Replacement end for a target pin. I don't bother trying to print the actual pin - I've never gotten one strong enough to last. Much better to just glue in a steel nail, even if it is a second operation.

Uses a nail glued through the center hole for the pin. I mostly used 3" ring-shank nails that started with their own plastic cap that has since been destroyed. Two more holes for additional nails if you want more grip on the paper. It seems best to make the side nails shorter, otherwise the pins become hard to insert smoothly.

Creality

Ender 3

No

No

I put 10-100 on the print bed and then use a brim which binds them all together on the first layer. The combined first layer for a quantity of pins tends to hold them to the bed well and breaks free easily enough afterward.