle and shatters cleanly when the trap flexes.
❄ Chill & flex trap — releases each cell's accumulated fill as flakes flying into the collection tray, scaled by the brittleness formula above.

Active cell (below bee-space) Deposited propolis Forager bee