Datsun 280z horn pad signal part mount thing

It's the plastic piece that likes to get brittle and break off, the plastic piece that holds the metal spring that carries the current for the horn signal. Overall length of final part is supposed to be 20mm +1mm -0.0mm

print it on it's side, so there are no overhanging platforms. if not using a stereolithography printer, set your print quality to its highest setting