This sign is designed to use stacks of 2 standard 6x2mm magnets in each hole. I printed mine with the ‘Clean’ side flat on the bed, but it shouldn't make a difference. I used two color changes on my Prusa Mini at 0.2mm layer height to get the contrasting lettering. The second color change should coincide with the insertion of the magnets perfectly so you only need to pause twice if you want the front and back to be different colors. You could also print it in one color, but set a pause for the magnets. I prefer the multi-color look so you know from a glance what the status is.
Printer: Prusa Mini+
Filament: Orange - Polymaker PLAPro, Dark Grey - Inland PLA+, Green - Inland ToughPLA
Profile: 0.2mm, Generic PLA
The author marked this model as their own original creation.