Grinder Residue Tray - Magnetic Attachment - (Residue Solution)

My grinder is a Mahlkonig EK43, modified with a direct-output kit. After each grinding session, even after blowing away the residue, there's always some remaining powder, making the countertop messy. So I designed this magnetic residue tray using the two existing screw holes under the grinder. It's divided into two parts, upper and lower, each secured with nine 5x2mm magnets for easy cleaning. The results are excellent. The screw hole spacing is 15mm. If your grinder doesn't have screw holes, you can use nano adhesive. If you need a residue tray without the curved interior, leave a comment and I will upload the design once it's done. Tip: When installing magnets, arrange them in three rows, with adjacent magnets having opposite polarities. This helps auto-correct their positions, enhancing user experience.