Sprinkler Riser, 1/2"

thingiverse

I decided to save twenty-five cents by not buying a replacement sprinkler head at the hardware store and instead spent five hours modeling threads until my head pounded in frustration. Fits half-inch threaded pipe fittings, with thread pitch verified for compatibility. If you need shorter or longer threads, it's easy to crop a chunk from the middle and adjust the length as needed using software like 123d Design. I've included the 123dx file so you can modify it as desired. The original design had half as many ribs for added strength. I doubled the number of ribs to give it more substance, considering the fragility of PLA material. When printing, be sure to keep support structures out of the threads to avoid wasting an hour picking tiny pieces out of them like I did.